Exploring Analogic and Digital Worlds
Goal: Safely control water pump from remote Requirements: Obtain a clean/stable output voltage; Address potential problems (relay contact soldering); Use…
How to program ESP-12E, simple board When choosing an MCU with WiFi support a good choice is a module from…
Read AC current and transmit reading via 433MHz This is the AC version of the program I published last year…
Double check rating of power connector on ACS712-30A modules. May happen that connector is only rated for 10A, in which case it makes sense to remove the connector.
Reading current with ACS712 and a ±0.1A accuracy. The most common problems in using ACS712 chip are floating readings and correcting noise influence.
DIY intro to etching without using a laser printer DIY PCB prototyping can be fun especially using recycled and cost…
Protect circuits using LM317 What happened is this: I made my first low-cost photovoltaic system, a small 12V, 4 x…