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Johan Cronje

I like to build stuff

San Diego, California

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This user joined on 02/12/2015.

My Projects

Arduino Uno shield & sketch to convert the input from 32 switches to MIDI notes via Hiduino firmware

Organ Pedalboard MIDI Conversion

A modern twist on a classic musical instrument: the Virtual MIDI pipe organ

Virtual Pipe Organ

Things I've Built

Yet another ATX Power Supply

ATX power supply with a 4 port USB charger & voltage/current adjustable module. Current sensors on all the fixed voltage lines too!

Projects I Like & Follow

The 2015 Hackaday Prize

Designing an open source, modular bench power supply to rule them all.

Bench Power Supply

Hackaday Prize 2019

I didn't have enough to buy a Lab Bench PSU... So I made one.

OPEN Power

Basic energy monitor using the ESP8266 and the ATMega328

ESP8266 Current Monitor

Patrick McDonnell

This project aims at building a rather simple yet useful bench power supply for everyday tinkering.

ElbSupply - Simple linear bench supply

B3606 is a cheap MCU controlled power supply, I'm reverse engineering it and writing software to add serial port and more features.

Power Supply B3603 Alternative Firmware

Supplyframe DesignLab: 2022 Hackada…

An affordable Open Source Weather Station for Everyone

Solar Powered WiFi Weather Station V4.0

Hackaday Prize 2019

'Professional' wind instruments are mounted high on a pole in an exposed location with LoRa data transmission

Low Power High Accuracy Weather Station

Capt. Flatus O'Flaherty ☠

The 2018 Hackaday Prize

Measures wind speed via inertial sensors and rain with capacitive. Maintenance free, LPWAN, 3D printed (Not yet another AWS)

Weather Pyramid

Manolis Nikiforakis

Hackaday Prize 2020

Open Source Universal RT Soldering Station with Tweezers support

Soldering RT1

Riccardo Pittini

Two hearts are better than one, so why not have five. Quadcore RPI CM4 and a MCU on a single board for true all-in-one 3D printer control.

Sigmoid S7P 3D Printer Control Board

Hackaday Prize 2020

Test any electronic component with this pocket component tester

Component Tester in a Keychain

The 2018 Hackaday Prize

A smart bathroom scale, using 3D printing, ESP8266, Arduino IDE, Adafruit.IO and IFTTT app.

DIY Wi-Fi Smart Scale (with ESP8266)

The 2015 Hackaday Prize

A shit-ton of things that are useful for a shit-ton of projects. (and, Think 'apt-get' for reusable project-code)

commonCode (not exclusively for AVRs)

Thor+ will get a little brother

THOR+ JUNIOR ROBOTIC ARM

dannyvandenheuvel

Desktop solder paste dispenser that works with disposable Co2 cartridges

Solderocket

Hackaday Prize 2019

Open source hardware smart thermostat for your home.

HestiaPi Touch - Open Smart Thermostat

Use a (D)SLR to "scan" analog film negatives and positives with 3d printed holding frame.

Scan analog film. For the very last time.

It can not only control each point individually, but also can be extended without limitation to meet your requirements on LED Sign, Team Log

DIY LED Sign with MAX7219 Dot Matrix Module STM8S0

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Bits

John wrote 01/21/2016 at 18:12

Did you finish this project?

Is the arduino sketch available?

Do you have any PCBs left over?

Are you sure? yes | no