Introduction This project demonstrates an AVR based DC Motor Controller using the ATmega16 microcontroller in Proteus simulation. It is a simple but useful microcontroller project for learning how PWM can control the speed of a DC motor. The circuit uses the ATmega16 to generate a PWM signal and drive a motor through a transistor-based motor […]
AVR Based DC Motor Controller using ATmega16 with Proteus Simulation Read More »
Introduction This project demonstrates an Adafruit Trellis Shield latching keyboard test using the ATmega328P controller in a Proteus simulation environment. It is a simple but useful microcontroller project for learning how a keypad-style LED button matrix works with an Arduino-compatible AVR controller. The system reads button presses from the Trellis keypad and toggles the matching
Adafruit Trellis Shield Latching Keyboard Test using ATmega328P with Proteus Simulation Read More »
Introduction This microcontroller project demonstrates how to draw bitmap images on a TFT LCD using an ATmega328P-based Arduino AVR setup. The image file is stored on an SD card and loaded directly onto the display through the SPI interface. It is a useful Proteus simulation for learning how SD card storage, TFT LCD control, and
Bitmap Drawing on TFT LCD using ATmega328P with Proteus Simulation Read More »
Introduction Expanding I/O pins is a common requirement in many microcontroller projects, especially when working with limited-pin devices like the ATmega16. This project demonstrates how to use the 8255A Programmable Peripheral Interface to control multiple LEDs using fewer pins. Using Proteus simulation, this design shows a practical approach to extending digital I/O capabilities in embedded
I/O Expander with 8255A using ATmega16 with Proteus Simulation Read More »
SmartSpin2K is an open hardware and software DIY module that converts BLE signals from a cycling APP (like Zwift, FulGaz, RGT, Sufferfest, etc.) and uses the information they broadcast to increase and decrease resistance on a spin bike by rotating the resistance knob with a stepper motor. SmartSpin2k receives BLE signals from common cycling peripherals such
Spin Bike Controller Read More »
Last time I shared how to make a Mini DSO with MCU. To know how to built it step by step, please refer to my previous instructable: https://www.instructables.com/id/Make-Your-Own-Osc… Since many people are interested in this project, I spent some time upgrading it overall. After upgrading, the Mini DSO is more powerful. Specification: MCU: STC8A8K64S4A12 @27MHz Get
Upgrade DIY Mini DSO to a Real Oscilloscope With Awesome Features Read More »
Project Background: In 2015, I started a kickstarter project of a miniature 3D zoetrope DIY kit. The next year, I started the version 2 of said project by further simplifying the kit and reducing its manufacturing cost. Sadly, both crowdfunding failed, but this is how the 3D zoetrope looks. *Zoetrope: a 19th-century optical toy consisting of
BOXOI – an Open Source Miniature 3D Zoetrope DIY Kit Read More »
I’ve been looking for an ESP8266 (ESP-12) socket for a long time, and the way I see it, It had to have all of these properties: 100% Breadboard Friendly No soldering required Snap Fit and snugly hold the ESP8266 DIY from everyday household items Easy to print Easy to build I found a few solution on Thingiverse.com,
DIY ESP8266 ESP-12 Socket – Snap Fit, Breadboard Friendly, No Soldering Read More »
Hardware components: Atmel ATtiny13a CHF 1.25 × 1 Osram SFH409 IR Diode CHF 0.75 × 1 Battery holder CR1220 CHF 0.65 × 1 Coin Cell Battery CR1220 3V × 1 Push Button CHF 0.25 × 1 Resistor 15Ω CHF 0.07 × 1 Micro Slide Switch SK12D07 CHF 0.28 × 1 Hand tools and fabrication machines:
DIY Canon IR Remote Read More »
Atmega fusebit doctor, as name says it, device for repairing dead Atmega and Attiny family AVRs by writing fabric fusebits. Most common mistakes or problems are a wrong clock source (CKSEL fusebits), disabled SPI programming (SPIEN fuse) or disabled reset pin (RSTDISBL fuse). This simple and cheap circuit will fix you uC in a fraction
How to fix dead atmega and attiny avr chips Read More »
