Projects Projects
RS232 – MAX232 Interface Module
This project is a RS232 Interface Board based on MAX232 IC.
Colpitts Crystal Oscillator
This project is a Colpitts Crystal Oscillator Description Firstly, I suggest you to read the article in ARRL Handbook 2015, Chapter 9 – Oscillator Circuits and construction.
USB to Serial converter using FTDI FT230X
This USB to serial converter project is easy to build, it is simple and inexpensive.
One Channel Relay Driver
This project is an one Channel Relay Driver suitable for a variety of projects.
8 Channel Relay Board
This project is a general purpose 8 Channel Relay Board.
Electronic Toggle Switch
Description This circuit is based on CMOS CD4013 Flip Flop IC.
Dot matrix LED running display v2.0
Features LED matrix display 40×7; Display of clock, calendar, inside and outside temperature, custom text massages; Automatic Daylight Savings Time; Capability of keep the real time clock works correctly for more than one week without power supply.
USB to Serial converter using PL2303SA
This USB to serial (TTL) converter project is easy to build, it is simple and inexpensive.
USB to RS485 Adapter
This is a simple USB to RS485 bus adapter.
Toggle ON / OFF Switch with a single push-button
This project describes how to build a “soft touch” switch.
Solar Mailbox project
The purpose of this project is to develop a self sufficient Mailbox (real one) that will be powered only by the sun and that will display the number of the house, but only in accordance with the battery level.
MAX6953 Development board
The MAX6953 from Dallas Maxim is a compact cathode-row display driver that interfaces a microprocessor (like PIC or AVR) to four 5×7 dot matrix LED display trough an I2C compatible serial interface.