FAQ / ESC tuning resources

Videos

• BLHeli32
  • JB/Harrell full series: https://www.youtube.com/playlist?list=PLwoDb7WF6c8kXOyPdBog1wtRcxnXMasUb
  • JB/Harrell desync specific: https://youtu.be/oKcyXR7Yx64 (@21:17)
  • Pawel Spychalski Demag-Compensation: https://youtu.be/c94e9TCCP8Y
  • Kabab micro rampup: https://youtu.be/obObn1oGWmU <– read Mr.ShutterBug's comment as well!
  • JB's variable PWM https://youtu.be/xuQeJA4EGr8
  • Chris Rosser BLHeli32 2021: https://youtu.be/7WeHTb7aBrE
  • Chris Rosser BLHeli32 2024: https://youtu.be/6gv0_jTEYZM
• BlueJay
  • JB's Bluejay vid: https://youtu.be/yEDhnBUFQNI
  • Chris Rosser BlueJay 2024: https://youtu.be/EhYKeZfSQIw (Caveat: Bluejay devs seem to recommend 48khz, and also recommend do not set startup powers to max)
• AM32
  • JB's 32bit AM32 vid: https://youtu.be/yOeVj6P9PSU
  • AM32 Settings Explained playlist by "High Energy Failures": https://www.youtube.com/playlist?list=PLrxUiYCo7HwrIz1uE0aIfNT4GUgVMwc1t
  • Chris Rosser AM32 2024: https://youtu.be/3SHzyUaypFw

Heat

• As MOSFET switching frequency increases, so does heat generation.
• Some reports exist of too hot ESC's/Motors at 128khz PWM depending on the brand/model of the ESC/Motors.

Desyncs

• Desyncs are typically a factor of ESC settings.
• Set Motor Timing to a some static value of personal preference. 23 is good for freestyle. Racers typically use higher values.
• Demag Compensation also a factor but try static timing first, and increase Demag-Comp only as much as needed to resolve.

Racing Considerations

• Demag compensation low saves roughly 7K RPM (20%) on high kv motors. Although off versus low has minimal effect, some prefer OFF. Thanks to @FreedomDuck for this information. (Ultralight 6S 2100kv to 2150kv.)

BLHeli32 (32-bit)

• https://github.com/bitdump/BLHeli/releases
• Some BLHeli_32 ESC's can be flashed with with other firmware, but requires STLink or similar devices and bootloader unlocking. Search for AM32 and/or Escape32 resources on the subject.

BlueJay (8-bit)

• Discord: https://discord.gg/ddyzguPB5t
• https://github.com/bird-sanctuary/bluejay/releases
• Bluejay startup min/max, etc. https://github.com/bird-sanctuary/bluejay/wiki/Setup
• Bluejay config migration: https://github.com/bird-sanctuary/bluejay/wiki/Migrating-from-BLHeli_S
• Configurator: https://esc-configurator.com/
• 24khz=responsive; 96khz=extended-flight-time; 48khz is a balance.
• Some ESC/motors have issue starting up at 96. Bluejay devs recommend 48 and was considering removal of 96.
• whoop's static idle: 9%-14% recommended.

AM32 (32-bit)

• Discord: https://discord.gg/h7ddYMmEVV
• https://github.com/AlkaMotors/AM32-MultiRotor-ESC-firmware/releases
• Configurator: https://am32.ca/
• Wiki: https://wiki.am32.ca/
  • OLD wiki here: https://github.com/AlkaMotors/AM32-MultiRotor-ESC-firmware/wiki
• We are all aware of PWM fixed and PWM Variable (Low/High), but now AM32 adds a "By RPM".

Escape32 (32-bit)

• Discord: https://discord.gg/aed6xdSM5Y
• https://github.com/neoxic/ESCape32

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Helping yourself via Artifical Intelligence

• The important thing here is to always use up-to-date information – PerplexityAI searches the internet.
• The second most important thing here is that A.I. can hallucinate, so take everything with a grain-of-salt.
• Results vary depending how you ask.
• example: https://www.perplexity.ai/search/am32-desyncs-TD2E4lNES5CW7dcuN6Yg3w (notice how AI referenced non-AM32, then was requested to reconsider.)
• example: https://www.perplexity.ai/search/how-to-solve-my-desyncs-when-r-FIt2LTDVSy6dE_NOid7H.Q