Arduino TPDD
There are several TPDD emulators based on the Arduino microcontroller platform.
SD2TPDD - Arduino implimentation by Jimmy Petit.
TeensyPDD - Fork of SD2TPDD that takes advantage of the special hardware of the Teensy 3.5 and 3.6 and has a few other minor enhancements. Video
PDDuino - Fork of TeensyPDD for the Adafruit Feather 32u4 Adalogger. Actually supports Teensy also, and includes some enhancements not in TeensyPDD
Micro-TPDD-2 - Not Arduino, but using a similar microcontroller on a custom board.
arduino-tpdd - Ron Lauzon