AstroLink 4 devices were designed and created to make astroimagers life easier. Currently, this family contains two members that have some common functionalities (focuser motor control, regulated PWM outputs, conditions monitoring, switchable outputs, advanced panel software with charts, compensation calculator, alert and protection) but also differ in some aspects.
Common functionalities covered by each family members are:
- focuser motor output (unipolar and bipolar )
- advanced temperature compensation with scripting support
- 3x PWM regulated output to control dew/mirror heaters, fans (40W maximum power per output)
- 3x 12V switchable on/off power output to control setup components (5A maximum current per output)
- temperature and humidity sensors to monitor conditions and control regulated outputs
- monitor voltage, current, and energy consumed
- programmable overcurrent and overvoltage protection
- charts, compensation calculator, alerts
- ASCOM driver with multiple connections available (ASCOM Local Server)
-
AstroLink 4 mini S540.00 zł incl. Vat -
AstroLink 4 USB790.00 zł incl. Vat
AstroLink 4 mini S
This is the first device in the family. Provides all the common functionalities, and additionally:
- DC focuser motor control (compatible with SW motor focus)
- 3-10V regulated voltage output (1.5A maximum current)
- INDI driver
AstroLink 4 USB
This device is integrated with an active UBS3.0 hub. 3 ports are available. Provides all the common functionalities, and additionally:
- integrated, active USB3.0 hub with 3 ports available
- galvanic and optical isolation between the analog and digital parts
- 5V regulated voltage output (3A maximum current combined with USB hub devices)
- microstepping control of focuser motors
- new sensors support (Sensiron and MLX sensors)
- INDI driver is currently developed
Latest software and downloads
Previous software and other downloads
Key features and differences were presented in the table below.
| Feature | AstroLink 4 mini S | AstroLink 4 USB |
|---|---|---|
| Size | 145 x 92 x 28 mm | 162 x 92 x 29 mm |
| Weight | 190 g | 215 g |
| Supply voltage | 11-14 V DC | 11-14 V DC |
| Power consumption | < 1W | < 2W |
| Focuser stepper output | DB9 unipolar, bipolar | RJ12 unipolar, bipolar, microstepping |
| Focuser DC output | RJ9 4 pin, 1.2A max | not available |
| Sensors | DHT22 / DS1820 humidity and temperature sensors | Sensiron SHT3x environmental sensors, MLX sensor |
| Integrated USB hub | not available | USB3.0, 3 ports available, galvanic and optical isolation |
| Regulated PWM outputs | 2x RCA 0-100%, 40W max | 2x RCA 0-100%, 40W max |
| Switchable power outputs | 3 outputs DC 5.5/2.1mm, 5A max. single output | 3 outputs DC 5.5/2.1mm, 5A max. single output |
| 12V permanent output | not available | 1 output DC 5.5/2.1, 5A max. |
| Regulated voltage output | 1 output DC 5.5/2.1mm, 3-10V, 1.5A max. current (2.5A peak) | 1 output DC 5.5/2.1mm, 5V, 3A max (combined with USB outputs) |
| Dedicated panel software | yes | yes |
| ASCOM driver | yes, multiple connections available | yes, multiple connections available |
| INDI driver | yes | development in progress |
