These are some of the circuit boards I’ve designed. Most are for audio. Some are for control ┬ásystems.

Motor driver for Beaglebone Black

Audio Sensor Board


Sensor input board for robots

Motor driver, encoder reader and ADC for Raspberry Pi

Envelope detector / Preamp for Wrist Light

My Raspberry Beret 6-in/8-out multi-channel Audio Board for the Raspberry Pi

Raspberry Beret Board with the Teensy 3.6

Layout for Audio Sensor Board

This is a signal routing board for my robots that contains sensor inputs, accelerometer and gyro inputs, and 3.3 and 5v power distribution.


This is a dual motor driver / encoder reader for the Beaglebone Black

This board has a mono preamp and analog envelope detector. It is used for the wrist light.

This is a dual motor driver / encoder reader / 8-channel ADC for the Raspberry Pi

Layout for Raspberry Beret Multi-channel Audio Board

Audio Sensor Board


Atmega 2650 in small package design with X-Bee transmitter for wireless communication

CS_42448_2 CS_42448_1 20160208_213900 20151203_233908



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6-Channel Preamp w/Power Circuit

Screen Shot 2014-12-25 at 4.00.48 PM

Original 6-Channel Preamp

Eric Brombaugh’s STM32F29 Codec Board #2

Eric Brombaugh’s STM32F4 Codec Board #1

Screen Shot 2015-01-12 at 2.07.12 PM

A WORKING version of the six channel preamp/power supply for the robots

PowerSupplyGlove1Screen Shot 2016-02-12 at 10.51.23 PM