In this review of the Maker Uno RP2040 board with the Arduino IDE we could blink LEDs, control RGB LED lights, press the user button to turn on one LED or make the buzzer output some melody, control a ...

If it is closer than 500 cm to you, you need to signal your friend via RF transmission that you are in danger by saying “The spider is ** cm close to me. Help!”. The ultrasonic sensor and push button ...

Connect the ultrasonic sensor to the Arduino according to the pin configuration. (Optional) Connect the LCD display to the Arduino for speed visualization. Load the provided Arduino code into the ...