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All items in category Home & Garden
Build an Arduino-based Thermometer Cricket
November 13, 2019
Finished
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.
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Free Back Article: Lumina
November 7, 2019 by Elektor Team

Free Back Article: Lumina

The colours are mostly okay but we want lamps to be s-m-a-r-t-e-r. Like use the processing power of a smartphone to light in rhythm with music, simulate sunset when you go to sleep or turn on automatically when you walk into the room. Lumina does all that — on BLE and from your Android smartphone or tablet.
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Build a Music-Based Growth Stimulator for Tomatoes
October 15, 2019
Proposal
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.
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Build a Multilingual Speaking Clock
September 24, 2019
Proposal
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).
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Cool Summer Free Article: Line AC Switch Controlled by Bluetooth Low Energy
August 28, 2019 by Elektor Team

Cool Summer Free Article: Line AC Switch Controlled by Bluetooth Low Energy

This article describes the electronics, the BL600 program and the Android program; the last being an Android smartphone application with which your mains switch circuit may be controlled wirelessly. You may notice an unusual detail for these pages — the transformerless power supply.
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Control an AC Load with a Microcontroller, Arduino or Raspberry Pi
July 2, 2019
Proposal
by Clemens Valens

Control an AC Load with a Microcontroller, Arduino or Raspberry Pi

Playing with the mains voltage can be deadly, so proper isolation techniques and safe working practices are very important. Besides emphasizing these lifesaving things, this article also explains in detail how to apply them when building an AC load controller or light dimmer with a well-designed PCB. The device itself can be connected to a microcontroller, but also to an Arduino or a Raspberry Pi board.
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Connect your Doorbell to the Internet
June 24, 2019
Proposal
by Clemens Valens

Connect your Doorbell to the Internet

Wireless doorbells have been around for many years, but they have limited range. Besides more pleasing sounds than a loud DRRRING from a wired bell they do not really offer much more. Connecting a doorbell to your Wi-Fi network makes things way more interesting. Now suddenly the old button can send email when someone is at the door and you can “hear” it almost anywhere on the globe.
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Shoo Cat!
June 18, 2019
Proposal
by Clemens Valens

Shoo Cat!

This is one of those projects that many people dream of building, but few actually do all the way. Admit it, you too have thought at least once about automated curtain openers in your bedroom, yet I have only once met a guy who had really done it. This system spouts water at cats to chase them away. I’m gonna build me one of these too, but against pigeons.
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Review: Earth Listener Kit
May 28, 2019 by Luc Lemmens

Review: Earth Listener Kit

Sometimes a project is given such a name that you (read: me!) do not immediately know what it represents or what it does, an ‘Earth Listener’ for example. The description of the product, however, makes things much clearer: ‘The Earth Listener from Velleman is an Arduino-based sensor module that can measure multiple environmental variables in order to indicate the air quality’.
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Build a Very Cheap Remote Control for Volumio on Raspberry Pi
May 21, 2019
Proposal
by Clemens Valens

Build a Very Cheap Remote Control for Volumio on Raspberry Pi

Volumio is a popular audio player app that runs on multiple platforms, and the Raspberry Pi is one of them. This project lets you add remote control to your player in a cheap way by using low-cost 433 MHz transmitter and receiver modules that are easily found online. Besides being suitable for Volumio, you can add the remote also for other applications.
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