Finger Print Sensor Integration

https://www.adafruit.com/product/751

How Can we add finger print functionality ?

 

Ganesh Datt Joshi
Ganesh Datt Joshi
7
| 1 1 2
Asked on 6/2/18, 5:37 PM
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Hi, that sensor uses TTL Serial so if you have an INDIO, you can use the hardware serial ports on the IDC expansion connector. If the IDC connector is already taken (for Ethernet or GSM/GPRS) you can probably use the RS485 port by adding a common TTL/RS485 converter in between. Or look for a finger print sensor that uses RS485.

If you have a PROTO, you could simply use the screw terminals.

Tom
Tom
5210
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Answered on 6/4/18, 1:07 AM
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Hello serialport(usb to serial) for programming and idc connector serial port both are independent. can i use both at same time?

Ganesh Datt Joshi
on 6/4/18, 7:02 AM

Yes please check on https://github.com/Industruino/libraries -- the 3 serial ports can be used at the same time. if you want to use 'Serial' on the INDIO for anything else then RS485, make sure the hardware switch is pointing away from the RS485 terminals https://github.com/Industruino/libraries#rs485

Tom
on 6/4/18, 12:15 PM

I am using old 32u4 industiral board.

Ganesh Datt Joshi
on 6/4/18, 12:35 PM

My application is i need one serial port for finger print scanner and rs485 to send scanner data to plc.

Ganesh Datt Joshi
on 6/4/18, 12:37 PM

if you have an INDIO 32u4 and not using the Ethernet or GSM/GPRS modules then i suggest you use SoftwareSerial on any of the IDC pins

Tom
on 6/4/18, 11:15 PM

I have used D2 AND D3 as software serial but its not working, same code is running on arduino uno.

Ganesh Datt Joshi
on 6/9/18, 2:21 AM

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Asked: 6/2/18, 5:37 PM
Seen: 52 times
Last updated: 6/4/18, 1:07 AM