Arduino
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ESP family
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TMP36 – Analog temperature Sensor
TMP36 temperature sensor is an easy way to measure temperature using an Arduino! The sensor can measure a fairly wide range of temperature (-50°C to 125°C), is fairly precise (0.1°C resolution), and is very low cost, making it a popular choice.
To use it, simply connect pin 1 (left) to a power source (between 2.7 and 5.5V), pin 3 (right) to ground (GND) and finally pin 2 (middle) on an analog input of your micro controller.
The output voltage is 0V at -50°C and 1.75V at 125°C. It is easy to convert the output voltage (in millivolts) to temperature using the formula:
Temp °C = 100*(V reading) – 50
The data sheet of the TMP36 is available here.
In this tutorial we will go over the basics of hooking the TMP36 up and writing some basic code to read the analog input it is connected.
Specifications
- Low voltage operation (2.7 V to 5.5 V)
- Calibrated directly in °C
- 10 mV/°C scale factor (20 mV/°C on TMP37)
- ±2°C accuracy over temperature (typ)
- ±0.5°C linearity (typ)
- Stable with large capacitive loads
- Specified −40°C to +125°C, operation to +150°C
- Less than 50 µA quiescent current
- Shutdown current 0.5 µA max Low self-heating
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