Content for Project

AI thermal camera for safe camping (Seeed+Helium+AWS) (V2)

“TinyML model running Wio Terminal can identify if animal or human is approaching even in the dark, sends data to Helium LoRa network to AWS. In the previous project, I used Wifi connection to send tinyML inference data to AWS …

AutoStrap - a Self Tightening Strap

“Hello world! The AutoStrap was created to get rid of the hassle of tightening straps that are put on any part of your body. Just like the shoes from Back to the Future, you simply push a button and the …

CircuitPython on Raspberry Pi (Bare Metal / No OS)

“The Raspberry Pi single board computers (SBCs for short) are normally used with the Raspberry Pi OS. This is great for gaming and web browsing, but isn’t designed for microcontroller-like tasks. Tasks like reading I2C sensors and SPI devices …

CO2 Level Indicator (4x7 Segment RGB LED Manual Calibration)

“This DIY project shows you how to make your own CO2 level indicator, which shows you CO2 concentration (PPM - parts per million) when button is pressed and always on RGB LED shows constantly how good or bad your surrounding air …

DC Motor Controller using Relay and MOSFET – Arduino Interface

“The project presented here is a low-cost solution to control high power brushed DC motor speed and direction. Traditional DC motor controllers are based on solid-state circuitry known as H-Bridge. Here we have made an H-bridge configuration using high current …

Debugging an Arduino project with GDB on Classic ATtiny and Small ATmega MCUs

“A tutorial for people who finally want to debug their Arduino projects that run on AVR MCUs using the GNU project debugger GDB The current Arduino IDE does unfortunately not support debugging. Even the new beta version supports debugging only …

Desktop Analog Spectrum Analyzer

“This spectrum analyser with 10 channels uses an analog back-end to analyse the incoming signal from line-in or microphone. Acrylic display. The analogue back end of this 10 channel spectrum analyzer uses 10 band pass filters to divide the input …

Dual 40W Audio Power Amplifier with Mute

“The stereo audio amplifier project shown here is capable of delivering typically 40W per channel continuous average output power into an 8Ω load with less than 0.1% (THD+N). The project is built using an LM4766 chip from Texas …

Dynamite Kitchen Timer

“An interesting twist on a kitchen timer. A few weeks ago, I picked up some 20mm PVC pipe that someone had put out for council pickup. On the journey back home, I wondered what I could make with it. This …

Edison Radio – Best Internet Radio ESP32 – Arduino

“This project is a tribute to Thomas Edison and it’s an internet radio Thomas Edison was a great inventor who, amongst other things, improved the microphone for telephones by developing a carbon microphone. In ways, more than one, Edison …