Shared Projects

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

The BOM and schematic can be found on GitHub

I do not receive any commission if you order boards via OSHPark, but if you feel so inclined you can make a donation

This unit, based on an Arduino module, provides the same capabilities as an NCE Auxiliary Input Unit. Fourteen inputs are available to report the position of turnouts or for connection to block occupancy detectors or other devices

Solar switcher board- D36V6F with Vmpp capability

For Reptile Dragon Talon WS2812B

Better than Filter 1

Converts the active-high button outputs and moves some pins around, allowing an Atari 7800 Proline stick or gamepad to work as a Sega Master System controller. This is particularly useful if you want to use it with a USB adapter such as the Daemonbite Sega adapter.

BOM: R1,R2: 1.8K R3,R4: 270 Q1,Q2: 2n4401 NPN transistor

The connectors are typical solder cup DE9 male / female and are attached by straddling the pins on either side of the board. This adapter is intended to fit perfectly inside a DE9 gender changer hood.

This project is released under the CC0 1.0 Universal license.

Project files and assembly instructions are available in the GitHub repo.

A microcontroller board, based on an ATtiny414, that can accommodate a range of different Adafruit and AliExpress colour TFT displays.

See http://www.technoblogy.com/show?3JCM.

Version 1 of the RC LED controller for Dave.

Board for Wifi Relocation

With 3.5mm Screw Terminals

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

The BOM and schematic can be found on GitHub

I do not receive any commission if you order boards via OSHPark, but if you feel so inclined you can make a donation

v1.0.0

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

The BOM and schematic can be found on GitHub

I do not receive any commission if you order boards via OSHPark, but if you feel so inclined you can make a donation

• Fixed the accidentally joined Vin pin and 3v3.
  iCEHax40 : breakout board for Lattice iCE40LP1K-CM36. 0.4mm pitch BGA. With on board Vcore 1v2 and 3v3 LDO (AP7312-1233FM-7).

Plus on board Flash storage to store bitstream with all SPI pin breakout to user via pin header.

This matrix display board is designed to run a 24x8 LED matrix for a personal clock project. I am using the MD_Parola library with HARDWARE_TYPE MD_MAX72XX::FC16_HW to run the display over an SPI bus.

Key components:

• 3X Miniature Ultra-Bright 8x8 White LED Matrix from Adafruit

• 3X MAX7219CWG+ IC DRVR 7 SEGMNT 8 DIGIT 24SOIC

• 3X RES 10K OHM 1% 1/4W 1206

• 3X CAP CER 0.1UF 50V X7R 1206

• 1X CONN HEADER R/A 5POS 3MM

Unfortunately the 7-segment drivers and LED matrices aren’t cheap so stuffed boards run over $50 each. Would be cool to see a lower-cost version of this concept shared.

With some minor customizations using matrix.addChar() to the ; and 1 characters, I can fit all 12-hour times on the 24x8 matrix. My code uses charOneThin for the leading one and alternates between charSemicolon and charSpace for the flashing hour-minutes separator.

uint8_t charSemicolon[] = {1,36};
uint8_t charSpace[]     = {1,0};
uint8_t charOneThin[]   = {4,130,255,128,0};
uint8_t charOne[]       = {5,0,130,255,128,0};
uint8_t charTwo[]       = {5,198,161,145,137,134};
uint8_t charThree[]     = {5,66,129,137,137,118};
uint8_t charFour[]      = {5,15,8,8,255,8};
uint8_t charFive[]      = {5,79,137,137,137,113};
uint8_t charSix[]       = {5,126,137,137,137,114};
uint8_t charSeven[]     = {5,3,1,225,17,15};
uint8_t charEight[]     = {5,118,137,137,137,118};
uint8_t charNine[]      = {5,70,137,137,137,126};

Version 1.1 of the BrewPi-ESP8266 SMD board. Built for LOLIN D1 Mini, with on-board SMD level shifter.

My first board ever. Each board is a one-channel buffer for driving headphones.