Raspberry Pi Digital Clock with 16×2 LCD
Raspberry Pi based Digital Clock with 16×2 LCD display is a relatively simple project.It requires only a small set of components and can be completed in less than an hour. Previously I’ve published similar designs based on other popular platforms ...
PIC16F Development Board
In this post I'll show a more general approach for circuits prototyping. Instead of building each individual design to validate its operation why not to design a basic PIC16F877A based Development Board. Current design have all the necessary features of ...
PWM Fan Controller
Pulse Width Modulation (PWM) is very common technique for controlling cooling fan speed in Desktop PC. In this project PIC16F877A based Pulse Width Modulation controller was built and tested with 2 fans. 80 mm Coolink SWiF2-80P PWM Fan and Arctic Cooling ...
PIC16F877A Digital Clock
This is PIC16F877A microcontroller based digital clock with 7-Segment display. For this project LTC3710HR was used, however the schematic can be easily adjusted to incorporate larger displays.LTC3710HR is 0.3 inch quadruple digit multiplex common cathode display.Main consideration for choosing the display ...
Stepper Motor Interface PIC16F
This article shows a basic interface between PIC16F microcontroller and a unipolar stepping motor using an assembly code. For programming the MCU you'll need PICKIT2 or PICKIT3 device. Similar design for Arduino platform can be found at this link. Instead ...
Arduino Thermometer LM35
LM35 is a temperature sensor that outputs a voltage proportional to the surrounding temperature in centigrade. In this post I’ll show how this device can be connected to Arduino MEGA board to build a thermometer that shows the current temperature ...
Waveform Generator using Raspberry Pi
Simple Waveform Generator based on Raspberry Pi and DAC converter MCP4725 is the topic of this post. It can generate 3 types of signals. Sine, Square and Triangular waves. There is also a basic GUI to control its operation. See ...
RFID Security Access Using Arduino
In this post I’ll show you how to build a RFID reader for security access based on Arduino MEGA board. The code I've used is a modified version of a design that was published at Arduino project hub. I added ...
Raspberry Pi 3 Digit LED 7-Segment Countdown Timer
Multiplexing 7-Segment display scheme with Raspberry Pi as described here can be used as a basis for more complex projects. By adding 4x4 keypad matrix and replacing individual 7-Segment displays with a common anode 4 digit 7-Segments module a simple ...
LED Controller
Light emitting diode (LED) Controller was built using PIC microcontroller and LM317 regulator. Comparing to traditional light sources led illumination should provide more efficient lighting also giving you a possibility to choose desired wavelength. 48 white diffused LEDs connected in parallel ...
