A little bit of history The first jar clock I created was added to hackaday in 2016, almost four years ago. It was actually a design from 2012: https://hackaday.io/project/18657-jar-clock It was not the only jar clock I created (you can check my other...
Each of the FlexAR coil is switched on/off using a generic NPN PN2222A transistor (with 1K resistor on the base). This is the latest code I used to drive it. Very touchy, you may or may not be able to replicate my resultconst byte magnetPins[]...
Originally I wanted to make my own PCB and figure out the ribbon pins for the stock keyboard, but I'm too lazy and cheap for that. The next idea was to take the Anne Pro 2 I use every day and see if I could slap the Pi inside there. Unsurprisingly, there...
First of all, to make the doorbell talking with the guests after an interaction, I generated voices from texts for each occasion I wanted the doorbell to talk. You can get more information about how to create voice files over text files in the following...
We are a newly established hackerspace located at Prague - Jeseniova 212. We tend to create a place for creative people, that are interested in electronics, art, and SW.
This inexpensive receiver is capable of receiving the entire radio broadband spectrum, from 200KHz up to 108Mhz.If you are using a SI4735-D60 or SI4732-A10 based circuit, you can also use this sketch to add the SSB functionality. ...
That's tracking receipt number # 1 in Indonesia Our service makes it easy for senders and recipients of packages to find out the status / position of the shipment. Every day hundreds of thousands of receipt numbers from various delivery couriers are...
I often need a DC-DC bias supply for my projects that supplies a few outputs, typically 5V & 12V, only a few watts, and most often non-isolated. There are a lot of COTS choices in this range with unit costs under $20.00 but I often find that they don't...
The Vectron 65 is a 6502 CPU-based breadboard computer. It supports VGA output, keyboard input, boots into a BASIC interpreter, and has lots of GPIOs. This computer is a much-upgraded version of my original Vectron 64 computer. Specs 65C02 CPU clocked...
Full details including videos and sound samples can be found at https://treefallsound.com and the pi-Stomp wiki Quick overview pi-Stomp is a DIY platform for guitar, bass and keyboard processing. The heart of the software is the open source MOD host/ui...
1. Address area and switches The operation panel has been simplified to realize the first concept, and the toggle switches for address setting are 10 bits. So, the memory space is only 1 kbytes. I thought that I could still execute a simple machine language...
Background Story I wanted to measure the magnetic field B of this permanent magnet, to see if it's strong enough to use for DYI NMR (Nuclear Magnetic Resonance). Theory The idea was that most of the magnetic field lines are concentrated between the two...