The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close proximity sensor. As you can ...

The week point for accuracy is that the UNO has the analog ref tied to Vcc but you can switch analog ref to the internal 1.1Volt reference to measure and then switch everything back. See the ...

The build relies on an Arduino Uno as the brains. ... [Maker 101] gave the Arduino an infrared sensor which can pick up signals from a simple IR remote control.

Both the Arduino Nano and Uno can be powered via their integrated USB connectors. This automatically supplies regulated 5V power to the board, allowing you to use any USB-supported power source ...

The Arduino UNO R4 boasts a 3x performance increase over the UNO R3 and , in addition, SRAM has been upgraded from 2kB to 32kB, and flash memory from 32kB to 256kB to support more complex projects.

Details of Arduino UNO R4 32-bit board revealed, including the 12x8 RED LED matrix on board and connectivity for IoT applications. ... The bright 12×8 red LED matrix is ideal for creative projects ...