Content for PCB

Making a PCB Business Card

“Many of you may have seen the Adafruit PCB ruler (also used by the awesome Voltera). The design was actually adapted from my own design back in University! To improve on the original idea, I have created a reference business …

RGB LED Strip Controller

“A simple controller for a RGB LED strip, with independent control of color and intensity. The design is based on a simple STM32F0 microcontroller. It can handle NeoPixel and DotStar protocols, and the power supply can vary from 5V to …

Tiny and cheap lab generator

“Function generator is a rely useful tool in the lab, a simple version can be build at home, there’s a lot of examples on the Internet, some are much more complex and powerful, but this one is intended to …

1inch 100W Hot-Plate for SMT reflow

“Black Mesa Labs has been using a $20 hot plate for a year now for soldering QFN ICs to PCBs. Only issue so far has been the size ( 10?x10?x3? ) and thermal mass of the thing as it consumes …

9V/1kV DC/DC converter

“Currently I’m working on a device to electrocute home insects like cockroaches, progress is small because they are smarter than I thought, but that’s a different story. For that project I had to find a source of sufficient …

AC Motor Speed Controller using U2008B

“This low cost current feedback phase control AC motor driver based on U2008 IC, The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current …

Dual DC Motor driver using two L293D

“Dual DC Motor driver using two L293D IC. The L293D device is quadruple high-current half-H driver. The 293D is designed to provide bidirectional drive current up to 600mA a voltage from 5V to 36V. It provides 600mA +600mA on each …

UP/DOWN counter with Memory

“This is a simple digital counter with a serial rs-232 and a 7 segment display, i started this project to count items on some shelfs, but it can be used for anything, it is also, for the exception of the …

1.2V to 37V Regulated Power Supply 1.2A

“This project provides a variable output power supply ranging from 1.2 to 37 V @ 1.5 A. Uses industry populer LM317 in TO3 package for delivering variable output voltage.”

Arduino MobilePhone

“Actually there are no real reasons why one should build a (mobile-)phone by himself. Especially as the simplest phone costs actually less than doing it yourself. Nevertheless, learning is very important aspect of the assembly process. Furthermore, walking around …