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The hardware configuration is:
An AVR MCU( ATmega128) is used for the generate the driver signal and computing
Three motor stepper driver chip is used for driver the motor.
One 16*2 charactor is used to display
And some logic chip for decode the PISCO(K3CCD) guide signal.
The AVR ATmega128 has powerful functions. It has 4kBYTES EEPROM inside so that you can save some user defined value,like the gear tooth.So it is only any support the 144teeth mount,it support any tooth.It support 1.8degree,0.9degree,7.5degree etc motors.
This MCU has 128kBytes Flash for the firware,and allow bootloader.If you can use C language, you can programme you own function into it.The firware source is opened.
Three motor can be configed to be RA,DEC,FOCUS for EQ mount, or AL,AT,filed rotator for DOB.
This controller has a extra IO port.It output the singal to control the extra motor driver board. If you do not want to use the driver chip on this board, and want to use some other driver box, like 5 phyase motor driver ,or high power driver,like 3A 1/256 microstep driver.You can connect this port to the extra driver board. The output port include 2 sets control singal,each set include:
Direction signal
Clock signal
Motor Enable signal
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