| # of key | 1/2 Period | Frequency real | Frequency |
| 1 | 703uS | 711Hz | C6 1046Hz |
| 2 | 730uS | 685Hz | B5 987Hz |
| 3 | 787uS | 635Hz | A5 880Hz |
| 4 | 850uS | 588Hz | G5 783Hz |
| 5 | 927uS | 539Hz | F5 698Hz |
| 6 | 967uS | 517Hz | E5 659Hz |
| 7 | 1.04mS | 480Hz | D5 587Hz |
| 8 | 1.15mS | 434Hz | C5 523Hz |
Need to replace resistors and reverse buttons position.
Alexander Ryzhkov
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.