0

I am trying to configure the B1 RFID hat on my raspberry pi since it is a cleaner solution than using a USB RFID reader. However I have ran into some issues.

Firstly, the documentation supplied by Eccel is very minimal and offers no library or install guide specific to a Raspberry Pi. It only offers information on a previous model not suited to a pi.

I have tried using some data and know-how, I have tried to use the UART serial to read back data from an RFID card, however it returns nothing. Here is the code I am using:

import time, serial

port = serial.Serial("/dev/serial0", baudrate=9600, timeout=3.0)

while True:
    print(port.read(100)) #<-- I assume here the argument is bit count??
    time.sleep(0.5)

This code does not return any errors, it just doesn't print any response when a card is presented.

If anyone has experience with this particular product and can offer an insight it will be much appreciated!

9
  • 1
    Why guess? Read the documentation. pythonhosted.org/pyserial/pyserial_api.html#serial.Serial.read read(size=1) Parameters: size – Number of bytes to read. Returns: Bytes read from the port. Return type: bytes Read size bytes from the serial port. If a timeout is set it may return less characters as requested. With no timeout it will block until the requested number of bytes is read.
    – joan
    Commented Jan 6, 2020 at 15:20
  • This is not an answer, it only confirms what I already thought. This does not contribute to solving my problem at all. This should have been a comment at the very most
    – EcSync
    Commented Jan 6, 2020 at 15:24
  • Actually it would seem to contradict what you already thought: "I assume here the argument is bit count??" -- nope, docs say bytes.
    – goldilocks
    Commented Jan 6, 2020 at 15:55
  • I skimmed your RFID thing and wow! I have never seen such a deluxe RFID/NFC reader with a Swiss army knife with too many blades (see Fig 1.1 of user manual), no wonder it costs you £30+. Newbie starting suggestion: (1) Do not connect it to Rpi yet. Try to see if you can use Win10 RealTerm to say Hello (eg. "AT" command) talk to it using USB/UART 9k6bd8n1. If successful, then use Rpi python built in UART (TxD/RxD), or USB to TTL UART.
    – tlfong01
    Commented Jan 7, 2020 at 2:16
  • The module is very standard interface, so I guess it should be easy to mess around. Reference: (1) My comments of this UART projector Q&A - raspberrypi.stackexchange.com/questions/105405/…. (2) RaspberryPi-B1 - Product Details and Specifications- RS 2017apr24 docs.rs-online.com/9b30/0900766b815c553a.pdf (3) RaspberryPi-B1 User Manual V1.2 (UART COM port) - Eccel docs.rs-online.com/e911/0900766b815c553b.pdf
    – tlfong01
    Commented Jan 7, 2020 at 2:17

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.