2nd browser page that will allow adjustments to the timer/alarms; Timer/alarm time now stored in the EEPROM so a power off cycle will not reset them; 2nd relay added for a ON/OFF control at certain ...

This project is for creating an Adjustable Over Current Relay Using Arduino & ACS712 Current Sensor. All the details under this project published in this GIT. Fell free to use this and create your own ...

Fig. 2 shows the circuit diagram of the automatic school bell. It is built around Arduino Uno R3, 16×2 LCD display with I2C (MOD1), DS3231 RTC, 4×4 matrix keypad, 5V SPDT relay, 230V AC call bell, and ...

Arduino Due and the Ethernet shield W5100 have the microcontroller, which has enough GPIO pins for the 16 channel relay , or 2x 8-channel relay. Since Due does not have everyone, the prepared source ...