Download: lg-lpx-m930-m935

Download: aiwa-tv-at215

BIP Electronics Labs 3.0 – Oscilloscope
Uses sound card as input device.
Download: digitaloscilloscope

I rarely make LED lighting that is powered directly from the AC mains (120-Volt AC), due to the lack of having any inexpensive AND safe enclosures for the circuitry. While I was gathering some old failed CFLs one day with the intention to recycle them, I realized that the body of CFLs (aka the ballast [...]

The goal of this project is to create a device that is capable of outputing VGA signals to a CRT monitor inorder to display figures, text and characters.
Timing is a core essential in this project. If the signal is off by even 1 microsecond, the signal synchronization with the CRT display will be lost [...]

Here’s a PCB design for a bare bones PIC16F877 development board. All you need is a 4mhz crystal, two 22pf caps, one 4.7k resistor, and eight 470 ohm resistors, a 7805 regulator (not necessarily necessary, read below), and some LEDs (you don’t need to put all 33 LEDs on, just as many as you need [...]

Download eprom: beko-14c2m03-shassis12.1

GSM call alarm is a device that will call a destination number via Siemens or Ericsson GSM phone (19200 bps RS232). It has 1 sensor input and another input – state (stanje). If state input is = 0V than the device is “active” and it monitors the sensor input. The device is deactivated when state [...]