Shared Projects

Rotary Encoder Breakout board with optional pullup resistors.

This breakout board makes it easy to add a rotary encoder to a breadboard or panel-mounted project. If you are using something like an arduino or other mcu with internal pullup resistors to connect the A and B pins, then you don’t need to use the pullup resistors nor the VCC pin on the breakout board.

If you do use the pullup resistors, make sure to connect the VCC pin as well, or the resistors will have no effect.

Avian Monitor beta_r001_hw Breakout Board

General purpose 2x8 HUB.

This PCB is compatible with all LM78XX voltage regulators. Includes status LED (on or off), decoupling and a switch.

Prototype interface board for SparkFun AVC CarWars

Single Cell Flashlight based on Diodes ZXLD383 LED Driver - Version 1.0

STlink connects to 20 pin and 10 pin to TagConnect and FTDI Serial

Differential probe, DC-100MHz, +/-15V input, powered from a single LiPo cell with USB charging.

More details here: http://stevenmerrifield.com/diff-probe/index.html

This is a board created for a small series teaching how to use KiCad. It’s called Shine On You Crazy KiCad. You can view the entire course for free on Contextual Electronics

BOM

NOTE: I created this shared project as an example of how to link to project resources.

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Description:

The BeagleWire is an FPGA (Lattice iCE40HX4k) development platform that has been designed for use with BeagleBone boards.

Resources

• GitHub repository: mwelling/beagle-wire
• Hackaday.io project: BeagleWire
• Hackster.io project: BeagleWire
• Tindie store: Pesky Products

A1200 LED Board Prototype

Source and BOM: https://github.com/rlake/A1200LED

This design has been replaced with Version 2: https://www.oshpark.com/shared_projects/QzN0O7fN.

This is an Arduino Compatible Interface Shield for interfacing with Blushless DC (BLDC) Motors having their own 3-Phase controllers with a PWM Speed Set Input. It supports either a two-signal 90-deg quadrature speed sensor or a 3-Phase Hall-Effect speed sensor input. It has support for an optical reflectivity sensor for Zero-Position/Index sensing or it can use an external Z-Pos Index Sensor. Supports both 3.3V and 5V logic with on-board level shifters.

ERRATA: The silkscreen labeling for the ‘direct’ vs ‘opto’ modes on the Z-phase source selection jumper JP6 are backwards. The pin marked ‘direct’ is the ‘opto’ input and the pin marked ‘opto’ is the ‘direct’ input. Also, I forgot to add a ‘ground’ test-point pin. Otherwise, everything works as expected. The Z-phase optical reflectivity sensor design on this board, unfortunately, is too slow and unresponsive for most motor applications. This version has been replaced with version 2 https://www.oshpark.com/shared_projects/QzN0O7fN, which allows for a faster reflectivity sensor input design, plus supports a hall-effect Z-phase input.

WiFi Blinds Debug Module

WiFi Blinds Module

RTC controlled 4ch relay with LCD display and basic UI (1 temp switch for cycle start attached to digital input, 1 rotary encoder for current cycle changes)

Test Board