Digital ESC firmware for controlling brushless motors in multirotors.

Based on BLHeli_S revision 16.7

Bluejay aims to be an open source successor to BLHeli_S adding several improvements to ESCs with Busy Bee MCUs.

• Digital signal protocol: DShot 150, 300 and 600
• Bidirectional DShot: RPM telemetry
• Selectable PWM frequency: 24, 48 and 96 kHz
• PWM dithering: 11-bit effective throttle resolution
• Power configuration: Startup power and RPM protection
• High performance: Low commutation interference
• Smoother throttle to pwm conversion
• User configurable startup tunes 🎵
• Numerous optimizations and bug fixes

See the project changelog for a list of changes.

Bluejay firmware can be flashed to BLHeli_S compatible ESCs and configured using the following configurator tools:

• ESC Configurator (PWA)
• Bluejay Configurator (Standalone)

You can also do it manually by downloading the release binaries.

See the wiki for documentation.

Any help you can provide is greatly appreciated!

If you have problems, suggestions or other feedback you can open an issue.

You can also join our Discord server to ask questions and discuss Bluejay!

Please see the wiki for instructions on how to build Bluejay from source.