Here is the circuit diagram of a compact RTC module, based on the popular RTC IC DS1307, for your everyday microcontroller projects. The DS1307 serial real-time clock (RTC) is a lowpower, full ...

What is the DS1307 RTC? The DS1307 serial real-time clock (RTC) is a lowpower, full binary-coded decimal ... The DS1307 has a built-in power-sense circuit that detects power failures and automatically ...

Below is a circuit diagram for a greenhouse fan. When the greenhouse becomes too hot (above 27 degrees Celsius), a motor fan will switch on to cool the greenhouse down. Figure caption, ...