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J. M. Hopkins

Jeffrey M. Hopkins, Amateur Rocketry, Electronics, Hardware, Musical Instruments, Programming, and more!

Lompoc, California
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33 Followers
8 Following
6 Projects
j-m-hopkins
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This user joined on 09/10/2014.

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An Electronic Aerophone with focus on usability as an instrument.
Project Owner Contributor

The Open Woodwind Project

j-m-hopkinsJ. M. Hopkins

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Experimental high power rocket with active stabilization, live telemetry, autonomous GPS guided recovery and HD video
Project Owner Contributor

High Power Experimental Rocket Platform

j-m-hopkinsJ. M. Hopkins

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A box to convert an amateur radio 70cm serial stream to telnet over WiFi.
Project Owner Contributor

70cm Serial WiFi Bridge

j-m-hopkinsJ. M. Hopkins

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A custom designed parachute to be used in autonomous rocket recovery.
Project Owner Contributor

Single Skin Steerable Parachute

j-m-hopkinsJ. M. Hopkins

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Step sequencer for 8 mute tracks
Project Owner Contributor

Eurorack Mute Sequencer

j-m-hopkinsJ. M. Hopkins

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Open Woodwind Project - Teensy Pocket MIDI Synthesizer
Project Owner Contributor

Pocket Synth

j-m-hopkinsJ. M. Hopkins

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

Hackaday.io Project

lutetiumLutetium

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Offline password keeper project created by and for the Hackaday community
Project Owner Contributor

Mooltipass Offline Password Keeper

mathieu-stephanMathieu Stephan

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Cheap, Small, Open Source Servo Controlled Robot Arm
Project Owner Contributor

MeArm - Your Robot

benphenoptixben.phenoptix

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Custom designed breadboard computer (BBC!) with bespoke programming language, full graphics, sound and SD card storage.
Project Owner Contributor

6502 Homebrew Computer on breadboard

6502nerd6502Nerd

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An exercise of connecting the ESP-12 DevKit board running nodemcu to a 4 pin I2C OLED Display
Project Owner Contributor

ESP8266 + OLED Display

pete-hoffswellPete Hoffswell

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CD quality sound processing, integrated with Arduino sketches
Project Owner Contributor

Teensy Audio Library

paul-stoffregenPaul Stoffregen

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640x480 (and 848x480!) Color VGA Video Card for Microcontrollers and Single Board Computers
Project Owner Contributor

VGA Graphics Over SPI and Serial - VGATonic

pkPK

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Arduino powered rocket stabilization system for mid to high power rockets that gets rid of the pitch over and subsequent downrange flight
Project Owner Contributor

Arduino rocket stabilization system [UD: 7/14/17]

arseniodevArsenioDev

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An MPC style MIDI controller featuring a 4x4 FSR matrix and based on Teensy 3.0, fully compatible with the Teensy Audio Adaptor Board
Project Owner Contributor

DIY USB MIDI controller MPC style

michele-perlaMichele Perla

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After the apocalypse we have to build computers from stuff we can make at home, I.E Transistors, diodes and resistors.
Project Owner Contributor

AYTABTU - Discrete Computer

matsengmatseng

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NEDONAND is 8-bit homebrew computer entirely built out of many 74F00 chips (2-input NAND gates)
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NEDONAND homebrew computer

shaosSHAOS

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HamShield lets your Arduino talk to far away people and things using amateur radio bands (Coverage: 136-170MHz, 200-260MHz, 400-520MHz)
Project Owner Contributor

HamShield: VHF/UHF transceiver for Arduino

casey-halversonCasey Halverson

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a 16-bits YASEP computer (mostly) made of DIP/SOIC chips like in the 70s and 80s... with 2010's twists!
Project Owner Contributor

Discrete YASEP

yann-guidon-ygdesYann Guidon / YGDES

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Small and light Arduino Pro Mini based wind controller with DIN-5 MIDI output and fingering based on the AKAI EWI.
Project Owner Contributor

MiniWI woodwind MIDI controller

johan-berglundJohan Berglund

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Minimalistic and easy to build USB MIDI controller, inspired by the AKAI EWI, the CASIO DH-200 and my own MiniWI.
Project Owner Contributor

TeensieWI woodwind USB MIDI controller

johan-berglundJohan Berglund

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A re-creation of the minimoog using Teensy 4.0
Project Owner Contributor

Teensymoog

pierre-loup-mPierre-Loup M.

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This project aims to build a tilt sensor that is cheap, very accurate and has a wide measuring range (up to 360 degrees).
Project Owner Contributor

A new high accuracy tilt sensor

aron-molnarAron Molnar

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The Tick Tock Timer is a School Bell timer packed with features
Project Owner Contributor

Tick Tock Timer

jasper-parkerJasper parker

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J. M. Hopkins wrote 03/08/2016 at 13:56 • point

No problem, keep the project coming. I love hackaday.io for this reason

  Are you sure? yes | no

Benjamin Broce wrote 03/08/2016 at 03:03 • point

Thanks for the Skull on my ESPtank (keep an eye out for the low-cost smartwatch I'm working on)! I love the projects you have up so far!

  Are you sure? yes | no

ben.phenoptix wrote 08/07/2015 at 21:40 • point

Thanks for the Skull on the MeArm project J.M! Looking forward to seeing more of your work!

  Are you sure? yes | no

Jasmine Brackett wrote 09/11/2014 at 19:01 • point
Hello Jeffrey, welcome to hackaday.io. It's great to see new members posting great projects straight away. Thanks!

  Are you sure? yes | no

J. M. Hopkins wrote 09/11/2014 at 21:54 • point
Thanks!
I like to keep a fairly steady pace on my projects, but I'm out of the States for a few months which mucks up my ability to keep going at the project like I'd like to. So you'll see updates in documentation, but not a lot of project advancement until early next year. Sometimes real life can get in the way of hobbies...

  Are you sure? yes | no

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