|Pair of PIC12F617-I/P chips for the Steam Train Whistle/Diesel Horn [0910618A/M.HEX]|
A pack of two PIC12F617-I/P 8-bit microcontrollers programmed with the firmware for the Steam Train Whistle/Diesel Horn (0910618A.HEX and 0910618M.HEX).
This includes the chip to produce white noise for the steam sound, plus the chip that produces the whistle/horn sounds.
You don't need to purchase the two chips separately if you buy this bundle.
Also make sure to order the TDA7052AT audio amplifier IC if you need one for this project.