Redraw flicker is mostly an issue with color LCD or OLED screens, where graphics are rendered with every function call. To minimize the effect I had to use an offscreen canvas, respectively the 1-bit canvas type for the animated robot face. You can think...
In recent posts I've said that I wasn't happy with the mcu and surface-mount stuff being visible on the module's pcb alongside the through-hole stuff. I loved the way the feather looked when reversed but it doesn't have enough GPIO exposed. So I designed...
This is no less than the fourth revision of the PCB. It still uses Dr.VIP which is a standalone project and could be useful for many other projects that need a Pico with as many GPIO as possible and an HDMI socket on the board, although that idea...
Training dataset Since the capabilities of the target platform are somewhat limited, I elected to create a simplified synthetic dataset for training. I chose 1x32x32 greyscale as target resolution for the images, as this fits into 1kb footprint. The...
Trying to make [this] work with the Arduino IDE on a Wemos D1 Mini. The additional capacitor got loose, so that there were fluctuations in one row. One row seems to be dead now, after I tried to resolder the QFN chip with my soldering iron. Instead...
This is a work in progress, and will look like one for some time to come. The vehicle in question is a '96 Honda Passport (also known as the Isuzu Rodeo). For reasons unknown, the Passodeo decided to eat a spark plug one morning. Ceramics and machined...
I just had to follow the leads and trust my intuition. I had noticed that the last digits of the gPEAC moduli had a strange behaviour but I only dared to dig the matter these last days and oh boy was it worth it. I had already noticed that maximal...
Introduction In this tutorial, we will measure the water flow rate and volume using an Arduino and a Flow Sensor. In this circuit, the water flow sensor is linked to an Arduino and an LCD, which is programmed to display the volume of water that has passed...
the Vref generator can be used as a DAC (pin 25 on PIC32MX250F128B). While 4-bits of dynamic range is not going to hack it for playing back Grateful Dead albums, it is good enough for a quick sound effect or medium quality voice production. There are...
As you probably know, one of the reasons that drove us to build Watchduino in the first place was the prospect of creating a smartwatch that you wouldn’t need to think about recharging. We achieved this with the first Watchduino, using techniques like...
The CF Card was obtained on March 8th, 2017, and the CF to IDE adapter was obtained on March 9th, 2017.Just a warning: this is a longer log post compared to the others.IDE is one of those legacy technologies that you see everywhere in spite of its age....
Yesterday set up this project and filled in info to get it up to where I was at. Today started fleshing in the design decisions to get things moving further. After writing up a bunch of info for the Details Section, I think I'll use this log section...
In the first log I investigated the methods of growing bacteria, and extracting ,then purifying their PHA granules into usable plastics! A major roadblock is the usage of toxic solvents in the extraction and/or purification process. This means...
Laser Dye Project link Laser Dye Project merges alternative photography with digital fabrication by producing cyanotype (New Cyanotype and Vandyke Brown) images on sewn garments constructed from natural fibers or delicate and slightly uneven organic...
Introduction It's been quiet here for a while and it might be a good moment to provide an update describing what's been done during previous months. I've been working on Xlingtool, a plugin for GIMP based on LCD Image Converter and a new way to draw...