Asset Interfaces

Both the Astronode Satellite Board and Astronode Wi-Fi Board feature the same three interfaces. In order to understand which interface fits bests for you in which development phase, please refer to the following table:

Interface	Connector Sat/Wi-Fi	Description	Typical use case
UART	J2/J501	FTDI cable compatible connector with 3.3V UART serial interface and 3.3V power line	Experimenting within a convenient distance to your computer using the supplied 1.8m UART cable
RS232	J1/J500	FTDI cable compatible connector with 5.0V RS232 serial interface and 5.0V power line	Experimenting with a longer cable range from your computer, eventually having the Astronode Satellite Board outside with a view to the sky using the supplied 5m RS232 cable
Asset	P1/P400	Full asset interface with power supply, Astronode S GPIO pins, and 3.3V UART serial interface	Connect the DevKit directly to your asset or test setup and experience the full low power and interrupt capabilities of the Astronode S

UART interface

Board to cable 7-pin connector with a 2.54mm pitch. Compatible with the supplied 1.8m UART FTDI cable for connecting the DevKit to your computer. Use the FTDI virtual COM port on your computer for serial communication.

caution

The FTDI cable provided has a higher power rating than standard FTDI cables available off the shelf. The Astronode Satellite Board will not work properly with other cables than the one provided by Astrocast

Use Case

Use this interface if you want to experiment within a convenient distance to your computer with both the DevKit boards. The connection is easy to set up on one of your computer's USB slots and will provide communication as well as 3.3V power supply to the DevKit.

For communication with the DevKit the following options are available:

• The Astronode GUI
• A serial console (like PuTTY)
• A Python Script

Connector identification

Wi-FI board	Satellite board
J501	J2

Pin-out

#	PIN	Description
1	N.C.	N/A
2	TX	DevKit data Tx line
3	RX	DevKit data Rx line
4	3V3	3.3V
5	N.C.	N/A
6	GND	Ground

RS232 interface

Board to cable 4-pin connector with a 1.27mm pitch. Compatible with the supplied 5m RS232 FTDI cable for connecting the DevKit to your computer. Use the FTDI virtual COM port on your computer for serial communication.

Use Case

Use this interface if you want to experiment within a longer distance to your computer with both the DevKit boards. The connection is easy to set up on one of your computer's USB slots and will provide communication as well as 5V power supply to the DevKit. The longer cable makes it possible to position the Astronode Satellite Board outside with view to the sky while having your computer inside a room.

info

You can't use the sleep mode low power capability of the Astronode S while using the RS232 interface. Not suitable for battery powered applications

For communication with the DevKit the following options are available:

• The Astronode GUI
• A serial console (like PuTTY)
• A Python Script

Connector identification

Wi-FI board	Satellite board
J500	J1

Pin-out

#	PIN	Description
1	TX	DevKit data Tx line
2	RX	DevKit data Rx line
3	5V0	5V
4	GND	Ground

Asset Interface

Board to cable 10-pin connector with a 2.54mm pitch. Use this connector to interface the DevKit with your own application with access to the complete Astronode S electrical interface.

Use Case

With access to the complete Astronode S electrical interface you can develop production firmware for your application before even integrating the Astronode S into your electronics. Use the Asset interface to connect the DevKit to the MCU and power supply of your own system.

Connector identification

Wi-FI board	Satellite board
P400	P1

Pin-out

#	PIN	Description
1	GND	Ground
2	ANT_USE	Antenna in use
3	3V3	3.3V
4	RX	DevKit data Rx line
5	TX	DevKit data Tx line
6	GND	Ground
7	WAKEUP	Wake-up pin
8	3V3	3.3V
9	EXT_RST	Reset
10	EVENT	Event notification