Projects Projects

Lithium Coin Cell Charger for Rechargeable Coin Batteries

Lithium Coin Cell Charger for Rechargeable Coin Batteries

This versatile charger has been designed to charge Lithium Coin Cell Rechargeable CR2016/CR2025/CR2032 Coin Batteries.


6 comments Tested
Temperature Controlled FAN using ATtiny10

Temperature Controlled FAN using ATtiny10

The electrons movement in electronic components lead to the generation of heat which when beyond certain thresholds, prevents some components from functioning properly and in others could lead to a catastrophic breakdown.


0 comments Tested
Mini Speaker Attached Audio Amplifier using TS4871

Mini Speaker Attached Audio Amplifier using TS4871

This Mini Audio Power Amplifier is capable of delivering 1W of continuous RMS Output Power into 8 ohms load @ 5V.


0 comments Tested

PHmeter – Arduino pH meter

pH meters are scientific instruments used for measuring the activity and concentration of hydrogen-ions in water-based solutions, with the aim of indicating its acidity or alkalinity expressed as pH values.


2 comments Tested
Chirp for Arduino – Send Data Over the Air with Sound

Chirp for Arduino – Send Data Over the Air with Sound

With IoT expanding, developers are begining to desire more communication options to facilitate the exploration of diverse IoT possibilities.


0 comments Tested
DIY Geiger Counter With an ESP8266 and a Touchscreen

DIY Geiger Counter With an ESP8266 and a Touchscreen

Several of our past tutorials looked at the possibility of building the hobbyist version of several important tools and equipment used by different categories of makers.


0 comments Tested
Tiny Reflow Controller with character LCD

Tiny Reflow Controller with character LCD

Reflow ovens are an important part of the development of PCB for electronic products when using surface mount components.


0 comments Tested
Getting started with the new ATtiny chips – Programming the Microchip’s 0-series and 1-series ATtiny with the Arduino IDE

Getting started with the new ATtiny chips – Programming the Microchip’s 0-series and 1-series ATtiny with the Arduino IDE

A few years back, Microchip/Atmel announced the release of a completely new range of chips designed to serve as replacements for their older ATmega and ATtiny ranges.


8 comments Tested
Using Long Range 315MHz RF Wireless Transceivers with Arduino

Using Long Range 315MHz RF Wireless Transceivers with Arduino

Connectivity continues to be one of the most important features of any device in recent times, even for devices that are not directly connected to the internet, the need to send data from one device to the other is an important part of the ubiquitous world being built today.


4 comments Tested
32 band Audio Spectrum Analyzer using OLED display and Attiny85

32 band Audio Spectrum Analyzer using OLED display and Attiny85

Visualizations are an important part of a music player.


3 comments Tested
Window Comparator – Window Detector with relay output

Window Comparator – Window Detector with relay output

A window detector circuit, also called window comparator circuit or dual edge limit detector circuit is used to determine whether an unknown input is between two precise reference threshold voltages.


1 comment Tested
Differential Microphone Pre-Amplifier

Differential Microphone Pre-Amplifier

The project shown here is a microphone preamplifier that provides high quality amplification, optimized for use in computers, media and mobile applications.


0 comments Tested