Using this device is as easy as eating beans. Just plug it in and it’ll mount itself. Make a new file called code.py as CircuitPython will recognize this file as the main file from which it’ll run code. Mason goes on to write a payload text file parser. So a file named payload.txt will be read and the actions taken. Done in just a few lines of modifiable CircuitPython code! And quite a command set.

I really love Hak5’s Rubber Ducky. I’ve seen similar projects but none with Adafruit’s CircuitPython. Last year we at India Linux User Group Delhi (ILUG-D) celebrated CircuitPython Day and that was when I first got my hands on Express boards. The best thing about this board is that you got everything on board like Speaker, Mic, Bluetooth, Accelerometer, IR sensor, etc. I really like the fact that it can inject keystrokes via USB, Yea something similar to Rubber Ducky!

Mason posts on hackster.io an easy way to make a computer USB keystroke injector (commonly called a rubber ducky). This project uses the flexible, affordable Adafruit Circuit Playground Express programmed with your choice of injectables via CircuitPython , the easy to use version of Python for microcontrollers.



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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org