When I wrote about the Home Assistant 2025.3 release last week, it was pointed out to me that ESPHome firmware had its own release on February 19th, and in other Smart Home news, Home Assistant got ...

Fig. 2 illustrates the circuit diagram of the IR remote switch. The circuit is built around the TSOP1738 IR module (IR1), IC 4027 (IC1), two PNP BC558 transistors (T1, T2), a 5V SPDT relay, and a few ...

The controller also features a 2.33-inch touchscreen display, a 10A relay, a 12V to 24V DC screw terminal for power, 5V USB-C port for programming, a Qwiic connector for expansion, and BOOT and Reset ...

Over-voltage Protection Module to handle direct connection of voltage regulators to a 5V battery using standard 2.5 OD 3.3V devices View Over-voltage Protection Module to handle direct connection of ...

Over-voltage Protection Module to handle direct connection of voltage regulators to a 5V battery using standard 1.8V IO devices View Over-voltage Protection Module to handle direct connection of ...

Basically it uses an analogue circuit to monitor an audio signal and triggers some camera flashes using 5V relays. The idea is that you can play lightning strikes and other spooky sounds ...