Nowadays, doing calculations isn’t a problem at all. Powerful calculators can be bought for few Euro or easily installed on phones and computers. However, we decided to turn our Arduino into a calculator because we think it could be a really interesting experiment.
It’s actually a very simple calculator, in fact it can just do the four basic calculations accepting only integer positive numbers. Despite this fact, the sketch is quite complex – and you’ll figure it out on next steps -, but the circuit is pretty easy instead and requires few and common components.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.