microswitch array to android usb - repost 2

CLOSED
Bids
9
Avg Bid (USD)
$778
Project Budget (USD)
$250 - $750

Project Description:
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 required:
Engineering, PCB Layout
About the employer:
Verified
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.


$ 750
in 14 days
$ 500
in 7 days
$ 750
in 15 days
Hire varticartur
$ 300
in 5 days
$ 250
in 4 days
Hire alexanderkf
$ 600
in 16 days
Hire nicu66pr
$ 400
in 20 days
$ 3000
in 90 days
$ 450
in 20 days