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- Pin GPIO Anmerkung Verwendung
- ----------------------------------------------------------------------
- D3 GPIO0 IO, 10k Pull-up Button links (+)
- D4 GPIO2 IO, 10k Pull-up, BUILTIN_LED Button mitte (-)
- D5 GPIO14 IO, SCK Button rechts (Mode)
- D7 GPIO13 IO, MOSI DHT22 Temp/Hum Sensor
- D0 GPIO16 IO Heizungsansteuerung
- D2 GPIO4 IO, SDA I2C SDA
- D1 GPIO5 IO, SCL I2C SCL
- D6 GPIO12 IO, MISO vorgesehen für PIR-Sensor
- D8 GPIO15 10k Pull-down, SS -- nicht verwendet --
- Hardware via I2C:
- - Display 1602 Addr: 0x27
- - Lux-Sensor BH1750 Addr: 0x23
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