New! https://ralphbacon.blog/ Sometimes you only need a cheap, tiny microcontroller and the Atmel Tiny85 may be just the job. It's physically small (the clue's in the name) but it has lots of capability - just not very many GPIO pins. Don't get me wrong; Microchip/Atmel are not promoting this chip as any kind of substitute for a full-blown ATmega328P but in some cases (like my simple fridge door alarm in Video #41 & #42) the AT Tiny85 could easily be sufficient. And this Digispark (as Sparkfun call their implementation) can use I2C (software emulated) so you can always extend the number of pins with a pin extender too! This video introduces you to this miniscule device and shows you its capabilities as well as its limitations - I'll explore it further in a future video but for now this may whet your appetite. And given its extremely low cost (about £1 or $1.40) it's worth investigating. Allowing it to be programmed via the Arduino IDE is relatively straightforward (although I wish I had discovered the Sparkfun page to walk me through the process before I had single-handedly struggled through!) and it's just easy to use. And, just like the Leonardo it can connect to Windows and act as a keyboard or mouse (but caution! watch what happens in the video) without any further drivers. Lots of helpful links (but watch the video regarding installation) http://www.electroschematics.com/12102/learn-to-use-attiny85-usb-mini-development-board/ Connecting your device (watch the video first though): 1. http://digistump.com/wiki/digispark/tutorials/connecting 2. http://digistump.com/wiki/digispark/tutorials/modelbi2c Updated files for Arduino IDE integration https://github.com/digistump/DigistumpArduino Data sheet: http://www.atmel.com/images/atmel-2586-avr-8-bit-microcontroller-attiny25-attiny45-attiny85_datasheet.pdf Additional boards manager entry: http://digistump.com/package_digistump_index.json The DigiKeyboard.h (turns the device into a Windows keyboard) Note: this is now deprecated but still works just fine. Or use the one in the 'Updated Files' above. https://github.com/digistump/DigisparkArduinoIntegration If you like this video please give it a thumbs up, share it and if you're not already subscribed please do so :) My channel is here: ------------------------------------------------------------------ null ------------------------------------------------------------------ How can I remember this? Memory tip: "See" Ralph Bacon, geddit?