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.

Radiometrix Breakout

Data Board with test points!

pcbs for there U glow workshops

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 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

Pi Pico Apple IIe emulator board. https://github.com/pyrex8/pico-iie

Board to drive AC contactors. 5/2/2022

Simple breadboard compatible board allowing evaluating MAX5715 Digital to Analog Converter (DAC).

Features

• 4 DAC channels
• SPI Interface
• Reference input or output (configrable referece outputs: 2.048V, 2.5V and 4.096V)
• exposed all pins of MAX5715 chip
• jumper for optional connecting LDAC to Ground permanently
• 2.7 to 5.5V analog supply
• 1.8 to 5.5V separate digital supply for I/O

BOM

Simple breadboard compatible board allowing evaluating SMD optocouplers. While it was designed for use with Renesas RV1S9060A, it can be used with any other optocoupler in compatible package.

BOM