• Touch button

    matt thurstan • 07/10/2020 at 22:50 • 0 comments

    I initially started off using a nice little round touch button with a TTP223 chip.

    But after accidentally pushing the soldering iron through the chip whilst setting the jumpers I bought some other TTP223 chips on little rectangular boards which are slightly easier to solder.

  • Wood veneer

    matt thurstan • 07/10/2020 at 22:43 • 0 comments

    When ordering wood veneer from the internet, try and find a vendor that will send you the veneer with some packing so it doesn't arrive like this...

  • Max7219 LED matrix

    matt thurstan • 06/18/2020 at 19:48 • 0 comments

    I used 5x Max7219 LED matrices for this project. During testing I had issues with LED rows dropping out or LEDs going off and on. It turned out that while daisy-chaining the LED matrices together, power drops after 4 matrices. I solved this by powering the first 3 via the initial cables, then adding a separate power line for the last 2. 

    ...now I know why they are sold in packs of 4.