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Niels

Hedonistic Utilitarian with a squeeze of Tanqueray.

Denmark

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This user joined on 08/31/2016.

My Projects

Balanced Door with self-adjusting end stop

Chicken House Door with 10 years reliability.

Projects I Like & Follow

Yet another Raspberry Pi Computer (non-official carrier board for CM4).

MirkoPC -> CM4 carrier board

The 2017 Hackaday Prize

An ARM based scientific calculator

Scientific Calculator

Hackaday Prize 2019

Loko is the 12 gram GPS tracker with extreme battery life.

Loko-the Tiniest GPS tracker with 270 days battery

The 2016 Hackaday Prize

Wall mounted touchscreen to keep family in sync, and home automation control panel.

Family Sync & Home Control Panel

Open-source and open-hardware custom scientific RPN calculator

OpenRPNCalc

Anton Poluektov

A USB-C PD Sink up to 20V 5A based on the Cypress CYPD3177 USB PD Controller

USB-C Power Delivery Sink - CYPD3177

Supplyframe DesignLab: 2022 Hackada…

Power logger based on the INA3221 chip with TFT Display, SD card and battery (charging and monitoring) support

ESP32 3-Channel Power Logger

2021 Hackaday Prize

An emulator for the HP Voyager calculator series

HP15C Calculator Emulator

The 2016 Hackaday Prize

a project to be in control and notified of what the EZpass is exactly doing in that suspicious little white box

E-Zpass Privacy Automation

To prevent our chickens from leaving their coop real early and waking up the neighborhood, I created this automated door for the coop.

Automated Chicken Coop Door

Tsjakka Tsjakka

Supplyframe DesignLab: 2022 Hackada…

A fully open-source digital power electronics technology framework for fast prototyping switch-mode power supplies

DIY Power for all - OwnTech

My design for a desktop Calculator based on the original Nixie tubes IN-12, Walnut case, and Cherry-MX customized keyboard.

TORI Nixie Calculator

Creating a monitoring and control network for the urban farm and aquaponics system at Garinger High School

Growing Education

My attempt at a non-destructive LiPo retrofit for the unique-yet-somewhat-loathed HP 28S calculator

HP 28S LiPo Battery

The 2016 Hackaday Prize

48 channel Opensource led light controller for many applications.

OLLC (Opensource Led Light Controller)

A usable fix for a broken battery door on an HP28S Calculator

HP28S Battery Door Prosthetic

Open Source Modular Laptop and Docking station

Project M0DUL4R

Mechanical Keypad and RPN Calculator

Euclid Keypad

View all

Bits

Bharbour wrote 04/19/2022 at 23:20

Thanks for liking and following my #HP28S Battery Door Prosthetic project!

BobH

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