This is an Arduino-based Proximity Sensor circuit wired using the ... If everything goes right,you should see the burning eye of the red LED when there is no object in the safe-zone (within 5 cm from ...

The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...

With small Arduino boards becoming more popular, ... Olympia Circuits Teases Arduino Programmers With $60 Arno Shield. ... - An I2C digital temperature sensor to introduce between-device digital ...