shengwei0515 / pt2399_tap_tempo

PT2399_Tap_Tempo

This project uses an ATTiny85 microcontroller, an encoder, an opamp, transistor, switch and some passives to create full-featured PT2399 tap tempo solution. Features include:

• Relative time adjustments: adjusting the delay time with the encoder doesn't cause delay time to skip around dramatically like some other solutions
• No need for a digiPOT! No need to worry about the tolerances or serial communications.
• Programmable division switch: Press the encoder switch and you can have it do any division you want, just change the code. Defaults are 1.5x and 2x multipliers.
• Blinking LED indicator: shows you the time you tapped in. If using divisions, it shows the actual delay time (delayTime/multiplier)

For more detail on the project, see the webpage at: https://scientificguitarist.wixsite.com/home/pt2399-tap-tempo