I need a circuit designer who can also build 2 prototype for me

$250-750 USD

Closed

Posted

almost 6 years ago

$250-750 USD

Paid on delivery

I need to create a design with a raspberry pi powered by Lipo battery with charging option(like in Mobiles) and have 4 microphone array and 3W speaker. The whole design need to be in a box with provision for charging, slot for microphone and speaker as well have a button to switch on/off the system

Circuit Design

Project ID: 17202049

About the project

8 proposals

Remote project

Active 6 yrs ago

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8 freelancers are bidding on average $431 USD for this job

@sourabh470

Hello Sir, its seems that you need a circuit board that have options for 1. 4 3.5mm jacks for microphones. 2. 1or 2 3W(4ohm) speakers amplifier. 3. header pins to connect r-pi zero or in build r-pi chip 4. main power supply on/off switch. 5. battery charging circuit for 3.7v lipo or 18650 cell. 6. micro usb for charging. I have 4 years experience in PCB designing in EAGLE( single multilayer and flex) following are some examples of my work 1. ESP12E wifi + relay board + humidity&temp sensor Smart module 2. ESP12S wifi + relay board home automation board. 3. ESP12E wifi + RC522 RFID + BUCk converter module. 4. atmega328au + hm11(BLE)+ relays car actuator module. 5. atmega328au + nrf24l01 + relays smart switch module. 6. atmega328au + mpr121 capacitive touch smart remote. 7. amega328au + LCD display + hc06(later hm10) + amplifier + strain gauge water mapping module. 8. atmega328au + hm10(BLE) + gyroscope + reed sensor + battery charger smart skateboard module 9. Arduino Uno clone. I will provide you all necessary files ( gerber, smd-coordinate, BOM, Eagle(.brd& .sch) and 3D files). please, see my portfolio for more sample of my work. or initiate chat I will share some 3D simulation of my work. thanks.

$280 USD in 6 days

5.0

(4 reviews)

3.0

@soltracker

Buddy,,,How r u?Its me Imad,,,will make and send the both prototypes in this budget to ur country... u will feel brotherhood..............

$250 USD in 10 days

5.0

(1 review)

0.0

@gaber26113

Hi I can make that project for you, also prototype the two samples you need Please message me for more discuss, anf i am ready to start Regards Relevant Skills and Experience Engineering, pcb design, prototype

$555 USD in 30 days

0.0

(0 reviews)

0.0

@eabdallatef

i'm software engieneer my major is embedded systems i'm so intersting to help you with your project I have many projects based on arduino and raspberry pi like Smart meter, smart home using many sensors humidity, temperature,motion,tft touch screen,lcd. and iot emergancy robots which stream video and audio to Web server from anywhere by raspberry also made a persons detector by raspberry pi & ip camera so I can help you with my experience in raspberry pi

$250 USD in 3 days