This is a small GUI for interactively modelling simple lens arrangements. Collimated and diverging rays are propagated through the lens system, where thin lenses are assumed throughout. If an real image is formed, its position and magnification are noted. An arbitrary number of lenses are supported, and may be added or removed interactively.
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.