Connects to an MQTT server. Looks for weight logs from scales. Inserts in to SQL database.
Also included is Arduino/ESP8266 code tested on ESP-01 and ESP-12F. Sends to MQTT and HTTPS.
The ESP can be inserted in to the scales and connected to GND, 3.3V and Serial.
See https://youtu.be/l1VAymhwtVM for details of wiring.
Press "SEND" on scales to send a weight.
Also PCB and instructions for use with PN532 card reader.
(c) 2019 Andrews & Arnold Ltd, Adrian Kennard. See LICENSE file (GPL).