AstroLink 4 additional modules

Microstepping module

Microstepping module

This module can be used if you want to increase precision of the focuser position. When stepper motor is used to set focuser position, then the precision is limited to the number of steps per motor shaft revolution. Usually it is 48 steps for unipolar motors, and 200 or 400 steps for bipolar motors. With microstepping module it is possible to increase this number up to 32 times, because it splits each motor step to 32 microsteps. 

Microstepping module needs to be connected to STEPPER output of AstroLink 4 device and in the focuser settings there needs to be MICROSTEPPING mode selected. Only bipolar motors can be used with microstepping module. The stepper motor that can be used must be low voltage (2-6V), so current limiter will work. Maximum current that can be provided to motor is 1.4A per each coil (for example like this or this stepper motor). When you order microstepping module please select proper current value that will fit to the stepper motor you will use. 

Warning! When stepper motor is controlled with microsteps, then it is always powered, even when idle. Depending on stepper model, it may become warm or even hot. That’s why current limit in microstepping module should not be set to value larger than maximum stepper motor current.

Microstepping module is available at AstroLink category page.

If you have any questions, please contact me.


Voltage regulator

Voltage regulator

Voltage regulator module can be used to power devices that require less than 12V. You do not need any additional supplier, just plug this module to AstroLink DC output and set the voltage that you want – there is small potentiometer inside to adjust output voltage. Maximum continuous current that module can provide is 3A, and maximum peak current is 4A. You can power the module with voltage from 5 to 30V, and the output voltage can be set in a range from 1.25V to 28V. Module is protected for overcurrent and for overheating – it will switch off safely. 

The module can only decrease input voltage – you cannot set output voltage higher than input voltage. If you need such module to increase input voltgate please contact me.

Voltage regulator module is available at AstroLink category page.

If you have any questions, please contact me.


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