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Although a “CommsLink” module providing an RS-232 port was available back in the day, it’s become hard to find, inspiring [James] to design a completely new module based on an Arduino Nano.
It's like a shrunken version of the Arduino Leonardo as it features the same ATmega32U4 microcontroller, micro-USB port, and pinouts. It also operates at 5V and requires an external supply of 7 to ...
However, the USB port doubles as a power port. To use it as such, you need a USB cable and a 5V power source. In the case of the Arduino Nano, a mini-B USB cable is required.
The board is built around an ATtiny3217 and has almost all of the Nano’s features, like a USB port, reset button, built-in LEDs, 5 V regulator, and preloaded bootloader.
This is the SB116, an 8-bit programmer’s calculator powered by an Arduino Nano. It features a 128 x 64 pixel monochrome OLED display and can be powered by either a USB port or three AAA batteries.
Arduino Nano screw terminal adapter “With a finished project, you’re likely to make permanent connections to your Nano by soldering it. Even if you’re connecting it using a header strip, ...
Power can be applied as 3.3V via pins, 5V via its USB-C connector or 6 – 21V via pins. Arduino has not included active power consumption on its data sheet but, according to the uBlox datasheet, module ...