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“This timer is useful in both domestic and industrial applications. It is a countdown timer programmable in the range of 1s …. 9999s. During this time, the load is powered by a relay on the board. For repeated timings, it is …
“Here you get your own very small AVR programmer board that you can put in your keychain. Today I will build an AVR programmer based on the FabOptimus that built by Ali Shtarbanov. It’s very well documented and makeable …
“TinyCharger is an ATtiny25/45/85-based, single-cell Li-ion battery charger with selectable charging current limit (100mA - 1000mA) and an OLED display for monitoring. Hardware Power Connectors The device is equipped with a Micro-USB and a USB-C connector for …
“The Casio CP-10 is a neat calculator that has a thermal printer attached. The calculator also has a built-in clock and can do useful tasks such as printing this month’s calendar. The date rang eis also useful as …
“A system that gives my bike front and tail lights, a turn signal, and a speedometer, all in a clean and simple design. Hello! My name is Collin Wentzien, and I am a 15 year old maker and electronics enthusiast …
“This project is about building an adjustable high voltage generator (DC) from a low DC voltage supply. The voltage supply can range from 5V to over 25V (I use a 9V supply). Higher voltages can require heat dissipators attached to …
“A cute PCB alpaca with a rainbow tail and glowing cheeks. I’ve recently heard of the Micronucleus bootloader for the ATtiny85 and I wanted to try it out, so I designed this quick alpaca ATtiny85 dev board, which can …
“”Save for a rainy day,” as the saying goes. But that doesn’t mean saving money has to be boring and analog. Bring your coin box into the 21st century with this awesome DIY Arduino-powered solution. Before you begin building …
“A tiny frequency meter built using the ATtiny1614 microprocessor. Over the years, I have build a number of audio oscillator circuits using discreet components (no microprocessors). While these produce good quality sine waves, the frequency of the output is usually …
“I made an automatic 3D Printed Pet Feeder (or just dispenser, but I use it to feed my dog). I 3D modelled all that project. U can print it by yourself. All parts are down there. Basically how it works …