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SLG-20 Retractable Landing Gear Manual
  • Home
  • Safety Notice
  • Operation
    • Operation Overview
    • Control States
    • Input Signal Requirements
    • Parameter System
    • Pre Flight Checks
    • Spring Tension & Replacement
    • Auto Calibration & Servo Insertion
  • Console Interface
    • Using the Console Interface
    • Accessing the Console Interface on Windows
    • Accessing the Console Interface on Mac
  • Firmware and Software
    • Firmware Update Procedure
    • Firmware Releases
    • Loader Releases
  • Installation
    • SLG-20-AX Quick Start Guide
    • SLG-20 Quick Start Guide
    • Mounting and Hole Patterns
    • Electrical
    • Assembling Legs
  • Reference
    • Known Issues
      • Roll Oscillations on New Alta X Model
    • Servo Types
    • Payload Clearance
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  • V1.22 - SLG-20 Stable Firmware
  • V1.21 - SLG-20 Stable Firmware
  • V1.0 - SLG-20 Stable Firmware
  • V0.91 - SLG-20 Stable Firmware
  • V0.8 - SLG-20 Stable Firmware
  • v0.6b - SLG-20 Stable Firmware
  • v0.5b - SLG-20 Beta Firmware

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  1. Firmware and Software

Firmware Releases

Current SLG-20 Firmware Releases

PreviousFirmware Update ProcedureNextLoader Releases

Last updated 1 year ago

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V1.22 - SLG-20 Stable Firmware

Release date 14/12/2023

Minor bugfix release - fixes bug where "param set right_trim xxxx" commands would fail.

V1.21 - SLG-20 Stable Firmware

Release date 30/03/2023

Tweaks calibration procedure for D951TW V2 Servos

V1.0 - SLG-20 Stable Firmware

Release date May 13th 2022

Adds support for D951TW V2 servos

V0.91 - SLG-20 Stable Firmware

Release Date 23/02/2022

Changes since v0.8

  • Reduced power consumption of the control board

If your SLG-20 units shipped with v0.6 or v0.8, there is no need to upgrade

V0.8 - SLG-20 Stable Firmware

Release Data 25/01/2022

Changes since 0.6b:

  • Added support for the HS-7950-TH Servo and ability to select servo type with a parameter

  • Adjusted timing to work for optimally for both servo types

For users on V0.6b, with D951-TW Servos, there is no need to update to this firmware version.

v0.6b - SLG-20 Stable Firmware

Release Date 02/08/2021

Changes since 0.5b:

  • Made a new parameter "fs_ms" which controls the timeout before loss of input signal will trigger a failsafe

  • Fixed a bug where an out of range input signal would cause immediate failsafe rather than waiting for timeout

  • Added a feature where the current draw curve as the legs are raised is saved

  • Added a console command "icurve" to retrieve the current draw curve for analysis

As of 14/10/2021, this firmware is considered the first stable release as no bugs have been found during beta testing.

v0.5b - SLG-20 Beta Firmware

Release Date 02/07/2021

42KB
SLG_20_FW_V1_22.hex
42KB
SLG_20_FW_V1_21.hex
41KB
SLG_20_FW_V1_0.hex
40KB
SLG_20_FW_V0_91.hex
40KB
SLG_20_FW_V0_8.hex
SLG-20 V0.8 Stable Firmware
15KB
SLG_20_FW_V0_6b.zip
archive
SLG-20 V0.6b Stable Firmware
15KB
SLG_20_FW_V0_5b.zip
archive
SLG-20 v0.5b Beta Firmware