Micro Robot Arm

This is essentially a repackaging of the micro robot arm project by bentommye (thing:34829) with other remixes, Holgero (thing:6508) and Ajaxjones (thing:2375913). The original design used an IR remote to control the arm movements and allow for a user to program up to 16 sets of movements for each servo. Once power was removed, all the arm movement programming was lost. I added an SD card module and revised the Arduino programming to allow for saving up to 10 files of movement data with the ability to load a selected file of data back to the Arduino. I also changed the servo controller to an inexpensive 16-channel PWM servo controller, like available from Adafruit. The addition of the SD library along with all the other libraries resulted in exceeding the memory available of an Arduino UNO (32K). Therefore, I switched to an Arduino Mega 2560 Pro processor board which is smaller than an UNO but has 256K of memory. These are available for about $11 (AliExpress).

I was making this pro