I've uploaded the SPI Flash schematic to git. I'll do a video discussing this schematic & the connections between the Flash and the FPGA device @ the top level and how that ties into the backend Arduino and any other top-end boards you might...
3D Top - with components (computer generated) 3D Top - without components (computer generated)3D Back - with components (computer generated)Filled TopFilled BackUnfilled TopUnfilled BackYou get the KiCad files from git repo here.2 Layer design, while...
Now I have added the 193th LED at the top of the tree. A WS2812 8mm LED from Adafruit, which I have ordered a long time ago for testing purpose. After some try and error I figured out, that this LED needs RGB byte order instead of GRB like the WS2812...
After thinking, it will be preferable to remove the 1V8 and 2V8 from the bottom PCB. They are used by the RPi CM, and there is risk if IME perturbations.The alternative is that the PCB BOTTOM provides only filtered 3V3 and 5V0. The DC/DC 1V8 and 2V5...
I assembled the following parts of the PCB TOP:- the SAME70-M1/M2 circuits- the headers of the xBees- the connector for front sens- the RPi Cams connectors- the Raspberry Pi compute module socket and circuit- the radio Si4464
I just received word yesterday that ColorChord made it into the top 20 for the HCI challenge. Wow, I never thought it would go that direction and I was just about to scrap it for the parts to use on other projects. Guess not :-DNow I need to dust it...
To prevent water from accidentally being splashed onto the circuitry at the top I hot glued a clear cylinder covering from an old tape container to the top of the buoy. For the side of the covering that is facing the USB opening of the Boost Converter...
New magnet mount BNC antenna assembly. The through-hole antenna mounts are great. I could weatherproof them by painting with epoxy. Or switch to a top mount SMA and 3D print a top.
So, it turns out that the wheels being as close to the chassis as they are, and the footprints of my components, I either had to go with an awkward layout or find another top plate to stack. I decided to go with the latter, and it should be here Monday....