This is an electrically isolated CANBUS adapter for your Raspberry Pi. Even if you screw up the connections somehow, nothing will be damaged. It also fits within the normal Raspberry Pi footprint, meaning that you can use it with most enclosures.
The board was designed with KiCAD and the design files are on GitHub:
“Occasionally I see a new product or microcontroller development board that really sparks my interest. That’s what happened with the Adafruit Feather line of boards. They pack a lot of punch into a small footprint, especially when you consider the fact that LiPo charging is built-in, as well as Wi-Fi, Bluetooth, or an SD card on some of the variants.”
Dan designed a FeatherWing that combines a GPS and 9DOF IMU sensor:
“LoRa is an ultra-long range wireless technology that uses sub-GHz ISM bands. It allows the interconnection of small, low-power sensor nodes and Internet of Things (IoT) devices. There are many LoRa transceiver modules on the market from manufacturers such as HopeRF and MicroChip.”
The apertus° project is based on software free to be used for any purpose, free to be studied, examined, modified and redistributed – which includes distributing your modified versions. Hence, products and services developed by apertus° are almost exclusively released under GNU General Public License V3 . * Documentation provided is licensed under the Creative Commons License and the hardware under the Cern Open Hardware License .
For example, their alpha-hardwarerepo contains Axiom Alpha prototype hardware source files (electronic schematics, documentation, PCB layouts, etc.) including this handy debug board designed with EAGLE:
A very small PCB sporting 64 LEDs that connect to most FPGA development boards (like the Zedboard) with a PMOD interface. This PCB provides an easy way to debug FPGA logic with just 8 digital lines and a 4-to-16 line decoder with minimal interface logic required in the FPGA side (PL).
The vga666 by Gert is already a low cost VGA output option for the Pi. But we can do better with the Zero! First, we’ll use 16 bit output instead of 18 bit. This frees up the SPI and I2C ports with little loss in quality. The resistors can also be soldered between the Zero and the adapter, making the PCB smaller and eliminating a connector. I’ve also determined that 5% resistors are good enough: no need for higher cost 1% units. And by not using the middle row of pins in the HD15 connector, we can straddle-mount it on the PCB edge. The connector can be male, so the Zero will connect to the monitor ChromeCast style: no VGA cable needed. (This connector could even be scrounged from an old VGA monitor cable for free!)
Hand soldered 4x4x4 RGB LED cube. Uses 2.7mm x 3.4mm SMD RGB LEDs. – The cube itself is less than 1″x1″x1″ on a slightly larger custom designed PCB. – 64 SMD (Surface Mounted Device) common anode RGB LEDs. – All driven by an Arduino Nano (WITHOUT any shift registers)