Aihasd Multi Functional Expansion Board Sensor Shield for Arduino

4-way LED indicator(LED indicator to know the importance, in the actual doing engineering, with this indicator can be used directly working status LED indicates the procedure to facilitate debugging) you can connect temperature sensor interface yourself to do the temperature measurement experiment you can use LM35 temperature sensor interface to do the temperature measurement experiment 3296 precision adjustable Potentiometer, analog port input (can be used to control LED brightness, turn the steering angle, the digital voltage, etc.)