microswitch array to android usb - repost 2

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I require 3 ‘microswitch’ boards with 4 micro switches per board and a ‘central’ PCB board that will interface the microswitch boards to an Android device via USB

The purpose of the microswitch boards is to send data to the android device every time there is a status change on any of the switches.

Data sent must include which switch/es which status has changed.

The ‘central’ PCB must also accommodate a 12v light (with an open/close switch which is operated by a door). So that data of pressed/depressed (on/off) for this switch is also sent to the android device via the same usb.

This project does not involve any android development except that data is received into the android os.

The Android app which will be used with the hardware development as mentioned above will only be developed once this project is complete.

Details of data protocol sent to the Android device will be required from the worker. This will be used to develop the Android app.

So deliverables include schematics, PCB files, microcontroller code and an actual prototype board to demonstrate that the provided concept is viable.

Other info related to the project is as follows:

• status of any switch will NOT change more than once every 50ms

• USB output from android device is 5V

• I don’t mind if the power to the boards is from the USB or external source. Worker must specify.

Skills: Engineering, PCB Layout

See more: open source pcb layout, mind array, microcontroller prototype, develop on android device, close android app code, board prototype, android close app, android central, android 4.2.2, android 2.2.2, engineering schematics, prototype PCB, pcb development, hardware development, c++ to android, android os, android layout, Android Development, android app usb, android open source project, open source app android, android app board, accommodate layout, power board app, android usb app

Project ID: #4199391

7 freelancers are bidding on average $514 for this job

deanosAU

Hi, I can help with this.

$750 USD in 14 days
(12 Reviews)
5.4
MIKY4227

Hi i can help you , see portfolio for samples of works

$500 USD in 7 days
(14 Reviews)
4.9
Davelelievre

Hi Yossit, I believe I can help you withthis project as I have just completed a very similar project that needed to data log micro switch changes over a period of time and send these via a USB interface.

$750 USD in 15 days
(2 Reviews)
3.2
varticartur

I can do this project for you in few days.

$300 USD in 5 days
(2 Reviews)
2.1
technofreakz

I have designed pcb with cadsoft eagle.

$250 USD in 4 days
(1 Review)
2.1
alexanderkf

Hello I am a professional Electronic Engineer and PCB designer.

$600 USD in 16 days
(2 Reviews)
1.7
nicu66pr

I can do this job.

$400 USD in 20 days
(0 Reviews)
0.0
yytoh

Hi, I can do this without microcontroller, see pm.

$3000 USD in 90 days
(0 Reviews)
0.0
isuruathukorala

Dear Sir, I can do this.

$450 USD in 20 days
(0 Reviews)
0.0