- Terminus FE1.1 USB hub board: the solution to connect four USB devicesPosted 5 days ago
- Understanding the Mechanics of 3D PrintingPosted 2 months ago
- SDS011 the Air Quality SensorPosted 3 months ago
- NIXIE STYLE LED DISPLAYPosted 6 months ago
- TOTEM: learning by experimentingPosted 6 months ago
- Google Assistant Voice Controlled Switch – NodeMCU IOT ProjePosted 7 months ago
- Water Softener Salt Level MonitorPosted 7 months ago
- Sparkly Air SensorPosted 7 months ago
- Ultra sonic distance finder with live statusPosted 7 months ago
- Windows interface to have total control over lampsPosted 7 months ago
Arduino Radar: How to fade an LED with your breath
In this project, I will show you how to use an Arduino to work with the radar module from XeThru. The radar will sense my breath without any contact, by using electromagnetic pulses to measure the movements of my belly. Then I map these movements into control the intensity of the LED.
I got my hands on this new cool radar module from XeThru (http://xethru.com).
Using off-the-shelf components, I hooked it up to my Arduino Uno on a breadboard.
It uses electromagnetic pulses to measure the movements of my tummy when I breath. I use this measurement to fade the LED in and out.
The cool thing is that it can see through things. So you could also build it into a chair to see that your grandma is still breathing, or into a mattress to measure the quality of your sleep.
I posted all the details, hardware, code and everything on my blog with a hope to see more people playing around with this technology:
I think we’re going to see some pretty cool projects when this technology gets more widespread.
Bill of Materials:
- Arduino UNO
- XeThru radar module (http://xethru.com)
- 2.8V voltage source
- BSS138 level shifter
- RGB Led
- 3 x 100 Ohm resistor