Hawk Sensor Support
What sensors are compatible with the Hawk?
Written by Cameron Everett
Updated at September 17th, 2024
Table of Contents
The Hawk can integrate with essentially “any” sensor.
If a sensor isn't compatible with one of our cards, we can develop one for you (please contact DM Support).
The Hawk offers numerous different inputs including:
- Digital Inputs
- Analog (0-30V) inputs
- 4-20mA
- Bluetooth®
- I2C
- 1-wire
- SDI-12
- RS232
- RS485
Some of these sensor interfaces require custom FW integration, some do not.
Sensor Interfaces that generally do not require Custom FW
Digital Inputs
Digital Inputs can be used for numerous applications on the Hawk.
Doesn't require integration.
Input range: 0-40 DC.
Hawk Baseboard |
1 x Digital Input |
Agtech1 |
1 x Digital Input (IO7) |
RS1 Card |
1 x Digital Input (IO7) |
Serial Card |
2 x Digital Input (IO3 and IO4) |
Bluetooth+ Card |
1 x Digital Input (IO4) |
Digital Card |
5 x Digital Input (IO5, IO6, IO7, IO8, IO9) |
Analog Inputs
Analog inputs are on a variety of our Hawk cards.
Doesn't require integration.
Input Range: 0-30V Input Range.
Agtech2 |
4 x Analog Inputs (IO5, IO6, IO7, IO8) |
RS1 Card |
1 x Analog Input (IO1) |
Serial Card |
1 x Analog Input (IO2) |
Bluetooth+ Card |
1 x Analog Input (IO2) |
Digital Card |
2 x Analog Inputs (IO3, IO4) |
4-20mA
Doesn't require integration.
Some cards have direct 4-20mA inputs.
Otherwise, you can configure 4-20mA readings to be read with an additional resistor wired in.
Agtech1 |
1 x 4-20mA Input (IO9) |
RS1 Card |
1 x 4-20mA Input (IO9) |
Bluetooth+ Card |
1 x 4-20mA Input (IO1) |
RS485
Currently, RS485 is only available on the RS1 card.
We have created a “Generic” Modbus action which should be able to cater to most use cases.
For more information on that, please see:
For help with this configuration, please contact DM Support.
We can also perform a custom integration for specific sensors if required.
For example, please see Custom GA Weather Station Integration
SDI-12
Most SDI-12 tags that follow the spec should work.
However, not just any SDI-12 commands can be used with our devices.
Please see:
Agtech1 |
1 x SDI-12 Input (IO1) |
Agtech2 |
1 x SDI-12 Input (IO2) |
Bluetooth
The Bluetooth+ Card is the only Hawk card that supports Bluetooth
Sensor Interfaces that will require Custom FW
I2C
There are a couple of cards that can interface with I2C sensors.
This interface requires integration.
For a list of I2C sensors that we have integrated with the Hawk, please see the articles in this folder: I2C
Agtech1 |
I2C SDA (IO4) I2C SCL (IO6) |
Bluetooth+ Card |
I2C SDA (IO6) I2C SCL (IO5) |
1-wire
Typically these sensors require integration.
For a list of 1-wire sensors that we have integrated with the Hawk, please see the articles in this folder: 1-Wire
Agtech1 |
1 x 1-wire input (IO8) |
Agtech2 |
1 x 1-wire input (IO4) |
RS1 |
1 x 1-wire input (IO8) |
RS232
Sensors that use RS232 require custom firmware to work with the Hawk.
RS232 is only available on the Serial Card.
If you want to use an RS232 sensor with the Hawk please contact Digital Matter support.
TTL
Sensors that use TTL require custom firmware to work with the Hawk.
TTL is only available on the Serial Card.
If you want to use an TTL sensor with the Hawk please contact Digital Matter support.