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design minature sound circuit board using piezo speaker with solar power

need minature circuit board design that uses a recorded sound chip (like for greeting cards), plays short track every 5 to 10 minutes on a small flat piezo speaker using solar power and a small battery for a 6 month life. need on-off switch and LED indicator

Evner: Kredsløbs Design, Elektrisk Ingeniørarbejde, Elektronik, Microcontroller, PCB Layout

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Om arbejdsgiveren:
( 0 bedømmelser ) United States

Projekt ID: #16318377

16 freelancere byder i gennemsnit $156 på dette job

shahbaz1980

Hello, have a great day. I-TECH will design the required circuit. We already have developed few prototypes that work with solar cells and have rechargeable batteries. Deliverable will include: 1. Schematics. 2. B Flere

$250 USD in 10 dage
(48 bedømmelser)
6.9
$155 USD in 3 dage
(49 bedømmelser)
5.8
sofiadubina99

i am a embedded hardware and software expert and have rich experience with hardware design and firmware development. i designed pcbs and developed firmware for it , manufactured prototype directly. you can check my Flere

$155 USD in 3 dage
(13 bedømmelser)
5.0
binyameen441

Hi There I have checked your project description and understand everything. I am very confident that i can do this project perfectly. Thanks

$155 USD in 3 dage
(34 bedømmelser)
4.8
$155 USD in 3 dage
(10 bedømmelser)
4.8
masov2017

Hi, I am an electrical engineer and expert in circuit design and PCB layout. I've designed thousands of various electronic circuits so far and your circuit is in fact a piece of cake for me. I can finish your project w Flere

$111 USD in 3 dage
(21 bedømmelser)
4.8
ExpertEngineer7

I am embedded system electronics engineer and have worked on CNC motor control board, bluetooth speakers, etc. I have understood your requirements 100% please consider sending me a message so that we can discuss furth Flere

$200 USD in 10 dage
(13 bedømmelser)
3.8
wenzhaoxu

I read the description, I think I can do it. I have developed some voice play product. I am expert in circuit design/pcb layout/mcu program. I have more than 19 years experience. I am Chinese, I live in China. I can Flere

$222 USD in 20 dage
(1 bedømmelse)
3.8
mha593efed516da0

I am electrical engineer. .I have lot of experience working with various employers globally. Can I do Circuit Analysis and design, Power System Analysis,DC/AC machines Electrical Distribution , translation and tech Flere

$120 USD in 3 dage
(7 bedømmelser)
2.6
soltracker

How r u?Bro,,Its me Imad,, Have done 200+PROJECTS REGARDING MATLAB, ARDUINO, VB.NET, PHP, HTML, PCB DESIGNING and much more. Some of the projects are as follows. 1. NEXTION LCD Based bike monitoring and Control Syste Flere

$40 USD in 3 dage
(7 bedømmelser)
2.7
$100 USD in 3 dage
(1 bedømmelse)
2.0
$100 USD in 3 dage
(2 bedømmelser)
1.7
$333 USD in 30 dage
(1 bedømmelse)
0.5
mhassanm67

Try my best

$155 USD in 3 dage
(0 bedømmelser)
0.0
microenergy

Dear Sir, Greetings from Turkey. I hope you are good. Let me introduce me. I'm Electronics Enginner who have 19 year experience. My experience is related to power electronics, hardware design, analog desig Flere

$83 USD in 3 dage
(2 bedømmelser)
1.5
RJTelectrotech

Please go through our profile fully to know about our line of activity and experience. We have more than 15 years of experience in designing and manufacturing custom built electrical and electronics devices.

$166 USD in 15 dage
(0 bedømmelser)
0.0