Updated Firmware Versions 9T15 and 9T16 Available for EXOS 2 and G11 Mounts #ExploreScientific #FIRMWARE

Jerry Hubbell - Explore Scientific VP Engineering

I have released updated versions of the PMC-Eight firmware for the EXOS 2, G11 and iEXOS 100 mounts.

This update contains a very minor change that corrects a problem when the ExploreStars application sets the mount type based on the FW version code.

ExploreStars was not always detecting the correct version code and setting the mount type accordingly. This applies to the Android and iOS versions of the ExploreStars application. The following firmware version numbers are now the latest. The WDT is the communications watchdog timer that stops the mount after losing communications with the ExploreStars or ASCOM application.

Mount        .eeprom File        Description                      ESGv! Version Code      ExploreStars FW Version Code
G11             9t15_G11             900 mA WDT Enabled      ES6B09T15G11               2,00
G11             9t15a_G11           900 mA WDT Disabled     ES6B09T15AG11             2,00
G11             9t16_G11             1300 mA WDT Enabled    ES6B09T16G11               2,01
G11             9t16a_G11           1300 mA WDT Disabled   ES6B09T16AG11             2,01
EXOS 2       9t15_EXOS2       700 mA WDT Enabled      ES6B09T15EXOS2          2.02    
EXOS 2       9t15a_EXOS2     700 mA WDT Disabled     ES6B09T15AEXOS2        2.02    
iEXOS 100  1A01C_10B_3     600 mA WDT Disabled     ES1A10B3                        2.03


For the G11 and EXOS 2 mounts you need to have a DB9 Serial to USB A Adapter cable, Explore Scientific suggests this one:

The iEXOS 100 only needs a standard mini USB Type B to USB A cable that can be purchased at most any department store that carries phone accessories.

The easiest way to update your firmware is to use Chris Moses' PMC-Eight Configuration Manager Program (version 1.0.3) available in the Files Section under User Contributions:

Just follow the directions under the instructions tab and use the FIRMWARE tab to download and install the firmware:


Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at
1010 S. 48th Street
Springdale, AR 72762

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home

Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!