Closed

interface and controller card for android tablet

This project received 15 bids from talented freelancers with an average bid price of $1280 USD.

Get free quotes for a project like this
Employer working
Project Budget
$250 - $750 USD
Total Bids
15
Project Description

I want you design an interface/controller card which will be connected to an android 4.0 tablet via USB port.
Card should have following ports on it.

- 1 PSU port for psu
- 1 USB port to connect to android tablet
- 2 analog port to read 4-20 mAmp devices
- 2 Onewire digital interface to read temperature sensors like DS 18s20
- 2 RS485 port for communication with external devices
- 1 RS232 port for Thermal Printer
- 10 Relay to control external devices
- 5 analog input to read shaft encoders
- RFID reader to read RFID Cards
- 2 port to read loadcell units

Designer should design pcb and also write a sample android application which can :
- read&show shaft encoder turns
- read temp values
- can open or close relays based on predefined conditions
- can read analog devices
- can printout data it reads or processed
- can read and identify rfid card
- can send processed data real time from rs485 ports.

Please keep in mind that application should be designed to work 7 day 24 hours.

All source codes and pcb design datas will be given to us.

Looking to make some money?

  • Set your budget and the timeframe
  • Outline your proposal
  • Get paid for your work

Hire Freelancers who also bid on this project

    • Forbes
    • The New York Times
    • Time
    • Wall Street Journal
    • Times Online