Suljettu

Create Non-Streaming BTE Audio Playback Device Using BT201 Board

We wish to create a low-cost consumer audio playback device (PCB only) using a BT201 [login to view URL] audio board. This board is capable of storing and playing back MP3 files from local storage on a TF card (16 GB) and includes audio output as well as a built-in amplifier and Bluetooth 5.0 (BLE) and the ability to connect a 5V battery as well as expand onto the board via serial interface. Use dual 1000 mAh Lithium-Ion rechargeable batteries with a USB charging to power the board for 20 hours of continuous playback. Playback [non-streaming] will be through a single 3.5” 4omh/3W speaker. In addition we will add a separate powered relay to power a 2” computer CPU fan. You will then write a simple PC application to control audio playback (next/prev track, vol +/-, power and fan on/off) over BLE on a Windows PC using a BT USB adapter. The BT201 has functional firmware on it from the manufacture that can modified as required. Additional features should include a bi-color LED for status indication (solid orange = on, blinking orange = low battery, solid blue = BT connected, flashing blue = BT pairing, no light = off) + optional battery capacity status output to PC. The deliverable PCB once confirmed should be production ready for manufacturing. The aim of this project is to significantly reduce engineering and development by using off the shelf hardware to quickly produce a product for low-volume sales. Milestone 1 is to research and submit a BOM of components and milestone 2 is for a working test circuit to analyze the device and milestone 3 is for a completed functional prototype ready for manufacturing. We would like the completed board to cost $15-25 USD approximately e/a. Preferred deliverables are ASAP (rapid-development). Please quote this project competitively to engineer a functional prototype.

Manual & diagram attached for reference

> > Additional BT201 Resources: [login to view URL]

Taidot: elektroniikka, Piirilevyn asettelu, Mikrocontroller, sähkötekniikka, Piirisuunnittelu

Tietoa työnantajasta:
( 0 arvostelua ) Nashville, United States

Projektin tunnus: #24013092

7 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_18% %project_currencyDetails_sign_sub_19%/tunti tähän työhön

soloalexarrow

Hello. I am a professional audio device expert and have good industrial design experience 4 layer audio PCB desgin. I have developed audio stimulation devices for psychotherapists and patients from streaming DSD audio Lisää

$50 USD / tunti
(2 arvostelua)
5.5
Kingstech35

Hello, thank you for your job posting. I am a senior device developer. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic Lisää

$50 USD / tunti
(15 arvostelua)
4.7
gsa5b06f37877085

Hello, I am an electronic engineer and electromechanical technical. I work in an electrical testing laboratory, under international standards, I have been working here for more than two years I have more than 6 years Lisää

$50 USD / tunti
(3 arvostelua)
3.5
verdure823

Hi. I have the solid experience in embedded development and PCB using Allegro, Altium and Eagle for 10+ years. For example, STB, DVB-T2 modulator, Microwave Transceiver, GPS tracking system, UHF Data transceiver etc. Lisää

$50 USD / tunti
(2 arvostelua)
2.9
nathan103

Hello, I am very confident about your project because I have rich experience in developing lots of audio playback devices using BT201 with BLE PCB patch antenna and FM transceiver. I am familiar with RF circuit design, Lisää

$50 USD / tunti
(1 arvostelu)
1.4
a232004

hello there. I am SW and HW engineer developer with more than 20 years of experience in design and testing of complicated electronic system (please see my profile\resume for details) , located in Columbus, OH, USA. I h Lisää

$50 USD / tunti
(1 arvostelu)
0.5
hameedakbar688

Hi I won't waste your time in proving that why you hire me. i have experience of 3+ years in Electrical field and good enough to complete your task effectively. I can Complete In Time Limit .Kindly inbox me , assign m Lisää

$50 USD / tunti
(0 arvostelua)
0.0