Nexstar Hand Controller

river · Post by **river** » Fri Mar 16, 2007 4:02 pm

Have any one here use a newer Nexstar Hand controller (Version 4.10 and above)? How good is the "sync" function?
-- Press "MENU" >> "UTILITIES" >>"VERSION" to see the HC version info

I want to know the PCB version and the processor they used in the new controller for a possible project. Can you help? Thanks.
-- have to open the back cover a little and look at the PCB

http://www.nexstarsite.com/Firmware/ASGTFirmware.htm

Post by **Airconvent** » Fri Mar 16, 2007 10:47 pm

I have the original nexstar so can't help you.
That controller is so old even celestron pretends it does not exist!
All their software upgrades and new controllers onoly support Nexstar "I" and later....sigh...

river · Post by **river** » Sat Mar 17, 2007 3:58 pm

what I am try to find out is do Celestron repleace the old controller with a new procesor and download new firmware to it. Or it is totaly new PCB with new processor.

yanyewkay · Post by **yanyewkay** » Sun Mar 18, 2007 3:07 am

my guess is probably a new pcb design with new MCU that supports EEPROM reprogramming.

river · Post by **river** » Sun Mar 18, 2007 12:50 pm

but some says that both v3.04 and v4.0 have same PCB number "NXW210". If only the PIC is different and the pin assignment remain the same, then I can DIY to replace the PIC and download newer firmware which will perform much better.

I have hot air blower, download cable etc, all I need is to buy a new IC. I enjoy DIY

yanyewkay · Post by **yanyewkay** » Mon Mar 26, 2007 11:28 am

any updates? i would like to chip a leg into this too.. upgrading my v3 to v4 sounds great

river · Post by **river** » Mon Mar 26, 2007 1:34 pm

nop... still waiting..