menu
All items tagged with Elektor.LABS (519)
Subscribe to this tag
Build a Power Over Ethernet UPS for Your Raspberry Pi
November 19, 2019 by Clemens Valens

Build a Power Over Ethernet UPS for Your Raspberry Pi

How do you power a highly reliable LoRa gateway that can be trusted not to trash its SD card and can be remotely located and managed? With this Power over Ethernet (PoE) powered uninterruptible power supply (UPS). A couple of 25-farad supercaps provide enough backup time to cover ten seconds of power outage plus another fifteen seconds to cleanly shut down the Pi if necessary.
Participate
Build an Arduino-based Thermometer Cricket
November 13, 2019 by ElektorLabs

Build an Arduino-based Thermometer Cricket

There are many temperature-related effects that can be used to measure temperature. The chirping sound produced by a cricket is one of them. Here is a simple Arduino-based circuit that let's you emulate a thermometer cricket.
Participate
Elektor Labs Autumn Project Festival: Post & Earn 25 Euros!
November 5, 2019 by Clemens Valens

Elektor Labs Autumn Project Festival: Post & Earn 25 Euros!

In the middle of an autumn depression? Post a new project at Elektor Labs and earn a €25 gift certificate! It may not rid you of your depression, but at least it will keep you busy for a while.
Participate
Add Lidar Vision to Your Robot
October 29, 2019 by Clemens Valens

Add Lidar Vision to Your Robot

Techniques that used to be available for multi-million defence projects only are becoming more affordable. Take lidar, short for Light Detection And Ranging, a 3D laser scanning method for mapping the environment. Initially intended for satellite tracking, today you can buy a miniature lidar for under €100. Add the software from this project and away you go (your robot, of course).
Participate
Build a Power Monitor with Bluetooth and Android App
October 22, 2019 by Clemens Valens

Build a Power Monitor with Bluetooth and Android App

This is a typical one-thing-leads-to-another (OTLTA) project. It started by reading an item about a new component in the Elektor newsletter and it ended with a circuit design with Android app to check the power consumption of a device on your smartphone. Communication between the smartphone and the energy monitor is over Bluetooth.
Participate
Build a Music-Based Growth Stimulator for Tomatoes
October 15, 2019 by Clemens Valens

Build a Music-Based Growth Stimulator for Tomatoes

Recent studies suggest that exposing living creatures of all sorts, animal or vegetal, to music has positive effects on their development and well-being. Inspired by this idea, the author developed a system to stimulate the growth of tomatoes inside a small greenhouse.
Participate
Build a Cheap ESD Human-Body Model Simulator
October 8, 2019 by Clemens Valens

Build a Cheap ESD Human-Body Model Simulator

Electrostatic discharges (ESD) can destroy electronic devices or cause system malfunctions. Professional ESD simulators are expensive, but a cheap high-voltage generator combined with a small microcontroller can be a good alternative. The circuit presented here conforms to the Human-Body model and will work more reliably than your finger(s).
Participate
How to Hand Solder Surface Mount Devices (SMDs)
October 1, 2019 by Clemens Valens

How to Hand Solder Surface Mount Devices (SMDs)

Today it has become almost impossible to build electronics projects without running into those tiny surface mount parts better known as SMDs. Even though reputedly hard to solder, many people have come up with ways of using them for prototyping anyway. Here is one trick. If you have another, feel free to add it as a comment to the project and let the world know about it.
Participate
Build a Multilingual Speaking Clock
September 24, 2019 by Clemens Valens

Build a Multilingual Speaking Clock

As most clocks do, this clock too displays time and date, and it does so on a small TFT screen. However, this clock also announces the time & date at predefined moments or at the press of a pushbutton. Because the user must record his/her own time messages, the clock is truly multilingual (and, in fact, can say anything you like).
Participate
Motor Drivers at Elektor Labs
September 20, 2019 by Clemens Valens

Motor Drivers at Elektor Labs

Electric motors are everywhere and drivers are needed to make them spin in a controlled way. At Elektor Labs we frequently test and try motor drivers and we also roll our own. Here is a short overview of what we are currently looking at.
Participate