Hi!
I have a TempoPAD C16. I'd like to know if it's possible to send a MIDI command to a CC button (in my case, the recording arm button) so that it turns on or off at will. I've been able to do things with SysEx commands, like bulk channel switching, but I can't figure out how to do this.
Thanks!
Hello, your idea is feasible. You can learn and map it on your DAW software or hardware.
If you have any questions, please feel free to contact us again. We are happy to help.
Thank you for your purchase and support.
Thanks for replying!
I'll rephrase my question with more details.
Controller: Synido TempoPad C16
DAW: Ableton Live 12.2 Suite
OS: Windows (PowerShell / sendmidi available)
Button mode: Toggle (TC)
Mapping: Live’s MIDI Map (pad → DAW works)
When I toggle Arm Record from the DAW, the corresponding LED on the C16 does not change. It gets out of sync (DAW ON / LED OFF, or vice-versa).
Also, switching banks on the C16 turns all LEDs off, so I lose the visual reference of the DAW state.
C16 should accept host feedback so the LED reflects the parameter state (ON/OFF) even when the change comes from the DAW.
MIDI frames captured when toggling Arm in Live and on the pad (they match):
B0 31 7F (CC#49 ch1 value 127)
B0 31 00 (CC#49 ch1 value 0)
Direct test with sendmidi to the C16 port (no DAW, no routing):
cc 49 127 / cc 49 0 → no LED change
Also tried Note On/Off on ch1/ch2/ch10 → no effect
The vendor app can’t force that LED’s state, and I see no outgoing MIDI when changing options there.
Map a C16 button (CC#49 ch1) to a track’s Arm in Live.
Toggle Arm from Live.
Observe the C16 LED does not change.
Switch Bank on the C16 → all LEDs turn off.
Do C16 LEDs accept host feedback over MIDI (CC/Note), or are they local-only?
If they do, what’s the exact protocol (CC, Note, vendor SysEx?) to set a button LED ON/OFF (controller numbers, values, per-bank channels)?
Is there SysEx/MIDI implementation documentation for LED feedback and bank handling?
Can we prevent bank switching from clearing LEDs, or programmatically re-inject state when returning?
Thanks!
Hello,
We are sorry for the late reply, and hope you can understand.
Here is the answers to your questions:
Q: When I toggle Arm Record from the DAW, the corresponding LED on the C16 does not change. It gets out of sync (DAW ON / LED OFF, or vice-versa).
A: This is normal and not an issue, as the DAW forcibly stops recording on the other track when switching recordings. This is part of the software's internal system control and not external MIDI control. Additionally, the buttons only accept local control.
Q: Switch Bank on the C16 → all LEDs turn off.
A: This issue has been resolved in later firmware versions. You need to perform a firmware upgrade via the Synido software, as the factory default parameters have changed. You must restore the factory default program (procedure: hold down the main control knob, then press and hold the “Up” navigation key).
If you have more questions, please reply us or send to our product manager and after-sales support team ( Email: cs@synido.com) will get back to you. Thank you again for purchasing our product, and wish you have a nice day.
Best wishes,
Synido Team
