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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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32 Followers
8 Following
6 Projects
190 Likes
j-m-hopkins
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This user joined on 09/10/2014.

23.7k
645
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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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Open Woodwind Project - Teensy Pocket MIDI Synthesizer
Project Owner Contributor

Pocket Synth

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

NEDONAND homebrew computer

shaosSHAOS

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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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236
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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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ESP8266 websocket html5
Project Owner Contributor

ESP8266 websocket

willem-woutersWillem Wouters

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My goal for this project was to use off the shelf components to build a real-time rocket altimeter on steroids at a reasonable price.
Project Owner Contributor

Rocket real-time transponder and GUI

walter-dunckelWalter Dunckel

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This is a scratchpad project to store ideas about building a polyphonic synth around a teensy 3.6
Project Owner Contributor

Teensy 3.6 Synth

scottjfaulknerScottjfaulkner

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Actively stabilized model rocket by means of a motor gimbal, originally designed for launching a rocket from a high-altitude weather balloon
Project Owner Contributor

Project Rockoon

julian-costasJulian Costas

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Type at 300 words per minute!
Project Owner Contributor

Steno Keyboard

dehipudeʃhipu

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A 12-bit TTL-based Microprogrammed Computer
Project Owner Contributor

STUPID Computer

steve-tonerSteve Toner

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Makers and Environmentalists collecting shoreline debris using a robot platform
Project Owner Contributor

Robot Missions

ekEK

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A modular system for multimodal hands-free music control, wind instrument development and general human computer interaction.
Project Owner Contributor

Multiwind

chris-grahamChris Graham

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An upconverter that enables listening to (V)LF stations using a standard HF communications receiver
Project Owner Contributor

(V)LF to HF upconverter

eliaElia

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An electronic midi harmonica
Project Owner Contributor

emonica - MIDI Harmonica

john-lassenJohn Lassen

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A beginner project exploring the capabilities of the ESP8266 with a WiFi-controllable tank robot
Project Owner Contributor

ESPtank

benjamin-broceBenjamin Broce

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Made from 15mm Plywood and 12mm OSB3, powered by a Metabo KS55 TS hand circular-saw and a Metabo OFE 738 router.
Project Owner Contributor

Workbench MK1

npnNPN

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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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