I am programming a nodemcu, manufactured by amica. I am reading TTL input from an EM-18 module on digital pin D2 (mapped to GPIO pin 4). The RFID tag IDs read by the nodemcu are incorrect. For example: Actual tag ID : 0005452711 Value read by esp8266 : 12005333A7 Actual Tag ID : 0003949515 Valu…

esp8266 SoftwareSerial reading incorrect values

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