BoardPilotTMP36 analog temperature sensor with ESP32
Supply 3.3-5 V
Bus ANALOG
Measures temperature
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| +VS | Power | 3V3 | Left leg, flat side facing you |
| VOUT | Analog output | D34 | Middle leg. 750 mV at 25 °C, 10 mV per °C. To an ADC pin (prefer ADC1: GPIO 32 to 39) |
| GND | Ground | GND | Right leg |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Starter code (Arduino)
void setup() { Serial.begin(115200); }
void loop() {
int mv = analogReadMilliVolts(34); // VOUT on GPIO 34
Serial.println(mv);
delay(200);
}Sources
- Analog Devices TMP35/TMP36/TMP37 datasheet, Pin configuration and output scale (10 mV/°C, 750 mV at 25 °C)
- Analog Devices TMP36 datasheet, Supply 2.7 to 5.5 V
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.