While looking at some LED facemask projects online, I came across a neat new flexible RGB LED matrix with BLE connectivity. It has 32×16 RGB pixels but the mobile app it uses will only send full-on primary color combinations, i.e.… Continue Reading
A DIY wristwatch platform that uses Fitbit Blaze watchbands. Based on the Arduino Pro Micro. What it’s made of Fitbit Blaze wristband Custom 3D model made in Autodesk Fusion360 Custom PCB made using <TBD CAD pkg> and fabricated at OSH… Continue Reading
What it is A simple end table design, so I can get a pair of desk lamps and complete my life. What it’s made of Soooo I started out designing with classic “black steel” or “malleable iron” pipe: 1/2″ diameter,… Continue Reading
Background I live in New York City, and it gets hot/humid as balls here. I’m OCD about natural light, i.e. I hate blocking my windows with a huge/ugly air conditioner. I’m OCD about electrical efficiency, i.e. I hate paying to… Continue Reading
What it is An Excel spreadsheet that helps calculate positions of SMD pads when creating footprints for use in EAGLE. EAGLE Footprint Scratchpad This sheet was used to create a footprint for the EByte E73-2G4M08S1C BLE module based on the… Continue Reading
What it is A Python script that runs periodically (in a CRON job) to automatically download files that are ready in your Bitport.io account, and are not yet in your local media folder. Resources https://bitport.io/api https://rapidapi.com/blog/how-to-use-an-api-with-python/ https://stackoverflow.com/questions/23347056/what-is-a-callback-url-in-relation-to-an-api
After installing the LXQt Debian image from eLinux.org, then Pi-Hole, then Docker in order to run Home Assistant, I quickly ran out of space on the onboard 4GB eMMC. Freeing eMMC Space Backed up the eMMC using this script <link>.… Continue Reading
You have GOT to be kidding me. All that work to replace a +15v LDO and my stereo takes a dump again a few months later. +15v shows ~0.75v when powered up. Remove the +15v LDO, check operation of just… Continue Reading
I recently got a pile of “J5019” USB battery charger-booster boards from AliExpress, and decided to apply one of them to a work project. We had a high-detail, light-up demonstrator of our product made that looked really nice. It even… Continue Reading
For several years now, my Marantz SR8500 A/V receiver has randomly refused to power on from standby, and occasionally kicks out of operation. I think it has something to do with the ambient temperature and humidity, which has been outta… Continue Reading