These are some great DIY projects that you can do for cheap.

I was looking for a sensor that could automatically detect falls to monitor the elderly. The first candidate that came to mind was a millimeter-wave radar sensor like the Aqara Presence Sensor FP2. It ...

Sold by German DIY store OBI, the OBI Energy Tracker is a €15 set of two devices, one of which you essentially stick on top ...

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

Even with Amazon’s Echo Show devices running Linux in the form of the Android-derived FireOS, using them for non-Amazon approved purposes can be a chore at best. In the case of the Echo Show 8 even ...

I built a whole-home ad blocker with a $7 ESP32-S3 board - and it took just minutes ...

Nucleo-144 (F429ZI, NUCLEO_F746NG, NUCLEO_F746ZG, NUCLEO_F756ZG) Discovery (DISCO_F746NG) STM32F4 boards (BLACK_F407VE, BLACK_F407VG, BLACK_F407ZE, BLACK_F407ZG, BLACK_F407VE_Mini, DIYMORE_F407VGT, ...

The board in this article is not a dedicated board limited to a specific communication standard. The basic policy is to first build a stable 8-input/8-output I/O board using the ESP32-C6 + MCP23017, ...

This library is not maintained. It was my first 'popular' Open Source project, and brought MQTT to the Arduino platform just as both were gaining popularity. But times have changed, and I haven't ...