It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for ...

Odds are, if you like neon lights, you’re not thrilled with the LED faux-“neon” strips that are supposed to replace them.

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

An Arduino library for 7-segment display modules based on the TM1637 chip, such as Seeed Studio's Grove 4 digit display. The TM1637 chip also has keyboard input capability, but it's not implemented in ...

12V Adapter (+) ──┬── LM2596 VIN+ └── INA219 VIN+ └── Relay COM 12V Adapter (−) ──── LM2596 VIN− ──── ESP32 GND LM2596 VOUT+ (5V) ── ESP32 VIN LM2596 VOUT− ── ESP32 GND INA219 VCC ── ESP32 3.3V INA219 ...