TAPRECISE - Calibrated Tap Tempo with Presets, Subdivision and Modulation

[lars-musik]

Hi,

I finally came 'round to populate my PCB for this project, hooked it up to a working Deep-Blue-Clone and ran into some troubles. As soon as I connect the calibration wire 1 to the output (or to the input for that matter) the delay falls quiet.
Here's my copied schematic -  do you spot any mistake? Or some help in term of troubleshooting? If I cannot use my audioprobe I am lost. R400 is 10k.

Thanks!!




EDIT:

I went through the instructions again. I don't really get what this SPDT does there. I didn't populate the R18 and soldered the CTRL cable from the TAPRECISE directly to pin6 of the pt2399. Good?

[lars-musik]

GOT IT!!!!!! AAARGH! I forget the ground connection at the mod switch. AND I didn't wire the switch anyways because stupid me thought (because I overlooked the ground connection) the switch wouldn't be necessary for the calibration routine....
It is calibrating atm. I'll get back later!


It works. That is soo cool!

Thanks a heap for your work and sharing, Marshall Arts!

[Marshall Arts]

GOT IT!!!!!! AAARGH! I forget the ground connection at the mod switch. AND I didn't wire the switch anyways because stupid me thought (because I overlooked the ground connection) the switch wouldn't be necessary for the calibration routine....
It is calibrating atm. I'll get back later!


It works. That is soo cool!

Thanks a heap for your work and sharing, Marshall Arts!

I am happy. Been on a Xmas market and was wondering bout the issue. Support is getting harder years after the development...

[Marshall Arts]

Have you finalized your build? If so, can you paste some pictures?

[Ben N]

Any chance of a board being available for this amazing project? I know it's been a while, but I am just getting into my Deep Blue clone (Aion), and this would be a sweet addition.

[Marshall Arts]

Any chance of a board being available for this amazing project? I know it's been a while, but I am just getting into my Deep Blue clone (Aion), and this would be a sweet addition.

Yes, they are (this time in white - whooo!) : https://www.madbeanpedals.com/forum/index.php?topic=25099.msg294767#msg294767

[Ben N]

Mattias, do you think the Taprecise could be made to control a Mitsubishi M65831AP (the chip in the Ibanez EM5 EchoMachine)?
Ben

[Leetut]

I'm trying to calibrate 3x PT2399 for a few days now, I get a beep, then some clicks, then the nano leds flash, but a few hours later it's still doing the same, also the tempo of the click repeats never changes, any ideas?

[Leetut]

Also currently can't calibrate a single pt2399, I get the first beeps at different tempos with their repeats, then red light goes off and I get clicks, then endless flashing red led on the nano

edit, this started working when I left the usb cable plugged in

[Leetut]

this is what I get when trying to calibrate 3x pt2399
sounds like I hit the jackpot!
serial output and schematic attached

[Marshall Arts]

I assume the delay ist working with a regular Pot...

Seems Like the digi Pot is Not changing the delay time, so I assume some wiring issued between taprecise and the delay...

[Leetut]

yes 3x pt2399 works with a normal pot,
im wired up same as the v1.2 pdf minus the mod switch,
(also get the same behaviour if I connect the mod switch)

[Marshall Arts]

Disconnect the delay and measure, If the resistance in the three digipot lugs Changes during the calibration, please.

[Leetut]

Using a 50k digipot,
Disconnected from delay,
Resistance between pins 5-6 and 7 is 30k,
I upload code,
Red led comes on, resistance drops to 1k,
Then back to 30k, green led comes on, this all happens in about 2 seconds

[Leetut]

Tried calibrating a 50k digipot with 1 pt2399,
Then uploaded main code and connected to 3x pt2399,
The delay knob works but it's ignoring the min/max set delay,
Led is flashing maybe 3x fast,
Tap button is way off, and preset and subdiv dont respond,
Was worth a try