Disco Lights with IC555
https://www.electronics-lab.com/disco-lights-with-ic555/
This is a simple 555 timer IC circuit that is able to power two strings of LEDs alternative. Disco lights are mostly used in decoration made with colourful LEDs. For begginners, this is a compact circuit using a single chip IC. IC555 is connected here to form a multivibrator. The blinking speed can be easily […]
Choosing $1 sound card for DC-capable low speed oscilloscope
https://www.electronics-lab.com/choosing-1-sound-card-for-dc-capable-low-speed-oscilloscope/
Tomasz Ostrowski has tested some cheap USB sound cards as low speed oscilloscope interfaces/recorders. He writes: I’ve tested some cheap ($1) USB sound cards for DC sampling capability, in particular for using as low speed oscilloscope/signal recorder. Some (http://tomeko.net/dsoundscope/c_media.php or one from this thread: http://www.elektroda.pl/rtvforum/topic3106124.html) don’t seem to work despite removing DC blocking capacitor, but […]
CCS811 – Digital CMOS gas sensors for wearables & IoT
https://www.electronics-lab.com/ccs811-digital-cmos-gas-sensors-for-wearables-iot/
by Graham Prophet @ edn-europe.com: Cambridge CMOS Sensors is a semiconductor company that designs gas sensor solutions to monitor the local environment; its CCS811 is the first digital product in its CCS800 product family of ultra-low power miniature gas sensors. The CCS811 integrates a metal oxide gas sensor with a microcontroller sub-system which enables Indoor Air […]
Using The Arduino Serial Plotter
https://www.electronics-lab.com/using-the-arduino-serial-plotter/
idogendel.com introduces us the new serial plotter feature of Aruino IDE 1.6.6: A little unofficial introduction to the Serial Plotter, introduced in the Arduino IDE version 1.6.6. This is a very basic and easy-to-use tool, that allows us to set up quick visualizations of numeric data for whatever purpose. Using The Arduino Serial Plotter – […]
Ovenized crystal oscillator frequency stability
https://www.electronics-lab.com/ovenized-crystal-oscillator-frequency-stability/
E. Schrama @ ejo60.wordpress.com uses an Arduino and a DCF77 time signal receiver to test the stability of an ovenized crystal oscillator running at 1 MHz. In this experiment I will use an Arduino and a DCF77 time signal radio receiver to measure the stability of an ovenized crystal oscillator running at 1 MHz. It […]
Non-Contact Body Temperature Meter
https://www.electronics-lab.com/non-contact-body-temperature-meter/
One of the most commonly used medical instruments nowadays is the thermometer. The thermometer is used to monitor or measure the body temperature of a sick person. The idea of creating a thermometer started from a device called thermoscope, a thermometer without a scale. Several inventors developed it until Sir Thomas Allbutt invented the first […]
ARPM: Another Raspberry Pi Microscope
https://www.electronics-lab.com/arpm-another-raspberry-pi-microscope/
Dr H @ instructables.com build a Raspberry Pi based microscope using a WaveShare B-camera and plexiglass parts. He writes: Based on the RPI camera and LEGO brick-based microscope I presented earlier ( A-Raspberry-Pi-camera-based-microscope-built-from- LEGO ) I have constructed a similar microscope build from Plexiglas parts. So you may build your microscope even w/o having a LEGO […]
DIY Sunlight Simulator – Light Therapy Light
https://www.electronics-lab.com/diy-sunlight-simulator-light-therapy-light/
Luke Skaff @ lukeskaff.com decided to build a DIY Sunlight Simulator using wide spectrum filament lamp to be used as light therapy for Seasonal Affective Disorder. During the process he checks for various kinds of lamps and examines their light spectrum. He writes: Sunlight simulation light boxes are commonly used as light therapy for treatment […]
Makerarm: The Robot That Can Make Anything!
https://www.electronics-lab.com/makerarm-the-robot-that-can-make-anything/
A complete digital fabrication system for makers everywhere: 3D print, laser, carve, plot, assemble, pick/place + more on your desktop! Makerarm: The Robot That Can Make Anything! – [Link]
Arduino LED Wall clock using WS2811
https://www.electronics-lab.com/arduino-led-wall-clock-using-ws2811/
This is a big LED digit wall clock based on Arduino and WS2811. Features : big digits ( each digit is approximately the size of a A4 paper). slim in order to fit in a photo frame (a big one). auto dim the light depending on the light in the room. dedicated DST button. Arduino […]