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“The use of LED Matrix Max7219 is quite common nowadays. You can use it for many different applications such as: Clocks, Scrolling Text, advertising… However, the sample code related to Max7219 I found relatively difficult for newbies, so I tried …
“A few years back in high school I worked on building the robot described in the 1979 book “How to Build Your Own Working Robot Pet” by Frank DaCosta. The robot was controlled by an 8085 (an 8-bit microprocessor), and …
“It’s a display in front of your eyes that runs Linux. You can do pretty much anything with it. This is a project that I’ve been working on and it’s a pair of Raspberry Pi Zero W …
“A PID controlled DIY reflow hotplate using an Aluminium PCB to solder SMD components Story : Last time I made a reflow soldering hotplate from a regular clothing iron. And it works pretty great. The only issue is it uses mains …
“Control two LEDs with IR Remote, IR Receiver and Arduino. This project shows how to control two LEDs with IR Receiver and Arduino. An Infrared (IR) transmitter uses light to transmit signals to the IR receiver. The light is in …
“I recently did a PC power supply teardown so I figured it would be interesting to go deeper and see what happens inside the power supply’s control IC. The die photo below shows the UC3842 chip, which was very …
“- I modified DOSBox to extract the frequency/delay value pairs of the Monkey Island PC-Speaker songs. - I then used Huffman compression to squeeze all music inside an ATtiny85 (512 bytes of RAM, 8 KB of flash) - Once I managed …
“Probability is an important concept in Physics since many physical interactions can have multiple outcomes. This project is a hands-on exhibit to allow students to see the results of dice rolls to get a better intuitive feel for probability and …
“This is small power (about 14~18Watt) audio amplifier utilizing TDA2030 chip IC which is now obsolete. The TDA2030 was manufactured by STMicroelectronics that is joint electronic company between France and Italia. But analog audio device production had been stopped …
“In this simple tutorial we will learn how to turn ON/OFF 4 LEDs with a 433MHz RF Remote and Arduino. What you need: - Arduino UNO (or any other Arduino) - Jumper wires - 4 X LED - 4 X 1K ohm Resistor …