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 »
In this project, I will show you how you can transform your normal doorbell into a smart one without changing any of the current functionalities or cut any wires. I will be using an ESP8266 board called Wemos D1 mini. New to ESP8266? Watch my Introduction to ESP8266 video first. Step 1: Watch the Video The video
DIY Smart Doorbell: Code, Setup and HA Integration 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 »
Why a two-wire meter cannot see a milliohm A two-wire ohmeter pushes current through a pair of leads and reads the voltage across that same pair, so it measures the device plus the copper, crimps, clip jaws and oxide in the path. Across 10 kΩ that is irrelevant. Across 10 mΩ it is the entire
Introduction The Weeboy is a portable color video game system that is not dependent on stationary displays or external power sources and features novel tilt-based control. Our purpose for designing this project was to demonstrate that a complete portable video game system could be implemented at an affordable price. There currently exists a large community
A portable, color, tilt-controlled video game system Using Atmega32 Read More »
Having done half a dozen V-USB tutorials I decided it’s time to whip up something cool. As USB keyboards were an area untouched. I decided to make a small USB HID keyboard device that types a password stored in EEPROM every time it’s attached. A new password can be generated just by tabbing CAPS LOCK
DIY USB password generator using ATtiny Microcontroller Read More »
This instructable will show you how to make a thermometer that displays the temperature of the air. It’s not the most accurate thermometer in the world, but for this price and the fact that it was homemade… This instructable will show you how to make a thermometer that displays the temperature of the air. It’s
DIY Digital Thermometer Using ATMega8 Read More »
Here is my home-made kit of ATmega32 microcontroller interfacing. The ATmega32 controller is rich with features like onboard 32kB in-System programmable flash, 1 KB EEPROM, 2KB SRAM, 10bit ADC (8 channel), SPI bus inteface, TWI (compatible with I2C bus) interface, an USART, analog comparator, etc. That’s why I’ve selected it to load my kit with
Make-Yourself ATmega32 Starter’s Kit with LCD, I2C, SPI, RTC, ADC interfaces Read More »
