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Chris Johnson

Electrical engineer specializing in hardware and firmware design. Branching out into Hydroponics.

Connecticut
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27 Following
2 Projects
chris-johnson
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This user joined on 05/24/2016.

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A mist-based tower system for growing leafy green vegetables
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The Little Green Tower

chris-johnsonChris Johnson

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A Raspberry PI HAT designed to control an aeroponics tower system
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SpiroBoard Aeroponics pH / EC / Motor Controller

chris-johnsonChris Johnson

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A place for Tindie sellers and the community to meet and stretch their legs
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Tindie Dog Park

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Hobby brushless motors are incredibly cheap and powerful. However we need a way to make robots out of them. ODrive is that way.
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ODrive - High performance motor control

oskar-weiglOskar Weigl

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Always jealous of people who could afford big Nixie Tubes, I rolled my own alternative with WS2812Bs and laser cutting!
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"Lixie", an LED alternative to the Nixie Tube

lixie-labsLixie Labs

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Follow for the 'Hacklet' and latest news about hackaday.io
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Hackaday.io Project

lutetiumLutetium

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AMS's new AS7265X 3-chip set promises a compact, 18-channel, 20 nm FWMH spectrometer for less than $25
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Compact, $25 spectrometer

kris-winerKris Winer

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8 GHz BW, up to 1 TS/s ET Sampling I have ceased active development on this project. Please don't ask.
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8 GHz Sampling Oscilloscope

ted-yapoTed Yapo

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Very recently I was so impressed by a Japanese modern artist who draws golden fish in epoxy. I cannot draw but make circuit. Why not!
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Enclose them all in super clear epoxy!

microwavemontmicrowavemont

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A small and inexpensive kiln for melting metals and firing clay
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RepKiln

matt-mosesMatt Moses

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A neat Tree like decoration based on the RGB LEDs.
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RGB Tree

paczkaexpressPaczkaexpress

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A 1" by 1" 20msps Oscilloscope based on the PIC32MZ
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1 Square Inch 20msps Oscilloscope

mark-omoMark Omo

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Single rotor, "human-safe", selfmade ball-drone with air vanes for position control
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benjamin-prescherBenjamin Prescher

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The smallest wireless IMU - Dime sized, ARM Cortex M0+ with 9-DoF IMU, temperature and altimeter. Supports ZigBee and Mesh networking.
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FemtoBeacon

femtoduinofemtoduino

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40 led flashing 3D space ship model
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PCB - 3D Startrek Enterprise

bobriciusbobricius

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Making the HX711 into a more general purpose differential data acquisition module with an interface to Raspberry Pi.
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A Cheap 24-bit Differential ADC for Raspberry Pi

bud-bennettBud Bennett

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I2C OLED connected to an Attiny85 and a Charlie-plexed button matrix
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Skeleton Attiny85 Handheld

davedarkodavedarko

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Use a USB OTG cable with Android devices for Serial, REPL, and a basic code editor for use withCircuit Python Boards.
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Android Circuit Python Editor

foamyguyfoamyguy

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Chris' Really Awful Pi: so bad, it's good
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CRAPi2040

chrisChris

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Simple Oven for Blowing Bubble Canopies from Acrylic Sheet.
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Plastics Blow Oven

michael-barton-sweeneyMichael Barton-Sweeney

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A super simple, inexpensive method to make layer synchronized time lapse movies of 3D prints.
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Layer Synchronized Time Lapse of 3D Prints

mark-rehorstMark Rehorst

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Kris Winer wrote 10/16/2018 at 16:22 • point

Thanks for following my Compact, $25 spectrometer project!

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