Tag Archive for "heart rate" - Open Electronics

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Arduino-Powered Sleep Monitoring System
While it can be difficult to get enough sleep, at least you can try to make it as restful as possible when you are in bed. That’s the idea behind this project by Julia Currie and Nicholas...
- Posted 6 years ago
- 0

Acoustic amplifier – in DIY Kit
This kit creates a microphone amplifier with an output suitable...
- Posted 4 months ago
- 0
Clap sensor switch – in DIY Kit
It is capable of recognizing the sound of clapping hands...
- Posted 7 months ago
- 2
Liquid level indicator for tanks – in DIY kit
This monitoring device is useful for keeping track of the...
- Posted 7 months ago
- 0
LED candle with Breath-Activated ON/OFF – in DIY Kit
This LED candle with breath-activated ON/OFF function draws inspiration from...
- Posted 7 months ago
- 0
Low charge audible warning for 12V batteries – in DIY Kit
This low-charge warning buzzer alerts you when your vehicle’s battery...
- Posted 7 months ago
- 0
Automation for motorized blinds and shutters – in DIY Kit
Complete Kit for Motorized Outdoor Blinds and Shutters Automation. This...
- Posted 7 months ago
- 1
Alcohol tester with LED indication and audible buzzer – in DIY Kit
With its high sensitivity and rapid response times, this kit-based...
- Posted 7 months ago
- 0
LED candle with Breath-Activated ON/OFF – DIY Kit
This LED candle with breath-activated ON/OFF function draws inspiration from...
- Posted 7 months ago
- 0

PCB CAD, A SELECTION GUIDE
Getting to know and evaluate the software offer for PCB,...
- Posted 3 years ago
- 0
DIY Sensor – Innovation & Implementation
A sensor converts data such as heat, light, sound,...
- Posted 3 years ago
- 0
Getting Started with the ESP32
This article is a getting started guide for the ESP32...
- Posted 4 years ago
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The flame that doesn’t burn
Based on Neopixel and a special ultra-thin Arduino, it simulates...
- Posted 2 years ago
- 1
Here are the Winners from the 3Drag 3d printing contest
Here we are, eventually the contest has come to an...
- Posted 9 years ago
- 0
Updates from the 3Drag 3dprinting contest: Roland Hoffert’s Hacks
Roland Hoffert, from www.eytec.de, submitted us this 3Drag (Velleman K8200...
- Posted 10 years ago
- 0
Updates from the 3Drag 3dprinting contest: Karl Seiss’s Hack
Karl Seiss from Austria made a very clever hack to...
- Posted 10 years ago
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PCB Recycling: The Core of Your Electronics Is More Valuable Than You Think
The screen you are looking at this very moment will...
- Posted 2 years ago
- 4
PCB CAD, A SELECTION GUIDE
Getting to know and evaluate the software offer for PCB,...
- Posted 3 years ago
- 0
The Open Source community united against Covid-19
On March 11, WHO (World Health Organization) officially declared the...
- Posted 4 years ago
- 0
Coronavirus: Now Is The Time For Solidarity
The moment we are living, in China before and all...
- Posted 4 years ago
- 0

Arduino ISP (In System Programming) and stand-alone circuits
We use an Arduino to program other ATmega without...
- Posted 12 years ago
- 226
Arduino GSM shield
This is a very low...
- Posted 13 years ago
- 218
Localizer with SIM908 module
The device is based on a GSM/GPRS module with...
- Posted 12 years ago
- 187
GSM GPS shield for Arduino
Shield for Arduino designed and based on the module...
- Posted 12 years ago
- 181
Small Breakout for SIM900 GSM Module
Some post ago we presented a PCB to mount...
- Posted 13 years ago
- 115

Building a 3D Digital Clock with Arduino
Project to create a digital clock consisting...
- Posted 3 months ago
- 0
Acoustic amplifier – in DIY Kit
This kit creates a microphone amplifier with an output...
- Posted 4 months ago
- 0
Creating a controller for Minecraft with realistic body movements using Arduino
Project of a controller that maps body movements...
- Posted 4 months ago
- 0
Snowflake with Arduino
With Christmas just a few hours away and no...
- Posted 4 months ago
- 1
Holographic Christmas Tree
Beautiful project to create a Persistence of Vision...
- Posted 5 months ago
- 0