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Graham Ross edited this page Apr 29, 2024 · 7 revisions

Welcome to the TS45ToMQTT wiki!

Parts

ESP32 Dev Module
RS232 Interface Module
DB9 RS232 Serial Cable Male to Male Null Modem Cable

Wiring diagram

RS232 Interface Module ESP32
VCC 5.0V
RX GPIO16 (RX2)
TX GPIO17 (TX2)
Gnd Gnd

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