WiFi-enabled Color LED Matrix using ESP8266 and WS2812 LEDs
https://www.electronics-lab.com/wifi-enabled-color-led-matrix-using-esp8266-ws2812-leds/
ray @ rayshobby.net build a wifi enabled color led matrix using ESP8266. He writes: Last Thursday I had a lot of fun doing a workshop at my college (UMass Amherst) where I taught students to use a WiFi-enabled Color LED matrix combined with Javascript programs to create animations displayed onto the LED matrix. The matrix […]
MCU based LED VU Meter
https://www.electronics-lab.com/mcu-based-led-vu-meter/
dannyelectronics.wordpress.com discuss about how to build a mcu based LED vu meter and provides sample code. From time to time, I see people trying to build an audio VU meter. In the analog era, that’s typically done with a voltage divider + a series of comparators; or using chips like LM3914/3915. Those chips are harder […]
64×16 MQTT LED Matrix Display
https://www.electronics-lab.com/64x16-mqtt-led-matrix-display/
Xose Pérez @ tinkerman.cat build a MQTT LED matrix display to get notification messages. My MQTT network at home moves up and down a lot of messages: sensor values, triggers, notifications, device statuses,… I use Node-RED to forward the important ones to PushOver and some others to a Blynk application. But I also happen to […]
RGBW LED Controller v3.1
https://www.electronics-lab.com/rgbw-led-controller-v3-1/
Jeremy @ thecustomgeek.com updated his RGB LED controller with a bunch of improvements. The new RGBW LED Controller is here! The video above shows some of the things it can do, but here is a list of improvements: IRLB8721PBF MOSFET’s – More power! Double sided and thicker board traces RGBW LED Controller v3.1 – [Link]
16×32 RGB Matrix Panel Driver Arduino Shield
https://www.electronics-lab.com/16x32-rgb-matrix-panel-driver-arduino-shield/
Raj @ embedded-lab.com has revised his RGB Matrix Display Shield to an improved version. The shield now also carries the DS1307 RTC chip on board along with a CR1220 coin cell battery holder on the back. It is applicable for driving popular 16×32 RGB matrix panels with HUB75 (8×2 IDC) connectors. Row and column driver circuits are […]
Test application for the FPGA Tibbit in the smart LED controller configuration
https://www.electronics-lab.com/test-application-fpga-tibbit-smart-led-controller-configuration/
This application example shows how to connect and use RGBW LED stripe with TPS hardware platform. The main difficulty is that LEDs have their own color generation circuit inside. New FPGA Tibbit #57 can generate fast PWM signal, which is needed for proper LEDs operation. Also, the topic shows the main advantage of FPGA technology. […]
Convert $2 LED Lamp to $50 Smart Lamp
https://www.electronics-lab.com/convert-2-led-lamp-50-smart-lamp/
taifur @ instructables.com show us how to convert a simple LED lamp to a smart one that can be controlled using a smartphone. A smart bulb is an internet or Bluetooth-capable LED light bulb that allows lighting to be customized, scheduled and controlled remotely. Smart bulbs are among the most immediately successful offerings in the […]
ESP8266 Wifi enabled 8×64 pixel LED matrix display
https://www.electronics-lab.com/esp8266-wifi-enabled-8x64-pixel-led-matrix-display/
Raj @ embedded-lab.com build an ESP8266 based led matrix display. This matrix is a modification of his previous bluetooth version and uses an ESP8266 as a web server to setup the display message. No other microcontroller is used to control the display so things are kept simple and easy to build your own. This project […]
Basic Electronics – How to use a 555 Timer
https://www.electronics-lab.com/basic-electronics-use-555-timer/
Do you want to know how to use a 555 timer? Laura brings you more Back to School tips and tricks on using this integrated circuit. Basic Electronics – How to use a 555 Timer – [Link]
7 Segment LED Based SPI Display using 74HC595
https://www.electronics-lab.com/7-segment-led-based-spi-display-using-74hc595/
Single Digit Big Display module using 74HC595 IC project will display large size 7 segment single digit number. 3.5inch height, which can be visible over large distance. More digit can be connected serially to each other easily connector. This circuit is a single digit seven segment big display using a set of 5 LEDs per […]