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rkramer

Read mathematics at uni, autodidact in other stuff.

Seattle

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This user joined on 02/15/2025.

My Projects

A StarTrek-esque motion-triggered sliding door to prevent my Bad Kitty from bringing me scurrying gifts in the middle of the night.

Cat Valve

rkramer rkramer

Build a working Graham escapement mechanism with PLA printed wheel and armature and minimal investment of time, money, and effort.

The (Original) 1Hz Challenge

rkramer rkramer

Things I've Built

Pump controller

I needed a water sensor to control a bilge pump in a rather tight space. Full details https://www.rkramer.dev/projects/sump/index.html.

Projects I Like & Follow

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

Hackaday.io Project

The 2015 Hackaday Prize

Build your own nervous system!

NeuroBytes

A near-Arduino Nano form factor and Arduino compatible board based around a "better" and cheaper AVR MCU (currently an ATtiny1616)

The Launchpad - A $2 Arduino Nano alternative

clyde-d-corpuz Clyde D. Corpuz

I love to program programmers. Yo dawg...

Microchip PIC Arduino based programmer

jaromirsukuba jaromir.sukuba

Official Hackaday Prize Entry

This project is a clock with radio receivers which can receive the exact time from the GPS satellites or from the DCF77 transmitter.

"Connect" to an atomic clock in space! GPS, DCF77

RFID tags in the gloves control shoulder rockets pods, hip pods, forearm missile, back flaps and wireless helmet.

Animatronic Iron Man MKIII suit

Hackaday Prize 2019

Creating a free & open source global IoT network, democratizing access to space by miniaturizing aerospace systems.

FossaSat-1, Open Source Satellite

julian-fernandez Julian Fernandez

Embedded Machine Vision for Robots and Drones

OpenMV-DSP

iabdalkader i.abdalkader

The 2015 Hackaday Prize

A small accelerometer, thermometer, altimeter, SD card logger, with a radio downlink. Does not include Kerbal life support.

Model Rocket Data Logger

mdasilva M.daSilva

This is a non-invasive WiFi Washing Machine Monitor

Washing Machine IoT

The 2017 Hackaday Prize

Absolute best watch ever !!!!

BPW34 solar powered led watch

This is an easier tutorial than my last and it is on homemade rocket engines!

Homemade rocket engine

The 2015 Hackaday Prize

An opensource Web platform and cheap sensor hardware solution for the massification of Continuous-flow solution culture (hydroponics)

IoT to Feed the Next Billion

kestler Kestler

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

Project Rockoon

julian-costas Julian Costas

Hackaday Prize 2019

Convert FPV racing drone into an interceptor using Raspberry Pi

Open Source Air Defense

In this project we show how we made a single-lead ECG monitor for heart-rate variability using the MAX30003 and an Arduino Uno.

Single-lead ECG & heartrate variability monitor

ashwin-k-whitchurch Ashwin K Whitchurch

Convert Kicad PCB files into GCode with isolated PCB Nets

PCB Isolation Routing Software

michael-schembri Michael Schembri

The 2017 Hackaday Prize

Use any Bluetooth 4.0(BLE) device to control this agile little modular drone.

The UnbreakaBLE Micro Drone

anshul-sanamvenkata Anshul Sanamvenkata

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