PWM Projects

Soldering an SMT MOSFET Driver with a hotplate using microcontroller

Soldering SMD components isn’t as hard as you might think. In fact it’s easy. If you follow this instructables you’ll soon see just what great results you can obtain at home using just a hotplate. It’s not just being able to make small circuit boards that makes SMT soldering so good it’s also a nicer

Soldering an SMT MOSFET Driver with a hotplate using microcontroller Read More »

Open Source Temperature Controller- Appliance Heat Exchanger

video Open Source Temperature Controller- Appliance Heat Exchanger Here’s a heat exchanger demo using the open source temperature controller. Full heat exchanger available here Intelligent controller, schematics, and code available here The open source temperature controller allows you the flexibility to control DC appliances based on the temperature of two thermistor inputs. The processor is

Open Source Temperature Controller- Appliance Heat Exchanger Read More »

Temperature controlled fan using PWM microcontroller

This project gives you a simple temperature controlled fan. If the difference between real temperature and the user temperature is high then the fan will run at full speed and if the difference is low then the fan will rotate at slow speed. The speed of the fan varies with the temperature. The user can

Temperature controlled fan using PWM microcontroller Read More »

Simple PWM DC motor control using MOSFET H-Bridge with AVR ATmega8

Here is a very simple project of controlling a small DC-motor (taken from an old personal cassette player) with ATmega8. The ATmega8 is having three PWM channels, out of which two are used here. PWM waveforms are fed to MOSFET (RFD3055) H-bridge. Here, direction is controlled using a two-position toggle switch and speed of the

Simple PWM DC motor control using MOSFET H-Bridge with AVR ATmega8 Read More »

An attempt to show grayscale images on an LED dot matrix display with software PWM using PIC16F877A

Introduction: This is just a time pass hobby project, I am trying to display some pictures (JPEG/PNG/BMP etc) on my 8×8 led dotmatrix display.  You can see photos of my 8×8 led dotmatrix display showing some grayscale pictures. The main thing which you may notice is that the brightness of each led depends on the

An attempt to show grayscale images on an LED dot matrix display with software PWM using PIC16F877A Read More »

Scroll to Top