rkramer

Read mathematics at uni, autodidact in other stuff.

Seattle

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2 Projects

rkramer

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This user joined on 02/15/2025.

3.3k

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

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Cat Valve

rkramerrkramer

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

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The (Original) 1Hz Challenge

rkramerrkramer

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.

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

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Hackaday.io Project

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The 2015 Hackaday Prize

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Build your own nervous system!

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

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The Launchpad - A 2ドル Arduino Nano alternative

clyde-d-corpuzClyde D. Corpuz

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I love to program programmers. Yo dawg...

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Microchip PIC Arduino based programmer

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Official Hackaday Prize Entry

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

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

hkdcsfhkdcsf

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

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Animatronic Iron Man MKIII suit

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Hackaday Prize 2019

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

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FossaSat-1, Open Source Satellite

julian-fernandezJulian Fernandez

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Embedded Machine Vision for Robots and Drones

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OpenMV-DSP

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The 2015 Hackaday Prize

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

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Model Rocket Data Logger

mdasilvaM.daSilva

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This is a non-invasive WiFi Washing Machine Monitor

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Washing Machine IoT

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The 2017 Hackaday Prize

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Absolute best watch ever !!!!

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BPW34 solar powered led watch

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

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Homemade rocket engine

howieHowie

The 2015 Hackaday Prize

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

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IoT to Feed the Next Billion

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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

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Project Rockoon

julian-costasJulian Costas

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

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Single-lead ECG & heartrate variability monitor

ashwin-k-whitchurchAshwin K Whitchurch

Hackaday Prize 2019

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Convert FPV racing drone into an interceptor using Raspberry Pi

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Open Source Air Defense

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The 2017 Hackaday Prize

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

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The UnbreakaBLE Micro Drone

anshul-sanamvenkataAnshul Sanamvenkata

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A MIDI controller with arcade push buttons and 32 RGB LEDs

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MIDI Fighter

w4ilunw4ilun

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rkramer

My Projects

Cat Valve

The (Original) 1Hz Challenge

Things I've Built

Pump controller

Projects I Like & Follow

Hackaday.io Project

NeuroBytes

The Launchpad - A 2ドル Arduino Nano alternative

Microchip PIC Arduino based programmer

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

Animatronic Iron Man MKIII suit

FossaSat-1, Open Source Satellite

OpenMV-DSP

Model Rocket Data Logger

Washing Machine IoT

BPW34 solar powered led watch

Homemade rocket engine

IoT to Feed the Next Billion

Project Rockoon

Single-lead ECG & heartrate variability monitor

Open Source Air Defense

The UnbreakaBLE Micro Drone

MIDI Fighter

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Become cool instantly

rkramer

My Projects

Things I've Built

Pump controller

Projects I Like & Follow

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