@prikrylm Při pátrání po ESC Afro 20A jsem našel
* Afro 20A Muti-Rotor ESC (SimonK Firmware) - Discontinued Product
https://hobbyking.com/en_us/afro-20a-multi-rotor-esc-simonk-firmware.html?___store=en_us
** AfroESC 20A USER MANUAL - Flying Tech
https://www.flyingtech.co.uk/sites/default/files/product_files/AfroESC%2020A%20USER%20MANUAL_0.pdf
kde se píše: The AfroESC series ship with SimonK software,
suitable for multi-rotor use without the need to program or adjust settings
Z čeho vyplývá, že ten tvůj AfroESC 20A je letecký = umí jen jeden směr otáčení?
V některých setech by setový TX mohl do RX posílat jen pulsy
od střed až max. délka (nebo střed až min. délka?
A taky by to taky mohlo jít jen nastavením (bez nutnosti FLASH)
Manuálně se kalibrace provádí: The calibration may be performed manually. First, remove all propellers!
Disconnect the power to the ESCs. Connect the ESC PWM input directly
to the receiver's throttle channel, or to a servo tester.
Set the radio throttle or servo tester to the highest position, then connect power to the ESC.
The motor should produce a series of initialization beeps increasing in pitch,
followed by another beep matching the pitch of the last initialization beep.
This indicates that the calibration mode has been entered, and the pulse length has been learned.
Move the stick or knob to the lowest position. Two beeps of the same pitch should be emitted.
This indicates that the low pulse length has been learned.
If the RC Car-style reversible mode has been enabled (RC_PULS_NEUTRAL),
move the stick or knob to the center, and wait for three beeps.
This indicates that the neutral (center) pulse length has been learned