Author: mixos
Individually addressable incandescent lamps
Michael wrote an article on controlling a bunch of lamps individually with WS2811 drivers and Arduino. [via] I simply used the same technology as LED strips to allow communication between lamp modules. LED strips have RGB LEDs with an embedded driver chip which uses PWM (pulse width...
Continue ReadingESP32 Web Server – Arduino IDE
Rui @ randomnerdtutorials.com tipped us with his latest project. He writes: In this project you’ll create a standalone web server with an ESP32 that can toggle two LEDs using the Arduino IDE programming environment. If you want to learn more about the ESP32 dev board, read my...
Continue ReadingSmallest seismic sensor uses vibration spectral analysis
Graham Prophet @ eedesignnewseurope.com discuss about a new small seismic sensor from Omron: Omron Electronic Components believes it has the world’s smallest class size seismic sensor, specifically designed to trigger the shutdown of potentially hazardous or easily damaged systems...
Continue ReadingSimple circuit indicates a low battery
James Wood @ edn.com writes: The Design Idea in Figure 1 indicates a low-battery condition in an audio test instrument that is powered by four AA cells. As the instrument was otherwise an all-discrete design, this same approach seemed more in keeping with the spirit of the project...
Continue ReadingMightyWatt: 70W Electronic Load for Arduino
Jakub designed and built a programmable electronic load for Arduino, the MightyWatt R3: MightyWatt R3 is a programmable electronic load. That means you can use it for testing batteries, power supplies, fuel cells, solar cells and other sources of electrical power. You can also make...
Continue ReadingMPPT solar charger
Lukas Fässler from Soldernerd has been working on revised version of his MPPT Solar charger project: Over the last few weeks I have been quite busy with my MPPT Solar Charger project. I’ve built up a first board and started writing firmware for it. Since the last version was not...
Continue ReadingRaspberry Pi LCD Touchscreen Rotation
In this video, Circuit Basics walks us through the steps to change the screen rotation on an LCD touchscreen for the Raspberry Pi. Since there are separate drivers for the display and the touchscreen sensors, we need to change the orientation of both. It's pretty simple to do, but a...
Continue ReadingUsing I2C SSD1306 OLED Display With Arduino
Sometimes it may be necessary to use a display when making a hardware project, but one confusing thing is the size of the display and the required pins to control it. This tutorial will show you how to use a small I2C OLED display with Arduino using only two wires. The display...
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