Lady Beetle LED
Lady Beetle LED is nothing but a little automatic model toy light, may be a nice Xmas gift for your loved companion. Here’s its tried and tested circuit diagram: As you can see, the circuit […]
Little LED Night Marker (v1)
Little LED Night Marker introduced here is a simple circuit based on the common and cheap dual-operational amplifier LM358. The night marker is in fact a safety device designed to mount near obstructions in unilluminated […]
USB LED Flashlight
USB LED Flashlight presented here is a simple do-it-yourself rechargeable flashlight with built in rechargeable cell, cell charger, white light source, and a standard usb interface for overnight charging. Since the design is based on […]
PWM to Voltage Module (v1)
Late month I’d got an order from my neighboring client to build a pulse width modulation to dc voltage converter module that’s compatible with common microcontrollers and PLCs. Since it’s a fussy time for me […]
Simple Electronic DC Load
There are a number of solutions for making a simple electronic load – you only have to take a look around the web to see that. This article is a quick guide to building a […]