Here is a simple Arduino Camping Light project. In this design, only one push button switch is used to control the light output (from a bunch of white LEDs) between off ... MCU: Arduino UNO R3 IDE: ...

Project using Arduino UNO and a RFID reader module (EM-18) to control an LED and a Relay. Circuit schematic and Arduino Sketch (source code) are provided here. The reader transmits radio frequency ...

Inside the cool laser-cut box is an Arduino Uno and a 9V battery, plus a current-limiting resistor and the all-important buzzer. We like how [newsonator] wired up the LEDs to the Arduino by ...

you can replace them with bigger LEDs or even a light bulb (paired with a relay for the Arduino Uno). Try a toggle switch instead, so you won't have to keep your hands on the push button.

“Uno R4 WiFi includes ... WiFi’s LED matrix The on-board 12 x 8 (96pixel) matrix of red LEDs (photo right) is Charlieplexed for pixel-level addressing. Arduino_LED_Matrix API is available for ...

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...