Florian/Lambdatronic_S3200
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ESPHome-Froeling-Lambdatronic_3200

ESHome RS232 to TTL - ESP8266 - Read data from Froeling / Lambdatronic 3200

Parts:

Wemos D1 Mini ESP8266: https://www.amazon.de/dp/product/B0CB85Q78G

MAX3232 DB9 RS232 TTL converter: https://www.amazon.de/gp/product/B0BNQ41QKQ

wiring diagram

Wemos D7 D8 5V G
MAX3232 RX TX VCC GND
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