
Adafruit's AHT20 temperature and humidity sensor on a STEMMA QT board, with a 4-way header row.
One of the Environmental Sensor family.
- Made by
Adafruit
- SKU
- 4566
- Kind
- Circuit board (PCB)
- Licence
- CC-BY-SA-3.0
- Keywords
- aht20, temperature, humidity, sensor, stemma, qt, i2c
| Overall size (X × Y × Z) | 25.4 × 17.8 × 4.6 mm |
|---|---|
| PCB size | 25.4 × 17.8 mm |
| PCB thickness | 1.6 mm |
| Mounting holes | 4 × Ø2.5 mm |
| Through-hole pads | 4 |
| Components | 8 |
| Function | environmental sensor |
| Form factor | stemma-qt |
| Chip | AHT20 |
| Interface | I2C |
| Logic level | 3.3-5 V |
| Supply voltage | 3.3-5 V |
| Range | -40 to 85 °C, 0-100 % RH |
| Qty | Part | Value | References | Datasheet |
|---|---|---|---|---|
| × 2 | Wire-to-Board ConnectorSH side entry · 4 | STEMMA_I2C_QT | CONN3, CONN4 | JST SH datasheet (JST) |
| × 1 | QFN / DFNTDFN-6 2.5x2.5 P0.65 | AHT20 | U1 | AHT20 datasheet (Aosong) |
| × 1 | SMD Capacitor0603 | 0.1uF | C6 | X7R SMD MLCC series datasheet (KEMET) |
| × 1 | SMD Capacitor0805 | 10uF | C5 | X7R SMD MLCC series datasheet (KEMET) |
| × 1 | SMD LED0603 · green | GREEN | D1 | |
| × 1 | SMD Resistor0603 | 220 | R1 | RC_L series datasheet (Yageo) |
| × 1 | SMD Resistor Array4x0603 | 10K | R5 | CAT16/CAY16 series datasheet (Bourns) |
Variations
AHT20 Temperature & Humidity SensorAdafruit
BME680 SensorAdafruit
DPS310 Barometric Pressure SensorAdafruit
MCP9808 Precision Temperature SensorAdafruit
SGP40 Air Quality SensorAdafruit
SHT40 Temperature & Humidity SensorAdafruit
BMV080 PM2.5 Air Quality SensorDFRobot
Fermion: BMP585 High-Precision Barometric Pressure SensorDFRobot
BMP581 High-Precision Barometric Pressure SensorDFRobot
Gravity: BMP585 High-Precision Barometric Pressure SensorDFRobot
Gravity Electrochemical Gas SensorDFRobot
IIC Ozone SensorDFRobot
MICS-4514 MEMS Gas Concentration Detection SensorDFRobot
Miniature Non-contact Liquid Level SensorDFRobot
SFA40 HCHO SensorDFRobot
DS18B20 Sensor AdapterGeneric
SparkFun Photon Weather ShieldSparkFun
SparkFun SHT1x BreakoutSparkFun
SparkFun Thermocouple BreakoutSparkFun




