Esp32 ble example jobs

Hi! I am looking for Bootstrap 5 Expert who can design single page like It must responsive in all device. if you can do it in $10, Please bid with word called READY $10 so I can talk and hire you. Thanks!

Commercial project with the use of esp32 and mq gas sensors to prevent leaks. Well, the idea of ​​this stage of the project is precisely to develop the source code to run on esp32 where in a certain amount of gas detected it will alarm a buzzer, otherwise it will be connected to Firebase - Firestore where it will be sending this parameter, together as a wifi manager so that it is possible to enter the wifi credentials of the person who buys the device independently and precisely so that I can pull this data and display it through an application in FlutterFlow. In short, my intention in this project is to develop the source code and prepare the database there in Firestore where I want it to have a structure that is commercial, for example: The person who buys logs int...

Project Name: Project description: 1. The project is consisting of Nextion NX8048P070_011 the Nextion touch screen. 2. Tested uploading at 9600 ok. 3. Tested to respond to set page 0, page 1, … 4. Tested to print lines Ok. 5. The ESP32 sketch is resending and run. 6. The ESP32 is running good communications to Nextion touch screen. 7. The Project is ready and claimed to be working at freelancer place. 8. The HMI is responding. 9. The project have 4 screens ( page 0, 1, 2,3) and 10. screens keybrdC 11. screens keybrdA 12. screens keybrdB. 13. There are Variable send to SCR from ESP32 and The Variable read from HMI ob ESP32 for calibration. 14. Calibration stored in EEPROM What required

Create example project of Next js with Devextreme JavaScript Component. - Datagrid - Drop Down Box

I've written an application in ESP32 using esp-idf and need help to make it better.

I have a pretty simple project dealing with an esp32 and a inmp441 microphone. I just need some help getting it setup where the esp32 turns on and will start streaming audio to a public server I am running (Public ip address) and having the server save the audio as a .mp3 file or whatever

The current project proposes to explore an alternative localization system based on WiFi or LoRa either as a standalone system for localization or offer a correction to the existing GPS system. The scope of the proposal includes - Explore the feasibility of a sta...correction to the existing GPS system. The scope of the proposal includes - Explore the feasibility of a standalone WiFi or LoRa system for high accuracy triangulation within a given bounding area. Accuracy in the order of 10 to 30 cms Transform a given triangulation to a map localization for a base station in any polygon (4 base stations +) Explore alternatives including WiFi or LoRa, and Bluetooth BLE for triangulation and error detection to aid GPS localization. Develop a Proof of Concept system to demonstrate the ca...

We want to use a ESP32 Arduino () with 2x Linear Technology ADCs (which has an SPI interface). We're looking for someone to connect us the 2 ADC chips to the ESP32 and read out the data. The data should be sent to a PC using the Serial Monitor in the Arduino environment. The software should also set the output voltage from the onboard DAC to 1.5V. We need you - to buy 2 ADC chips and the ESP32 board (total cost $50) - solder the ADC chip onto a breakout board or similar to allow it to be connected - add a potentiometer for testing - make the correct connections - develop the code so the 2 ADCs can be read independently. WE DON"T JUST WANT SOMEONE WHO SENDS US SOFTWARE!! It's important to us that you demo the actual ADCs working with the board

I have some really simple BLE Kotin code, in the call back I want to find a device with a particular name and then connect to the device. The scan and call back is working, but I cannot work out how to compare the to my target BLE device name. This looks really simple, but I just cannot work it out and just need the code to complete the compare of strings, See the code below: private val scanCallback = object : ScanCallback() { override fun onScanResult(callbackType: Int, result: ScanResult) { val indexQuery = { == } if (indexQuery != -1) { // A scan result already exists with the same address scanResults[indexQuery] = result scanResultAdapter

I need someone who can develop android app which is made of python package. this program should communicate with BLE device and can analysis HRV. please bid if you have much confidence

I'm looking for a programer to develop the User Interface of a 2.1inch round display using arduino. Multiple screens, sensors readings and touch commands are part of some functions to be programmed. Updates of firmware via BLE technology. To run on my PCB board it must be esp32 s3 and serial data format compatible. Displays is round like a watch kind. Please watch this video

Hallo Narola Infotech, we are searching for a BLE specialist. Please check https://www.freelancer.com/projects/bluetooth-low-energy/BLE-with-NRF-chip-connection/details

Hallo Preetpal S., we are searching for a BLE specialist. Please check https://www.freelancer.com/projects/bluetooth-low-energy/BLE-with-NRF-chip-connection/details

Hi BIII We are searching a long time partner for a BLE embaded software project https://www.freelancer.com/projects/bluetooth-low-energy/BLE-with-NRF-chip-connection/details

Hi all. We have an electronic lock with a BLE electronic in it and a Nordic nrf52832 on board. As soon as there are many locks in the environment, we need up to 15 seconds to send the "open the lock please" command to the lock. Sometimes we get "connection timeout" as well. Based on the app developer, it has to be an issue with the firmware in our lock. They tried many different things. Task: solve the problem :-) I look for a long term partner and I will send you many locks to test. You need a Segger programmer and experience with BLE. Everything is on Gitlab. I have also a programmer here but hardly time to test things. If you have a solution, I will need a bundle file to flash my locks.

Good morning, I need to develop an App for Android and iOS, it must be able to interface with the electronic board (ESP32) of a Robot connected via Bluetooth and / or Wi-Fi. The App must have a main screen with the image of the product, a weekly timer of 24 hours for the daily switching on and off of the device, a button to activate and deactivate the device manually and a battery level indicator, select 3/4 operating modes of the Robot.

Looking for someone with alexa experience. I am developing Smart IoT product using ESP32 chip. I am currently controlling dimmable and colorable lights through alexa. It can also be controlled through the alexa app. I want to display air quality value in alexa app. Thanks

The project is about a simple RGB LED to drive. The color can be Red/Green/Blue depending the status. The status can be 1, 2 or 3. The status can be read by website: The value is random. For testing porpose you can test with mode: The website will return the mode and RGB value to display on LED. Power: +5V from USB (max 1.2A) The interval to update the LED is about 20 seconds. Possible part list (sample file attached): 1. MCU 2. LED strip (>500mW) Delivery: - PCB source file for EasyEDA (or similar to order PCB) - Part list - Arduino code source file How we will test: - Let the PCB produced by manufacturing (5 pieces) - Order and solder the parts from partlist on your PCB - Upload the Arduino program - Let the LED work and check if all 3 states are coloring correct - Let the ...

I would like a app making so I can control a rgb controller . The board has a ESP32 with bluetooth .

1 - plataform software .bin with our logo 2 - this plataform should have some functions, for this project i need 1 function ready. ( i already have the code done in Raspeberry , just need to convert to c++ for the esp32. 3 - the software plattaform must have a license code to avoid copy, activator may be a solution. this plattaform will need to be set more function, around 4 -5 each of the function we will talk about the cost. I will inform all necessary information you need

Hello, I am looking for a person able to design a controller for a 24VDC BLDC motor with a starting current of 90A and 35A running. The motor has no hall sensors and a BEMF control system needs to be implemented. I have a preliminary design and what I need is to improve it. Also, I would like to use an ESP32 to be able to manage the logic. If you have done similar projects and you think you can do the project, do not hesitate to send me your proposal. To make sure you are a serious freelancer and that you have read this message completely, start your proposal with the word "ESP32BLDC". All messages that do not have this word at the beginning will be automatically discarded. Important: Due to bad experiences in the past with unserious freelancers, I do not make payments ...

The idea is that when the ultrasound detects a distance of less than 2m. Automatically take a photo and save it to the microSD card located in the ESP module.

You have to use Photoshop to draw/copy a fire after an example image. We only need the fire from the picture. No wood nothing else

I need a ESP32 expert to help me improve an ongoing robotic vehicle project that involves a Mars Rover-like robot that will be operating in a hands-on science museum. Here is the first issue I need help with: I have a complex Arduino application running on a ESP32 inside a Mars Rover. The ESP32 is acting as a webserver. A control station computer sends commands to the webserver to tell the rover to do things. And the rover sends back sensor data. The ESP32 program does what it's supposed to do when it's functioning, but sometimes the ESP32 becomes unresponsive and stops taking commands from the control station. It can be just after completing a request or seemingly random. From what I can tell (by periodically flashing an LED from within the ma...

We need support to create a mobile app on Android devices based on Python and the Kivy framework. The app has a simple GUI, just it gets temperature data from a BLE sensor, embedded in advertising packets. Then it create a record adding GPS lat lon and timestamp and the sends the data over UDP protocol to a dedicated UDP server. We need to set up the environment, the code and the apk for Android.

To build and deliver a good and robust product, a testing engineer role as first-layer QA is required to objectively validate the product performance against user and system requirements. Job descriptions and responsibilities To have full understanding of how the Product system works, how the Product was designed, what the u...reports to other teams Requirements Fluent in English Holds Electrical/Electronic/Physics engineering degree Understands embedded electronics, analog and digital electronic signals, electrical motor, sensors, relays and actuators, and power supply Understands how to work with electronic instrumentation equipment Understands computer communication (serial, WiFi, Bluetooth) Has good hands-on in ESP32, and Arduino programming with C/C++. Willing to relocate ...

...for an Embedded Software Engineer who will develop software with C++ on the electronic circuit we have developed. We can work on a project basis and for a long time. Function of the card: It has 24-45V input range. There is one MCU (Novuton, Atmega or STM series) on the circuit. There are ESP32, BLE 5.0 sensor, Quectel EC25 modules connected with MCU. Internet will be accessed with Quectel EC25. Communication will be made on the circuit in protocols such as MDB, ccTalk, Executive, Dex, VCCS, RS232. With ESP32, internet access can be provided via Wifi. In addition, some data will be recorded with an integrated sd card or rom with MCU. Features - MDB Protocol Support - DEX Protocol Support - ccTalk Protocol Support - RS232 communication support - Internet access wit...

We want to build a fleet iOT software Where we sell the Solution as a SaaS. Witch means we will have master log in with controll over all customers and sensors. Software will have customer log in Where they can activate sensors connected to tracking products. Sensors will be BLE beacon tracker and GSM 4G/5G sensors. All customers will have controll of all their trackers and can add and delete their fleet tracking. Tracker will have information about. Name of product, serial no, tracker no, start date, end date, service log, add picture of product, product categorie, project connection of product, company name, main user, note field. All functions is search abel with filter function. Software can also add and delete project to connect fleet on it. Software will be cloudebased in brow...

We are looking for a developer with knowledge on Thingsboard platform to do different tasks, some of them related to configuration and set-up of the tool and others related to some developments, mostly related to the dashboards and devices integrations, ESP32 mostly and also raspberry and Jetson Nano. Here the links to the platform we are talking about and git repositories:

I am looking for a simple routine to generate HMACSHA256 that can be verified with return hmacsha256(base64UrlEncode(header) + "." + base64UrlEncode(payload)) Example void loop(){ char * key = "your-256-bit-secret"; char *payload = " "; char *checksum = hmacsha256(payload,key); (checksum) }

Just need two very basic programs.

this is an IOT project around an existing and running ESP32 mobile GPS logger. The job is to use an (already established) Wifi connection to contact a website API and requesting JSON data. This data needs to be put in an array, interpolated and stored. Once a track is written (onboard SD card, working) AND the data is still valid (1hrs timeout) it needs to be appended to the track file. Development environment is PlatformIO with Arduino framework. more detailed project description attached in PDF

Hi, I need working QR code example app for shopify. You could see their tutorial I need this into working version. Please write instructions to setup this app. Thanks,

Hi, i have small project for a 2 wheel robo car. I need the car to move using mpu9250 and esp32. Your job will be to code mpu9250 with tilt compensation. The outcome should be that i could tell the car to go along a specific angle and it should continue on that angle till i change the angle to a different angle. Do you have experience working with navigation using magnetometer, accelerometer and Gyro? How much would you charge me to get me the code for this? I use arduino ide. [Removed by Freelancer.com Admin - please see Section 13 of our Terms and Conditions]. You can call me if you need more info on my requirements. Thanks Ranjit

Create a single example rust program using the tokio () async framework that implements the two following functions to interface to a networked device. 1. Async TCP client that connects to a device on TCP port 9760 a) Create an async reader function that reads messages from the device (not polling) These messages are variable-length binary messages and must be read as bytes values (Not a text string). Format in hex (<u8> 0x16, <u8> Length, <u8> 1 .. Length payload ) Messages are variable length unto 257 bytes (2-byte header + 255 bytes data) Eg 16 04 00 0E 00 00 You need to read the first two bytes (ie 0x16, 0x04) to determine the variable payload length. The variable payload length is in the second byte, in this example case 4 bytes. Then you n...

NextJS example project. I am looking for someone with high expertise on frontend and years of work with NextJS

...Schneider Electric GV2ME08AP. This breaker can have add-on contacts using GVAE11 or GVAN11 extra modules, so there are some Normal Open and Normal Close contacts to work with. You have a modem-router with a sim card to provide internet access to the place of installation. An ESP32 module or a small PLC is there to connect. The end user must be able to connect from another city(!) to the ESP32 or PLC through a simple web page. The web page must me in a free web site creator such as Google Cloud or Wix web hosting. The ESP32 or PLC and the user PC are connected to a different wi-fi spot. I need to see the state of each motor even if I am in a different country! There are 15 different places, each one far along from the others and in each one there are two motors. ...

esp32 MCU with wifi/bluetooth and sensors with i2c, uart etc communication.

Need ro program esp32 for collecting data through UART(485) and post the data to web

We have an existing mobile app written separately in both Android Kotlin and IOS Swift. Our software works integrated with Bluetooth. To put it briefly, our own product BLE performs text scrolling according to the data it receives from the 4 buttons on the control. We want new features added to this app. In addition, it is expected to support the uploading of software to APPStore and PlayStore. Applications with at least 5 years of experience in Android Kotlin and IOS Swift platforms/software languages or both will be considered. If you are a Turkish national, please specify. It may vary in working conditions. New features to be added will be discussed during the agreement process. To put it briefly: 1-) Multi-interface language support will be added (10 different languages) 2-) Cha...

i have one robot car with two wheels. I'm using Esp32 to control the car. The robot have Vl53l0x to avoid obstacles. So I would like to a guide about the need hardware. I would like a program to know the position x,y, than I can to adjuste the route of car. The error position should be less than 5cm. I have a SD card that record the odometry, after it I can read it and rest the similar route. Maybe use ROS guide by VL53L0X or other option???

Write a simple flutter ble serial app(android and ios) that - Scan for ble device and connect - Will read and write data - show progress bar in flutter (based on ble read) There’s a ready to use example : As this is simple app, show the working ble serial demo video for award

I am Using ESP32 Embedded Board for " Smart Home Automation " Needed to Add Push-Button-Switch & Temp-Sensor to the Existing Code & Test-It. (Removed by Freelancer.com Admin)For Sharing Code . I am Doing Same 1:1 Project --

ESP32 based embedded controller firmware development with WiFi, Bluetooth, Ethernet, RS485 & Modbus Another project involves Zwave with Arm Cortex M33

On the example is written Hard Rock Cafe, well in the new logo design this must be the new text: Sugar Daddy Rock Cafe

Project as discussed

I want to build a f1 wireless wheel with an ESP32, 12 push buttons, 4 rotary encoders and 2 mechanical end switches. the ESP32 must go to deep sleep to save battery power when no button is pressed for 10 minutes, any button pressed must wake esp32 from sleep. Bluetooth must connect automatically to PC/Xbox or playstation when wakeup. esp will be powered with an battery, popup or voice notification when battery reaches 20%.

I have design ready which includes ESP32 along with some I2C peripherals. Existing design includes PCF8574 IO expander which is based on I2C. Due to some technical reason It is required to replace PCF8574 with MCP23017. This is a part of the ongoing project. So for the moment my requirement is to do replacement of PCF8574 with MCP23017 (Will hire for next stages and other projects too only if work is appropriate). So for this replacement you have to do following... 1. Make required changes in existing schematic with all necessary components (such as strong pull-up/pull-down). 2. Do layout changes according to the updated schematic(as per step 1). Layout changes has to be done as minimum as possible, so that existing layout won't change much. Note: - Existing design has been d...

Write a simple flutter ble serial app(android and ios) that - Scan for ble device and connect - Will read and write data - show progress bar in flutter (based on ble read) There’s a ready to use example : As this is simple app, show the working ble serial demo video for award

creating an HRV app (iOS and Android), that will receive rr-interval from a standard heart rate BLE device and user cleanse parameters, and run the python library to cleanse, analyze and show the HRV calculation and graphs.