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interface and controller card for android tablet

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.

Skills: Android, C Programming, Electronics, Embedded Software, Microcontroller

See more: android usb, rs232 input relay, design application android, data sensors, card reader android, card reader design, android sensors, android 6, thermal, thermal printer, thermal engineering, tablet, rs232, rfid reader, rfid design, read rfid card, encoder data, controller, android read write, android designer, printer control card, rfid reader android, printer control, work tablet, control relay android usb

About the Employer:
( 9 reviews ) ISTANBUL, Turkey

Project ID: #4319835

15 freelancers are bidding on average $1280 for this job

MikroStar

hi, i am an electrical engineer and an embedded system designer. i can help you with this project.

$7150 USD in 65 days
(25 Reviews)
6.0
yhaat

Hi, I can do this job.

$1200 USD in 40 days
(17 Reviews)
5.0
MIKY4227

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

$1500 USD in 45 days
(18 Reviews)
5.0
tmhoang14

Hello, I'm interested in this project. Please arrange the discussion so we can move further.

$787 USD in 30 days
(9 Reviews)
4.9
shahbaz1980

Hi,check your PMB.

$1375 USD in 30 days
(5 Reviews)
3.6
pcbdcs

I can do it.

$750 USD in 45 days
(7 Reviews)
3.5
pythonshell

consider it done . !!! check pm.

$400 USD in 12 days
(8 Reviews)
2.9
hireafreeelancer

Be so Good,They Can't Ignore You. Please check PM for smart solution

$721 USD in 25 days
(14 Reviews)
2.3
sincosten

Respected Client, Please check PMB for listing and confident to complete the project with quality services.. Best Regards

$773 USD in 10 days
(2 Reviews)
1.9
veltrod

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$700 USD in 22 days
(2 Reviews)
0.7
saqibraza89

Iam a good equipped person to do this job.Thanks

$400 USD in 15 days
(0 Reviews)
0.0
AEpower

please see PMB

$1545 USD in 60 days
(0 Reviews)
0.0
jenny12345

Please check the PM:

$262 USD in 10 days
(1 Review)
0.0
techlotus

It's an easy task for us. We have gone through your requirements and we are ready to start the work immediately on your project. We will send you the complete list of company's projects and portfolio once you reply us More

$824 USD in 20 days
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0.0
techbomb

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$880 USD in 16 days
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0.0
volansys

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$750 USD in 25 days
(0 Reviews)
3.7
ypembedded

Please check the PM;

$777 USD in 20 days
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0.0