The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...

[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.

The circuit is extremely simple, comprising the sensor, an Arduino Nano, and an OLED display. This device is handy because its voltage output has a known relationship to the gauss level the sensor ...

As the Arduino Nano and Micro cost the same ($24.90), deciding ... ever board to build DIY devices like portable environmental sensors or mobile robots, you can't go wrong with the Nano.

The SATURN NITRO is PIC32MK development board that closely follows the Arduino Nano form factor, but with much beefier specs ...