Radio carriers, wired network interfaces and connected controllers with two-layer source boards. Purchased modules and external hosts remain part of the original designs; ViaGrid routing and communication performance need validation.
Published open-source PCB projects
Open source · MIT Dual Isolated USB CAN-FD
A USB interface with two CAN-FD channels, isolation and SuperCAN firmware for monitoring and generating bench-bus traffic.
Open source · CC BY-SA 3.0 Feather 32u4 RFM69 Radio
A USB-programmable controller around a purchased RFM69HCW radio module, ready to exchange short sensor messages.
Open source · CC BY-SA 3.0 HUZZAH ESP8266 Wi-Fi Carrier
A regulator, boot controls and headers that make a purchased ESP8266 radio module usable as a small Wi-Fi controller.
Open source · CC BY-SA 4.0 Moteino wireless node
A low-power sensor node built around an ATmega328P and a purchased HopeRF radio module, with a documented hand-assembly and test sequence.
Open source · CC BY-SA 3.0 PyPortal Pynt Wi-Fi touchscreen
A complete Wi-Fi touchscreen controller pairs a SAMD51 with an ESP32 module for interactive network displays.
Open source · CC BY-SA 4.0 Qwiic RFID reader carrier
An ATtiny84A turns a separately purchased ID-LA 125 kHz RFID reader module into an I²C interface with scan buffering, interrupts and audible feedback.
Open source · CC BY-SA 3.0 Ultimate GPS Carrier
Read position, time and pulse-per-second signals from a purchased GPS module, with optional backup power and an external antenna.
Open source · CC BY-SA 4.0 USB to RS-485 Converter
A USB serial adapter for half-duplex RS-485 networks, with automatic transmit-enable control and several connector options.
Open source · CC BY-SA 3.0 W5500 Ethernet FeatherWing
A wired network interface that lets a separate microcontroller send and receive Ethernet traffic over SPI.
Browse these projects in the 3D PCB project directory. Open-source rows can be shallow-cloned into the git bucket. Generated board renders belong on the artifact CDN, not in git. See the hardware repository guide.