Analog jobs

...requires handling a mix of digital inputs via I/O expanders and direct analog inputs. The final design files must be delivered using KiCad 10 (or the latest stable version). ( Very easy job: Budget 120 USD ) Project Requirements & Technical Specifications Core MCU: Raspberry Pi RP2040 (integrated into the board design, not as an external Pico module). Controls & Inputs Architecture: 24 Push Buttons: Managed via 2x MCP23017 I/O expanders over the I2C interface. 3 Slide Potentiometers: Connected directly to the native ADC pins of the RP2040. 1 Rotary Encoder: Connected to digital pins for quadrature decoding (plus its push-button switch). Analog Hardware Optimization (Critical): Special attention must be paid to the analog frontend to completely prevent ...

...that will sit at the heart of a new sensor-interface product. The board must collect analog data, run it through an on-board DSP, and then push results out over Wi-Fi, Bluetooth, and a cellular link. To keep the unit fully portable, all power must be managed through an integrated battery management system, including charging, protection, and efficient rail generation for the analog, digital, and RF domains. Here’s what I need from you, start to finish: • Complete schematic capture with full part selection, paying special attention to RF front-ends, low-noise sensor inputs, the DSP section, and the battery management circuitry. • A 4–6 layer stack-up that cleanly separates noisy digital, sensitive analog, and RF zones, with controlled-impeda...

...Daisy designs into one single PCB. Designs Daisy board: | Designs Technical Requirements: ADC: 2x ADS1299IPAG (daisy-chained via SPI). They must share the same external clock for perfect synchronization. MCU: Replace the old RFD22301 with an ESP32 (for WiFi/BLE). Strict isolation of the ESP32's RF noise from the analog front-end is crucial (low-noise layout/shielding). Sampling Rate: Target is 250 Hz per channel, but the SPI timing, ESP32 buffering, and wireless data transmission must be robust enough to support up to 500 Hz or 1000 Hz across all 16 channels. Storage: Replace ST-TF-003A with MSD-3-A (MicroSD slot). Power: Integrate a charging circuit for a 3.7V 2000mAh LiPo (JST connector) with USB-C input for

...Daisy designs into one single PCB. Designs Daisy board: | Designs Technical Requirements: ADC: 2x ADS1299IPAG (daisy-chained via SPI). They must share the same external clock for perfect synchronization. MCU: Replace the old RFD22301 with an ESP32 (for WiFi/BLE). Strict isolation of the ESP32's RF noise from the analog front-end is crucial (low-noise layout/shielding). Sampling Rate: Target is 250 Hz per channel, but the SPI timing, ESP32 buffering, and wireless data transmission must be robust enough to support up to 500 Hz or 1000 Hz across all 16 channels. Storage: Replace ST-TF-003A with MSD-3-A (MicroSD slot). Power: Integrate a charging circuit for a 3.7V 2000mAh LiPo (JST connector) with USB-C input for

...The final deliverable must demonstrate ultrasonic TOF measurement on small non-ferrous metal components through a working prototype and demonstration video. I need help taking a lab-bench concept for measuring ultrasonic wave velocity and turning it into a rugged, handheld instrument that works reliably on Platinum, Silver, Nickel, and brass samples. The core tasks include designing the full analog front-end (pulser/receiver, low-noise pre-amp, gain control, anti-alias filters), selecting and driving the piezo transducers, and implementing a precise time-of-flight algorithm in an embedded platform. I am open to ARM, DSP, or FPGA solutions as long as we can achieve micro-second timing resolution and keep power draw low enough for a battery-powered unit. On the digital side I ...

I already have a Grandstream UCM-series IP PBX on site and reachable for remote work. The hardware is up, the , but the system is still running on factory defaults. I need a Grandstream-savvy engineer to jump in and complete the core setup: • Create and test all user extensions (SIP and any analog FXS ports that may be required). • Build a clean inbound route so external calls land where they should. • Design and activate a simple operator/IVR menu that greets callers, routes them to the right extension or ring group, and falls back to voicemail if unanswered. Please handle dial plans, basic voice prompts, time conditions, and any minor tweaks that are typically part of making the above work smoothly. I’ll supply extension lists, Remote access is available...

...that will sit at the heart of a new sensor-interface product. The board must collect analog data, run it through an on-board DSP, and then push results out over Wi-Fi, Bluetooth, and a cellular link. To keep the unit fully portable, all power must be managed through an integrated battery management system, including charging, protection, and efficient rail generation for the analog, digital, and RF domains. Here’s what I need from you, start to finish: • Complete schematic capture with full part selection, paying special attention to RF front-ends, low-noise sensor inputs, the DSP section, and the battery management circuitry. • A 4–6 layer stack-up that cleanly separates noisy digital, sensitive analog, and RF zones, with controlled-impeda...

... We need a full-stack embedded systems engineer to design the custom Flexible PCB layout in KiCad and write the bare-metal C/C++ firmware for an STM32 microcontroller to process the sensor data. Key Deliverables & Scope: 1. KiCad Flex-PCB Layout: - Design a custom-shaped, ultra-thin Flexible PCB (Flex-PCB) insole footprint based on provided mechanical DXF profiles. - Implement strict analog signal integrity layouts, utilizing active shielding, guard rings, and cross-hatched ground planes to aggressively isolate traces from stray capacitance and body movement noise. - Apply flexible circuit design rules (e.g., teardrop pads, rounded trace corners) to survive continuous dynamic running cycles. 2. STM32 Firmware Development: - Develop bare-metal or RTOS-based C/...

...Materials (BOM) with manufacturer part numbers design calculations manufacturing drawing calculations drawings procedure support during bring-up documentation for manufacturing Preferred Skills Electronics Design SMPS Design Input DC-DC Converter Design & Magnetic Design 5.Analog Circuit Design PCB Design Compliance Power Supply Design Power Electronics Experience Note: The selected freelancer may be required to provide online technical discussions during the design and prototype validation phase. Production-ready design quality is expected. Prototype Requirement: Preference will be given to freelancers who can manufacture

...Features: Sensors: Integration of an EOG and IOG Connectivity: Bluetooth Low Energy (BLE) for data transmission. Power: Low-power optimization with a small LiPo battery and a magnetic charging setup. Form Factor: High-density, tight-space layout (experience with small or rigid-flex PCBs is a major plus). What You’ll Do Select optimal components based on power and size constraints. Design the analog front-end for clean sensor signals. Create the complete schematics and provide layout guidance for a reliable V1 prototype. Qualifications Proven experience designing tiny, battery-operated wearables. Familiarity with low-noise bio-signals and BLE systems. Strong practical technical understanding and ability to work within a budget-conscious framework. How to Apply Ple...

...board in the lineup is an ESP8266-based IoT controller. I already know the core feature set I need—reliable sensor integration, solid wireless communication and on-board data logging—so your task is to translate those requirements into a clean, production-ready PCB. Scope of work • Schematic capture and PCB layout for the ESP8266 module (ESP-12 or similar) with break-outs for common digital/analog sensors, UART/SPI/I²C headers and a micro-SD slot for logging. • Keep-alive circuitry, 3 V / 5 V level shifting where needed, and a regulated power stage that accepts both USB-C and external DC input. • Generation of manufacturing outputs: Gerber, drill files, pick-and-place, and full BOM with part numbers in stock at at least one major supplier (e...

I am building a board that needs a compact mixed-signal section dedicated to high-accuracy data conversion. The job is to design the entire ADC/DAC front-end, marrying the sensitive analog path with the supporting digital logic so the output is ready to drop straight onto my main PCB. What I need from you • A complete schematic showing the analog input stage, the chosen ADC and DAC devices, reference circuitry, clocking, and the glue logic that links everything to an MCU or FPGA header. • Component selection with justification, balancing performance, availability, and cost. • Simulations that verify noise, linearity, and timing (SPICE, LTspice, or similar). • A clean, well-annotated PCB layout file (Altium, KiCad, or Eagle—your choice, just ...

I’m working with the open-source HandHeldLegend/hoja-device-fw project that targets the Raspberry Pi RP2040. I already have a short code snippet that defines a frame-perfect macro intended for gaming cheats: when the physical Y button is pressed the firmware must • hold Y for exactly 16 ms (one frame), • release it for 16 ms, • then push the Right Analog/C-Stick fully downward for another 16 ms. Nothing else in the firmware should change. What I need from you 1. Pull the repository, drop the snippet into the correct input pipeline so the macro cleanly intercepts the Y press without introducing latency or breaking other inputs. 2. Compile the project in a proven RP2040/Pico SDK environment (CMake, gcc-arm-none-eabi, etc.) and return a ready-to-flash...

...that port is active. Deliverables Complete schematic design (KiCad / Eagle / Altium — specify your preferred tool) PCB layout (Gerber files) Bill of Materials (BOM) Fully assembled and tested working prototype (1 unit) Basic test/validation report confirming all logic combinations (AND/OR, invert, all 4 input-output connection types) function correctly Skills Required PCB Design & Layout Analog/Digital Electronics (Logic Gates, Voltage Regulation) Embedded Hardware Prototyping Experience with JST connector-based modular hardware (preferred) Notes for Freelancers This is a non-programmable board — no microcontroller, firmware, or software logic is required. All decision logic must be implemented in hardware (discrete logic gates / ICs). Please share sim...

...Hardware Design Consultant (Industrial Instrumentation) We are looking for an experienced Electronics Hardware Design Consultant to support our D&D department in developing and upgrading industrial instrumentation products such as Ultrasonic Level Transmitters, Radar Level Transmitters, Capacitive Transmitters, and various Level Switches. Scope of Work: Electronic circuit design and calculations Analog and digital hardware development 4-20 mA and HART communication circuits Power supply and protection circuit design EMC/EMI-compliant hardware design Schematic and PCB design reviews Design optimization for reliability and manufacturability Support for IEC 61000 and EMC certification requirements Upgrading existing products with advanced features and improved performance Pref...

I run an analog broadcasting facility and need an experienced radio engineer to work directly on our transmitter and tower-mounted antenna system. Your focus will be the RF chain—from the exciter right through to the radiating elements—making sure we’re operating at peak efficiency and fully within our licensed technical limits. You’ll have access to current schematics, field strength and SWR readings, plus any service manuals we hold. Using your own measurement gear (spectrum analyser, dummy load, vector VSWR meter, etc.) or equivalent tools on-site, I’d like you to: • Diagnose and resolve any signal quality or coverage issues linked to the transmitter or antenna • Retune, align and verify power output and reflected power figures &bul...

I want to create a branded control board that keeps the familiar Arduino UNO R3 footprint yet swaps the ATmega328P for an ESP32. The finished board must: • expose the usual analog inputs, PWM outputs, serial ports and full digital I/O • break-out every pin through sturdy screw terminals instead of header pins • carry an on-board battery cradle for two 18650 cells (3.7 V each) and an integrated 2-cell BMS • arrive pre-flashed so it shows up in the Arduino IDE exactly like a normal UNO-style target Because the unit will be wall-mounted, an ABS enclosure that matches the board outline, standoffs and connector layout is part of the job. I need mechanical files (STEP/STL) alongside the electronics deliverables. Deliverables 1. Schematic, PCB layout and Gerber/ODB ...

..._ 5 Desired Skills We are looking for engineers with experience in one or more of the following areas: • Analog electronics • Mixed-signal electronics • Power electronics • RF electronics • Resonant circuits • Embedded firmware • Medical devices (preferred but not mandatory) ________________________________________ 6 Schedule Target schedule: • PCB layout within approximately 1 month • First assembled and tested prototype within approximately 2 months Alternative schedules may be proposed if technically justified. ________________________________________ 7 To Apply Please provide: 1. A short description of your relevant experience 2. Examples of previous projects involving: o Analog electronics o RF or resonant circuits o Pow...

...expert to perform a detailed design review, identify any issues, and recommend improvements before PCB layout and compliance testing. The power supply includes: 12V DC Input 12V to 5V / 3A Buck Converter 5V to 3.3V LDO Regulator Reverse Polarity Protection Input Fuse TVS Protection Common Mode Choke (CMC) Ferrite Beads ESD Protection EMI Input & Output Filters Power Distribution for Digital and Analog Circuits Scope of Work Review the complete power supply schematic Verify component selection and values Review buck converter and LDO design Review fuse, TVS, ESD, and reverse polarity protection Review EMI/EMC filtering and power integrity Identify design mistakes, reliability concerns, or potential compliance issues Suggest improvements before PCB layout Provide PCB layout r...

I need an ESP32 project that takes 7 analog inputs and produces 9 large numerical outputs on a graphical display. Requirements: - Use of ESP32 microcontroller. - Read 7 analog signals. - Display 9 Zones of Large Numbers on 9 Displays Ideal Skills and Experience: - Proficient in ESP32 programming. - Experience with analog input handling. - Strong skills in graphical display programming for large numbers.

I’m putting together an automotive-grade dashcam that runs on an AI SoC and would like a complete hardware schematic as the next step. The core board has to handle two on-board 1080 p digital cameras via MIPI-CSI while also accepting two additional analog cameras through an external A/D bridge so the system can switch seamlessly between all four views. The SoC must be wired to support real-time object detection, lane detection, collision warning, and driver monitoring / assistance functions; please route all required high-speed, power-management, and memory interfaces accordingly. I already have a rough block diagram, so the focus here is turning that concept into production-ready circuitry with a clean, logically layered design that will pass an automotive EMC review. D...

...Temperature sensor * BLE beacon * Tire pressure monitoring (future) --- ## Sensors Include support for: * 3-axis accelerometer * Optional gyroscope * Internal temperature monitoring * Backup battery monitoring --- ## Inputs & Outputs Include: * Ignition input * Door input * SOS button * Digital inputs * Digital outputs * Relay output for engine immobilizer * LED indicators * Buzzer output * Analog input --- ## Power Supply Automotive-grade design supporting: * Wide input voltage (minimum 9–36V) * Reverse polarity protection * Over-voltage protection * Under-voltage protection * Load dump protection * Automotive transient protection * ESD protection * Low power sleep mode * Backup battery charging --- ## PCB Requirements * Compact PCB * 4-layer PCB preferr...

AI-powered business analytics platform that transforms existing CCTV cameras into smart business assistants. Instead of using cameras only for security, businesses can use them to gain real-time insights, automate monitoring, and improve decision-making. Businesses connect their existing analog, IP, or hybrid CCTV cameras through RTSP. The AI analyzes the video in real time and presents the results in a secure cloud dashboard, where every business has its own private account, users, cameras, and reports. The platform offers features such as: * Customer counting and peak-hour analysis * Queue and cashier wait-time monitoring * Table and seat occupancy * Staff presence monitoring * Customer movement and journey analysis * Promotion effectiveness * Unusual activity detection ( like ...

Product & Technical Brief: The Binny Ecosystem Concept Overview: Binny is a screen-free, AI-powered assistive ecosystem designed for users who interact with the digital world purely through voice and analog handwriting. The system bridges physical pen-and-paper actions and real-time voice navigation with modern cloud APIs using a pocket-sized 4G hardware gateway. The platform consists of three integrated pillars: 1. The Binny Smart Keychain: A cellular/Bluetooth hardware gateway and live location tracker. 2. The Digitizer Pen: A white-labeled smartpen tracking analog handwriting. 3. The Cloud Architecture: A server orchestrating Voice AI (Vapi), Messaging (Telnyx), and document workflows. Part 1: The Binny 4G Smart Keychain (Hardware Gateway) Product Description The Bi...

I need a skilled programmer to create an HMI and PLC program for a Mitsubishi system. The setup includes 100 digital inputs, 100 digital outputs, and 15 analog inputs. The primary goal is monitoring and control, with data types as required. Key Requirements: - Experience with Mitsubishi HMI and PLC programming - Familiarity with environmental engineering applications - Ability to implement robust monitoring and control systems Ideal Skills and Experience: - Proficiency in PLC programming languages - Knowledge of environmental data parameters - Strong problem-solving and system integration skills Please provide relevant experience and approach in your bids.

...disposable mouthpiece adapter to connect the airway to one pressure port on the sensor Basic wiring (jumper wires or soldered point-to-point — no custom PCB needed for this stage) A simple enclosure (3D-printed box is fine, doesn't need to be polished — functional only) What "done" looks like Each of the 5 units should: Power on from the LiPo battery Read the MPXV7002DP sensor via the ESP32's analog input Stream raw voltage/pressure readings over Bluetooth Low Energy (BLE) — a simple GATT characteristic broadcasting numeric values is sufficient, no need for a polished app yet Be testable with a generic BLE scanner app (e.g. "nRF Connect" on phone) so I can confirm readings change when I blow into the mouthpiece Be housed in a b...

I'm looking for a skilled Roblox developer to help create an analog horror game. Requirements: - Foggy forest map - Detailed and immersive UI - Tokens as in-game currency - Currency shop - One unique analog horror character model with special abilities (to be discussed) - Player abilities like speed boost, stealth mode, or invisibility Ideal skills and experience: - Proficiency in Roblox Studio - Strong UI design skills - Experience with game mechanics and currency systems - Ability to create unique character models and abilities Please provide examples of previous work in your bids.

I need a skilled programmer to create an HMI and PLC program for a Mitsubishi system. The setup includes 100 digital inputs, 100 digital outputs, and 15 analog inputs. The primary goal is monitoring and control, with data types as required. Key Requirements: - Experience with Mitsubishi HMI and PLC programming - Familiarity with environmental engineering applications - Ability to implement robust monitoring and control systems Ideal Skills and Experience: - Proficiency in PLC programming languages - Knowledge of environmental data parameters - Strong problem-solving and system integration skills Please provide relevant experience and approach in your bids.

...target specs (6-layer, ENIG finish) Final deliverable: one zip — Gerber + drill + Centroid + BOM — that passes DRC and is ready to upload to PCBWay, plus a quick note of any changes you made. Looking for: someone comfortable in (or able to import the project into KiCad/Altium), with real PCB layout experience and a portfolio of boards that have actually been manufactured. Mixed-signal / analog-sensor layout experience is a big plus...

I need help setting up temperature readings using an Arduino and a Type K sensor for an industrial application. Requirements: - Use a Type K temperature sensor - Display data after analog read Ideal Skills and Experience: - Proficient in Arduino programming - Experience with Type K sensors - Familiar with industrial applications and data display

Layout needed for a four-layer board built around an ATmega32U4 using Autodesk Eagle. The design includes 18 RGB LEDs, a micro USB connector that also supplies power, and several digital/analog inputs. Schematic initial component placement will be provided; your task is to complete the routing and hand back clean manufacturing files. Board does have odd dimensions and a large top-side keepout area, see the attached image. Please route with sensible and standard design rules. Deliverables are the fully routed and DRC-clean Eagle files (.sch and .brd). I’ll consider the job complete when the files import into Eagle 7.6.0 without errors and pass my fab house’s DRC. A quick turnaround is desired.

I need a custom control board built around the ESP32 for an upcoming IoT monitoring system. The hardware must accept four analog sensor inputs, provide a robust RS-485 port, drive a relay output, and convert 12 V down to 3.3 V with appropriate efficiency and protection (ESD clamps, reverse-polarity safeguards, etc.). Your job covers the complete board cycle—from schematic capture and part selection through to a clean, fabrication-ready layout. I typically work in KiCad and Altium, so either environment is fine as long as the final package is consistent and well-documented. Deliverables • Complete schematics • Optimised PCB layout (4-layer if you believe it is warranted) • Gerbers, drill files, and pick-and-place data • Detailed BOM with supplier lin...

I'm seeking a skilled designer to create a unique and stylish analog watch. Key Requirements: - Original design concepts - Knowledge of watch mechanics and aesthetics - Experience in product design, especially in fashion accessories - Ability to create detailed sketches and 3D models Ideal Skills: - Strong background in industrial design - Proficiency in design software (e.g., AutoCAD, SolidWorks) - Understanding of market trends in watch design - Excellent communication skills for collaboration Please share a portfolio with relevant work.

...polishing needed: Mastering-Specific Adjustments Needed: Transient Management: Some transients are either overly smoothed or too sharp—multiband transient shaping could help retain punch without harshness. Dynamic Range Optimization: There’s room for refinement in micro-dynamics—consider parallel compression to preserve energy while enhancing perceived loudness. Harmonic Saturation: A touch of analog-modeled saturation could add warmth and cohesion, especially in the upper midrange. Phase Coherence Across Stereo Field: Low-end phase correlation is inconsistent—mid/side EQ could help realign this without compromising stereo width. Loudness Targeting: The final LUFS reading doesn’t yet meet streaming platform specs while retaining dynamic integrit...

...fully documented. --- Arduino Mega Pro Firmware Firmware responsibilities: Analog Inputs * MAF * MAP * IAT * ECU Voltage * Sensor Voltage Digital Signals * 8 Ignition Coil Channels * 8 Injector Channels * Battery * Switch * Start Switch Button * ETC * Fan 1 * Fan 2 * Fuel Pump * IMMO+ * IMMO- * MRC+ * MRC- * IAC Stepper Signals Signal Processing * CKP acquisition * CMP1 acquisition * CMP2 acquisition Requirements * Timer interrupt architecture * Waveform buffering * Extensible code structure * Well-documented source code Preferred implementation: * Timer1 ISR * 10 kHz acquisition rate minimum However, I am open to suggestions that result in the betterment of the final prototype. --- Dashboard Features Analog Gauges Animated circular gauges: * MAF * MAP * IAT V...

I’m building a prototype around a TrustZone-enabled Renesas MCU that must meet tight security requirements while handling 4 digital inputs, 4 digital outputs, 2 relays, 2 analog inputs, plus Bluetooth and Wi-Fi connectivity. Hardware and firmware are moving in parallel, but I now need extra horsepower on both fronts. On the hardware side the immediate focus is full-cycle support: schematic capture, board layout, prototyping, bench testing, and clean integration of every section—power, relays, analog front end, RF modules, and debug interfaces. Schematics and PCB files should be delivered production-ready with a complete BOM and clear test reports so I can push the design straight to a short run. Firmware must preserve TrustZone isolation and enforce restricted u...

We are looking for an experienced VoIP/SIP engineer with expertise in AI voice integrations. We have already integrated our AI Personal Assistant platform with ElevenLabs and Retell AI. Inbound calls are working successfully across Analog, SIP, Public IP, and CGNAT environments. Outbound calls are working only on Public IP connections and require further assessment and optimization. Our objective is to build a scalable telephony architecture that allows customers to connect their existing phone numbers (Analog, SIP Trunk, Mobile, PRI/E1, PBX, etc.) to our AI voice platform. The consultant/freelancer should have strong experience in: •⁠ ⁠SIP, VoIP, PBX, and SBC technologies •⁠ ⁠Grandstream UCM, HT series gateways, Yeastar, 3CX, Asterisk, FreePBX •⁠ ⁠Sessi...

I'm seeking an experienced electronics design consultant to create a mixed-signal circuit for a traffic light system. Key Requirements: - Expertise in mixed-signal circuit design - Experience with traffic management systems is a plus - Ability to provide detailed schematics and design documentation - Collaboration for design reviews and modifications Ideal Skills: - Strong background in both analog and digital circuit design - Proficiency in industry-standard CAD tools for circuit design - Knowledge of traffic light control systems and safety regulations Please include relevant experience and examples of previous work in your bids. Looking forward to your proposals!

...a highly skilled, hands-on Embedded Systems Engineer to help build a functional prototype of SolarPump X—an ultra-compact, solar-powered, Bluetooth-controlled smart tire inflator. This is a fast-paced, zero-to-one prototyping project bridging low-level hardware and mobile connectivity. ● Key Responsibilities: Develop firmware in C/C++ (ESP32/nRF52), establish a robust BLE server, interface with analog/digital pressure transducers, program closed-loop automation, and debug hardware/software bottlenecks. ● Requirements: Proven experience with ESP32/STM32, strong C/C++ skills, hands-on BLE implementation, ADC integration, and experience switching high-current inductive loads. ● Deliverables: Flashed working ESP32 script with BLE connection and calibrated pressure reading, test...

I need a schematic completed in EasyEDA for a small PCB that will trigger three illuminated or non illuminated switches. Each switch is to plug in to a JST plug. The board turns three analog inputs into a plug-and-play USB joystick (X, Y, Z) that every modern Windows, macOS or Linux PC will recognise instantly. In addition I require 2x3 male header pins that will allow 3 LED's to light up when the switch is turned on. Connection to PC The PCB is to have a standard mini USB type B connector for connection to PC or Mac. No drivers are required. Plug it in and use straight away. Powered by USB bus (+5V - 500mA) so no external power supply would be required Full-speed 12Mb USB connection. Unique serial number that helps Windows remember each device - Controller retains settings...

I'm seeking an experienced audio engineer to design a dual-output audio processor with two voltage-controlled frequency boundaries. This device will split an incoming audio signal into two paths DEPENDENT upon audio frequency for live performance use, and needs to support both analog and digital output formats. Like an analog adjustable band pass filter, except instead of attenuation, it redirects the signal to a second channel. And the frequency of the two sides of the band pass are adjustable (obviously) by two knobs, or CV. (CV overrides the knobs)... and there a resonant feed back but we can discuss that mor later. Also, I know everybody says this, if this one turns out good, I've got 5 more much larger projects lined up. Also looking for someone who can do the ...

I’m ready to shoot a full-length music video for my R&B tr...varied textures (murals, alleyways, corner store glow). • A small, agile crew experienced with music video shoots; DP with a strong eye for that glossy but slightly grainy 90s aesthetic. • Production day management: handheld and steadicam shots, natural street lighting plus minimal portable rigs to keep it authentic. • Post-production: classic 4:3 or letterbox framing, warm color grading, analog-style transitions, final export in 4K and HD. Deliverables will be the mastered edit, a performance-only cut for social snippets, and all raw footage. If this vibe and scope match your reel, let’s lock dates and start storyboarding. I want this done via AI I don’t want to be part of th...

I'm seeking an experienced Solid Work designer to help create watch components for my brand.

I need a compact, low-noise analog front end for a multi-lead ECG built around the Texas Instruments ADS1298. The goal is a fully validated schematic and PCB layout that can capture clean ECG signals, digitise them through the ADS1298, and present the data via an SPI interface for a downstream MCU. Key points of the job • Core converter: ADS1298 integrated correctly with its internal PGAs, reference, and bias generation. • Signal chain: front-end instrumentation amplifiers, right-leg drive, antialias and mains-rejection filtering sized to meet IEC 60601 ECG bandwidth/noise limits. • Power: dual-supply or single-supply rail architecture with proper isolation and low-drop regulators. • Safety & compliance: pay attention to patient-isolation clearances an...

...buttons. * Should feel like a natural extension of the original layout. 7. USB-C Replace original charging/data connection. Requirements: * USB-C port. * Reliable wired operation. * Charging support if wireless. 8. PC Compatibility Primary target platform is Windows PC. Requirements: * Plug-and-play compatibility preferred. * Support for reWASD. * Support for Steam Input. * Support for analog movement. * Stable USB connection. Optional Features: Wireless Support * Bluetooth or 2.4 GHz. * Long battery life. * Wired operation must still be possible. Remappable Firmware * Internal remapping. * Onboard profiles. Additional Rear Paddle * Nice to have but not required. Adjustable Trigger Stop * Nice to have but not required. What Should NOT Change: * Overall shape. *...

I need original music for an Analog Horror Series. Requirements: - Dark and atmospheric mood - Prominent use of synthesizers - Unique and eerie soundscapes - Have an undertone of hope/redemption Ideal skills and experience: - Proficient in music composition and production - Experience with synthesizers - Background in creating horror or atmospheric music

ESP32 firmware for an experimental, battery-powered maker devkit (SyncStim) that plays a 10 ms audio...separately. Acceptance is oscilloscope-verified: exact pulse train (3 pulses, 150 us per phase, 1 ms onsets, net DC near zero, under 3 mA), 10 ms audio with 1 ms cos2 ramps, interval measured acoustically, 200 ms cadence, and an electrode-detach safety halt. Skills: ESP32 (ESP-IDF or Arduino-ESP32), I2S audio, deterministic sub-10 us timing (MCPWM, RMT, or timer ISR), H-bridge and constant-current analog, oscilloscope. KiCad or EasyEDA for the optional PCB phase. Note: experimental DIY electronics for educational and maker use only; not a consumer or medical product. Battery-powered and mains-isolated; not for use across the head or chest, or by anyone with a pacemaker or heart ...

...buttons. * Should feel like a natural extension of the original layout. 7. USB-C Replace original charging/data connection. Requirements: * USB-C port. * Reliable wired operation. * Charging support if wireless. 8. PC Compatibility Primary target platform is Windows PC. Requirements: * Plug-and-play compatibility preferred. * Support for reWASD. * Support for Steam Input. * Support for analog movement. * Stable USB connection. Optional Features: Wireless Support * Bluetooth or 2.4 GHz. * Long battery life. * Wired operation must still be possible. Remappable Firmware * Internal remapping. * Onboard profiles. Additional Rear Paddle * Nice to have but not required. Adjustable Trigger Stop * Nice to have but not required. What Should NOT Change: * Overall shape. *...

I’m putting together a short Brazilian analog-horror piece and need a CGI creature that shows up only a handful of times—each appearance lasting roughly 2–10 seconds. The setting alternates between a dimly lit house, where we see the creature only in fragments, and empty nighttime streets, where it is shown in full. Creature brief • Scale & posture: humanoid, about 2.5 m tall, arms so long the hands brush the ground. • Face: a smooth, mask-like surface; instead of eyes, readable words glow or flicker, adding to the unsettling analog-tape vibe. • Mood: the design should feel unmistakably eerie and in-universe with retro VHS artefacts—think scan lines, color bleed, and slight frame jitter. Scope of work 1. Concept refinement ...

...for discussion once the basic framework is proven. An Arduino-class board running Python (CircuitPython or MicroPython is fine) will sit at the center of the design. Core behaviour • A proximity sensor with a simple NO/NC or other switched-DC output tells the microcontroller when the vehicle is near its target. On that event the code must turn the devices on or off, make or break the live analog video path, and if required trigger visual or audible alerts. • A vibration/accelerometer module tracks motion. When the vehicle has been still for a preset timeout the controller should cut power to all three devices, blink a “sleep” pattern on an LED, and enter a deep-sleep state to save the battery. Once vibration resumes the system must wake cleanly and ...