Breadboard Friendly I2C Temperature Sensor - TC74A0
TO-220 packaged TC74A0 I2C temperature sensor in a breadboard-friendly pinout with ±2°C accuracy. Simple to integrate for basic temperature logging or monitoring where high precision is not required.
Pinout
- Pin 2 SDA2
I2C serial data. Adafruit states wiring is pin 2 is SDA.
Type · dataVoltage · 3.3V or 5V logic supported by the product page. - Middle pin GND3
Ground return. Adafruit states the middle pin is GND.
Type · groundVoltage · 0V ground reference. - Pin 4 SCL4
I2C serial clock. Adafruit states pin 4 is SCL.
Type · dataVoltage · 3.3V or 5V logic supported by the product page. - Rightmost pin 5 VDD5
Sensor supply input. Adafruit states the rightmost pin 5 is VDD.
Type · powerVoltage · 3.3V or 5V supply per the product page.
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: Rightmost pin 5 VDD, Middle pin GND. Schematik maps them to your board in the app.
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