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MFR522 RFID discussion notes

#!/usr/bin/env python import os import time import RPi.GPIO as GPIO from mfrc522 import SimpleMFRC522 import array as arr GPIO.setwarnings(False) GPIO.setmode(GPIO.BCM) pinList = [5,24,0,2,3,4,27,25] rfidList = [1081714680121, 871849641659, 504025229752,         […]

SIM900 UART notes

SIM900 A6 GPRS GSM Module and Rpi4B UART Communication Problem Ask Question Asked today Active today Viewed 12 times 1 I use a module same as here with my RPI 4B and there were difficulties in communication […]