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 »
This project is a companion to my other Home Automation projects Smart Data- Logging Geyser Controller and Multi-purpose-Room-Lighting and Appliance Controller . It is a pool side mounted monitor that measures the pool water temperature, ambient air temperature and barometric pressure. It then displays the pool water temperature on a local LED bargraph and transmits via WiFi/MQTT to a
MQTT Swimming Pool Temperature Monitor Read More »
Clock generator I recently build a pulse generator and it does its job well. It produces pulses of variable length and at several frequencies. But the number of frequencies it can produce is limited and for many jobs the length of a pulse is less important than its frequency. E.g. when you are testing a
Clock Generator With Si5351 and Blue Pill Read More »
Binary displays are very popular for clocks so it looked like there a gap waiting to be filled in the measurement area with an instrument that displayed its results in a Binary format. As result I decided that a DVM would be a suitable project to be given a Binary makeover. The Microbit has the
Controlling your computer by using hotkeys and macros is a great way of speeding up your workflow. Unfortunately a device dedicated to doing that (for example Elgato’s Stream Deck) will cost you about $120. That is why I designed FreeTouchDeck. FreeTouchDeck will cost you about $20 (including shipping!) to make. It uses an ESP32 and
A Bluetooth ESP32 TFT + Touch Macro Keypad) Read More »
We made a Touch-Free Gumball Machine Using a micro:bit, a Crazy Circuits Bit Board, a distance sensor, a servo, and cardboard. Making it and using it was a “BLAST”! ???? ???? When you place your hand in the base of the rocket, a distance sensor hidden inside detects your hand and the machine administers a
Hands-Free Cardboard Gumball Machine Read More »
Introduction This is a tutorial of my custom made MIDI handpan with 19 volume sensitive tonefields, Plug’n Play USB capability, and a lot of easy to use parameters for adjusting the pads for your individual needs. It’s not a design award winning model 😉 but it perfectly fits to my needs in practicing handpan playing
MIDI Handpan With 19 Tonefields on Upper and Down Side… Read More »
As I write this instructable it is mid winter on the Northern hemisphere and that means short days and long nights. I am used to getting up at 06:00 and in the Summer the sun will be shining by then. In the Winter though, it gets light at 09:00 if we are lucky to have
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 »
Do you face such situations when you leave your reading lights, table fans or soldering irons without switching them off and later realize that they were on for too many hours which subsequently jumps off your electricity bills? Well, if you have such a problem of forgetting things which probably most of you would have
Energy Saving Switch With Presence Sensor Read More »
