How to update

What's Changed

• ML-powered idle pre-spin: automatically spins up flywheels when motion is detected using on-device ML inference (LogReg + MLP)
• IMU data logging for collecting personalized training data
• USB service mode for uploading custom ML models
• Web UI overhaul: improved WebSerial robustness, progress reporting, and debug trace download
• Python tooling for local model training and personalization

Full Changelog: v2.2.1...v2.3

How to update

What's Changed

• Longer possible rampdown time: increased maximum from 1 second to 3 seconds
• Prevent rollover on idle RPM menu item (so that you don't accidentally overscroll)
• Fix low battery motor glitching: Schmitt-Trigger-like behaviour
• Option to keep revving after firing (can be set per profile up to 2 seconds) (Motor -> Expert)
• Option to keep firing during Semi-Auto as long as the trigger is held (Firing)
• ESC temperature calibration (Device -> Hardware Setup)

Why is v2.2.0 pulled?

There was an issue in the updating procedure on the blaster, which, if you skipped a prior version, had random values in the newly added settings.

How to update

What's Changed

• Option to idle only when the magazine is inserted (suggested by sdchew)
  • This is ON by default
• Joystick Lockout (suggested by h81)
  • Long press UP for 2 seconds to lock or unlock
  • Changing profiles while locked: pull trigger while changing profiles
• Bumped default max. ESC temperature to 100°C on V2
  • Will automatically change to 100°C, unless you have previously changed this setting. Then your setting will remain.

See this guide on how to install firmware updates.

Changes from v2.0.0

• compatibility with Stinger V1 hardware (wherever possible)
• fix voltage display during ESC configuration

Hardware V2: Custom PCB

• Rapid Decay solenoid driver (V2 only)
  • Haptic feedback
  • Automatic timing (closed loop solenoid control)
• Support for larger screen with custom font (ST7789, V2 only)
• Gyro support: many new features (V2 only)
  • Attitude estimate: blaster knows where it is pointing
  • Drop detection
  • Dynamic idling
  • Prevent firing straight up or down
  • Faster standby when not in motion
• Standby (V2 only)
  • Motion or trigger wakeup
  • Configurable inactivity time
  • Manually entering with 3x overturning on home screen
• WS2812 LEDs (V2 only)
• Variable frequency speaker with RTTTL support (V2 only)
  • More precise menu sounds
  • Boot sound
  • Battery warning sounds

General new features / improvements

• Tournament Mode
• Faster and more robust DShot implementation
  • Better EDT support
• Safety features
  • Gyro-enabled features (see above, V2 only)
  • SAFE screen after boot
    • Enter manually with gesture (V2)
    • Enter manually with 3x overturning on home screen (V1)
  • Motor blocked/stall detection
• TOF
  • Faster TOF readings
  • TOF calibration
  • Eliminate/Reduce TOF errors
• Menu improvements
  • Menu reordering
  • Input diagnostics page for nerds
  • Faster menu navigation with rotation gesture in menu
  • Motor idle RPM preview in menu
• Boot selection when holding down the trigger during boot
• Trigger fires faster with better debouncing
• Faster boot
• DMA based (faster) ADC sampling
• Battery calibration
• Flywheel balancing tool / Flywheel tester
• Better ESC passthrough (more reliable, works with AM32 too)

First Release

• Uses dual core RP2040 processor for separation of time-critical and slower code
• High-performance PID controller for RPM matching
  • Highly configurable
  • uses bidirectional DShot
  • low-noise output thanks to adequate filtering
• Analog joystick input
• Menu System with all sorts of settings (performance and usability)
• Profile system to quickly change between different modes
• Magazine detection using VL53L0X TOF-Sensor and dart counter
• 160*80px display
• Storage Mode to discharge full batteries to 3.8V
• Battery detection and warnings
• Extendet DShot Telemetry (EDT) support for overheating warnings (with compatible ESCs)
• fixed point arithmetics for improved computation speed
• ESC Passthrough to configure BLHeli32 and AM32 ESCs

Installation

This version already comes installed on your blaster. To revert back from a newer version or reinstall/install it on a new RP2040, press the "BOOT" button while plugging it in via USB to a computer, and then drag and drop the firmware.uf2 file onto the flash drive that appeared.

Documentation

https://github.com/bastian2001/Stinger-Docs/wiki

Initial Release for Stinger V2

Hardware V2: Custom PCB

• Rapid Decay solenoid driver (V2 only)
  • Haptic feedback
  • Automatic timing (closed loop solenoid control)
• Support for larger screen with custom font (ST7789, V2 only)
• Gyro support: many new features (V2 only)
  • Attitude estimate: blaster knows where it is pointing
  • Drop detection
  • Dynamic idling
  • Prevent firing straight up or down
  • Faster standby when not in motion
• Standby (V2 only)
  • Motion or trigger wakeup
  • Configurable inactivity time
  • Manually entering with 5x overturning on home screen
• WS2812 LEDs (V2 only)
• Variable frequency speaker with RTTTL support (V2 only)
  • More precise menu sounds
  • Boot sound
  • Battery warning sounds

General new features / improvements

• Tournament Mode
• Faster and more robust DShot implementation
  • Better EDT support
• Safety features
  • Gyro-enabled features (see above, V2 only)
  • SAFE screen after boot
    • Enter manually with gesture (V2 only)
  • Motor blocked/stall detection
• TOF
  • Faster TOF readings
  • TOF calibration
  • Eliminate/Reduce TOF errors
• Menu improvements
  • Menu reordering
  • Input diagnostics page for nerds
  • Faster menu navigation with rotation gesture in menu
  • Motor idle RPM preview in menu
• Boot selection when holding down the trigger during boot
• Trigger fires faster with better debouncing
• Faster boot
• DMA based (faster) ADC sampling
• Battery calibration
• Flywheel balancing tool / Flywheel tester
• Better ESC passthrough (more reliable, works with AM32 too)