Video: https://www.youtube.com/watch?v=afvmLPOEfR4 POV = Persistence of VisionPOV as you type (a typewriter way to write on the air in a POV rig and in real time).The POV rig has a receptor RF 433Mhz, so you must type in your keyboard's computer (wich has a transmitter attached to USB port), that will transmit the characters via RF 433 Mhz to the POV rig, in real time.I used a Hall Effect Sensor for stabilization as well creating a starting point for the writing position.The material list is here:** Parts for the Transmitter:RF Transmitter 433 MhzArduino NanoUSB CableNotebook or PCRealTerm software** Parts for the POV rig:Arduino Pro mini3.7 battery lipo 500 mAhRF 433 Mhz ReceiverMini power SwitchHall Effect SensorNeodymium Magnets8 ~ 16 Blue LEDs220 Ohms ResistorTrimpot 10kWires2 x PCB ( one for the horizontal base , and another one for the ver