Shared Projects

https://drive.google.com/file/d/1zY_z-g8Pesaivln13RggwxtNEMcsOp2J/view?usp=sharing

Simple track occupancy detector for DCC model railroads with open-collector output to interface to NCE Auxiliary Input Unit

A vertical breadboard-friendly adapter for BBC:Microbit & Adafruit Clue

An ESP32 2.45 GHz 35-j10 to 50 Ohms L-pad.

For more details please refer to https://twitter.com/mishkathebear/status/1287179090236182537

For those wishing to build their own DIY TCB Gerald Rude created this shield intended to be used with a RobotDyn Mega 2560 Pro Arduino board. It is built almost entirely with through-hole components for ease of assembly and the few SMD components are easy to solder by hand.

When you flash the firmware to your Arduino, be sure to select the “TCB - DIY Version” firmware in OP Config.

• Discussion thread for DIY TCB designs
• Eagle Board and Schematic (zip)
• Printable Schematic (PDF)
• Bill of Materials (Excel)
• Board Assembly notes (PDF)

Display driver board for the Korad KA3005P/KA3005D power supply. It can replace an original K002_V3.x board.

For more info (schematic, KiCad project files, BOM) please visit the GitHub project page: http://github.com/djedditt/ka3005p-display

https://github.com/74hc595/Amethyst

MIDI Female to Female adapter board with both DIN-5 MIDI and TRS MIDI. There are DPDT switches to choose either Type A or Type B TRS MIDI, as well as resistors and LEDs to indicate MIDI power and signal.

The rayBeacon is full-featured nRF52 based wearable, ultra-low power, multiprotocol development board designed for variety of embedded applications. Due to modular design, the device can be used to build your own production-ready appliance with minimal hardware modifications.

The revision 1.5 UFL has the same features as rayBeacon 1.5, but replaces built-in chip antenna with U.FL connector for demanding applications.

Key features include:

• Coin sized - the board is only 25 mm in diameter
• Works from a single CR2032 / CR2025 3V button cell
• Nordic nRF52 high-end multiprotocol SoC supporting Bluetooth 5.x, Bluetooth mesh, Thread and Zigbee; of your choice:
  • nRF52833: Cortex-M4F 64MHz, 512KB flash, 128KB RAM, Bluetooth® 5.1 Direction Finding, 105°C temperature qualification
  • nRF52840: Cortex-M4F 64MHz, 1MB flash, 256KB RAM, Bluetooth® 5.0, ARM TrustZone® CryptoCell cryptographic unit
• Automotive grade BOM components - ready for harsh environment
• 2 x tactile buttons IP67
• 1 x RGB LED
• 1 x infrared LED (850 nm) 0402 size
• Socket for NFC flex antenna, compatible with Nordic FPC antenna and Liard 0600-00061. Can be configured as extra 2xGPIO.
• Programmable through SWD port (removable Tag-Connect socket, on-board solder pads)
• 1.27mm pitch 2x4 receptacle to connect custom extension boards:
  • 6 x GPIO ports
  • 1 x 12-bit ADC input
  • pass-through VDD and GND pins
• 2.54mm pitch 1x8 pin header for fast breadboard prototyping; can be reused as 1.27 to 2.54 adapter
• USB interface (on-board solder pads)
• Minimal fabrication cost due to simple, two-layers only design

For detailed description, including information on custom boards and source files, please refer to the project repository on Bitbucket. Also, feel free to share your thoughts, or submit a request for a new slice or report an issue!

The rayBeacon is full-featured nRF52 based wearable, ultra-low power, multiprotocol development board designed for variety of embedded applications. Due to modular design, the device can be used to build your own production-ready appliance with minimal hardware modifications.

The revision 1.5 features better layout for manual aQFN73 soldering, and cleaner alignment of some components.

Key features include:

• Coin sized - the board is only 25 mm in diameter
• Works from a single CR2032 / CR2025 3V button cell
• Nordic nRF52 high-end multiprotocol SoC supporting Bluetooth 5.x, Bluetooth mesh, Thread and Zigbee; of your choice:
  • nRF52833: Cortex-M4F 64MHz, 512KB flash, 128KB RAM, Bluetooth® 5.1 Direction Finding, 105°C temperature qualification
  • nRF52840: Cortex-M4F 64MHz, 1MB flash, 256KB RAM, Bluetooth® 5.0, ARM TrustZone® CryptoCell cryptographic unit
• Automotive grade BOM components - ready for harsh environment
• 2 x tactile buttons IP67
• 1 x RGB LED
• 1 x infrared LED (850 nm) 0402 size
• Socket for NFC flex antenna, compatible with Nordic FPC antenna and Liard 0600-00061. Can be configured as extra 2xGPIO.
• Programmable through SWD port (removable Tag-Connect socket, on-board solder pads)
• 1.27mm pitch 2x4 receptacle to connect custom extension boards:
  • 6 x GPIO ports
  • 1 x 12-bit ADC input
  • pass-through VDD and GND pins
• 2.54mm pitch 1x8 pin header for fast breadboard prototyping; can be reused as 1.27 to 2.54 adapter
• USB interface (on-board solder pads)
• Minimal fabrication cost due to simple, two-layers only design

For detailed description, including information on custom boards and source files, please refer to the project repository on Bitbucket. Also, feel free to share your thoughts, or submit a request for a new slice or report an issue!