Here is the diagram of my Arduino infrared close proximity sensor. As you can see, the core part of my experimental setup is an Arduino UNO, but other compatible microcontrollers can also be employed.

Sure, modern paper shredders already have sensors that tell you when the bin is full, but if your machine lacks this feature, you can just build it a custom sensor with an Arduino Uno. This paper ...

Here’s a no-PCB Arduino that doesn’t obscure the DIP ... allowing it to be used in a breadboard or DIP socket. You can see a walk through of the components in the clip after the break.

Reduce the headache of managing students’ messy wires flying around microcontroller board and breadboard during class. – Enhance the current design (Arduino UNO) for native USB development ...

They feature analog pins for reading analog components (e.g., potentiometer, flex sensor ... to be placed on a breadboard. Conversely, the Uno's pins are female. Both the Arduino Nano and Uno ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

It combines an Arduino-compatible processor with a light sensor, a temperature sensor, a 3-axis accelerometer, a joystick, a set of pushbuttons, a slider, an RGB LED, and a buzzer. The Esplora can ...

(Source: Arduino) The UNO R4 WiFi version comes with an Espressif ESP32-S3 module for Wi-Fi and Bluetooth Low Energy connectivity. The bright 12×8 red LED matrix is ideal for creative projects using ...