I had to put together one of these recently for a building and thought it would be interesting to see what I could come up with.
I'd bought a cheap RFID reader some time ago from Ebay or Amazon just to play around with and my first...
I Wanted to make a capacitive touch light switch (on/off) that would send singnals via WiFi to my automation system. The assembly consisted of a PCB for the MPR121 chip, an ESP8266 (on a NodeMCU dev board) and some LED's. This would...
I started some testing of various displays for a project I have in mind for a control panel. This time around was testing some 14 segment displays. I did some reading and it seems it's possible to drive this with MAX7221...
I'd been messing around with low DC voltage projects for some time so wanted to experiment a bit with AC dimming controlled by a microcontroller.
This experiment was with phase control (as opposed to voltage modulation).
The idea is...
I saw in a document from Atmel where they had different designs for capacitive touch sensors. The Scrollwheel looked very interesting as it should be able to not only indicate where someone is touching in respect to how many degrees...
After making something that did the same thing (see here), I found these things online and they turned out to have an ESP8266 inside that had holes in it to easily solder in some header pins for programming it. At about $10 it makes no...
I saw this guy had made this thing a little while ago so I thought I'd do a similar thing that integrates into my home automation system using an ESP8266.
So looking around online there was a few of these type of hubs available so I...
I wanted to incorporate some LED strips into my automation system and wanted to use an ESP8266 as the basis for it.
After I made it I saw on AliExpress they had something that turned out to do the exact same thing. Have a look here...
I wanted to remotely control some simple on/off things such as lamps, tv's etc. using remotely controlled relays. I first started experimenting with the good old NRF24L01+ chips. After much testing it seemed that these were not 100%...
I made this test board after I made a similar board with 10 pads (Linked here). The idea of it was to try to do the cap touch stuff directly on an arduino via a multiplexer chip (e.g. 74HC4051) before I got the MPR121 chip as in the...
I wanted to start experimenting with capacitive touch scroll wheels to incorporate into my automation system as the input for a dimmer or some such. I looked around to see what was out there and saw this thing. I decided to ma
Back when I first started playing with esp8266 stuff it quickly became a hassle to breadboard the necessary components to get one of these working. This was typically just a couple pullup resistors and then a couple switches to make...
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