De AHT20 is een mooie en betaalbare temperatuur- en vochtigheidssensor van dezelfde partij die ons de DHT22 bracht. Je kunt de sensor zo vaak uitlezen als je wilt, en hij gebruikt standaard I2C zodat hij bijzonder gemakkelijk te gebruiken is met elk Arduino of Linux/Raspberry Pi…
Power input for the AHT20 breakout; Adafruit Learn says to give it the same power as the microcontroller logic level.
Common ground for power and logic.
I2C clock; Adafruit Learn states the logic level is the same as VIN and the board has a 10K pullup.
I2C data; Adafruit Learn states the logic level is the same as VIN and the board has a 10K pullup.
STEMMA QT connector for the same I2C power, ground, clock, and data connections.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VIN | power | Power input for the AHT20 breakout; Adafruit Learn says to give it the same power as the microcontroller logic level. | 2.7V to 5.5V sensor supply, per Adafruit Learn pinouts | |
| GND | ground | Common ground for power and logic. | ||
| SCL | signal | I2C clock; Adafruit Learn states the logic level is the same as VIN and the board has a 10K pullup. | logic level same as VIN | |
| SDA | signal | I2C data; Adafruit Learn states the logic level is the same as VIN and the board has a 10K pullup. | logic level same as VIN |
I2C · 2.7V to 5.5V sensor supply, per Adafruit Learn pinouts · logic level same as VIN
Confirm the data interface matches your host board.
Module pins: VIN, GND, SCL, SDA. Schematik maps them to your board in the app.
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| STEMMA QT | connector | STEMMA QT connector for the same I2C power, ground, clock, and data connections. |