Raspberry Pi has just released the standalone Camera Module 3 Sensor Assembly via its approved resellers, starting at $15. For context, these are the core sensor components that came with the 12MP ...

Recently, I exhausted my stock of common passive infrared (PIR) motion sensor modules and was looking for a new one to play with. I searched the web for a small type with self-contained electronics.

The title says it all – this article describes a microcontroller-compatible current sensor module you can build yourself, using an inexpensive 8-pin chip as an ‘active shunt’ for measuring ac/dc ...