Hawk Baseboard + Plug in Cards - Wiring+Pin Out
Written by Matthew Clark-Massera
Updated at January 29th, 2025
Table of Contents
The Hawk is sold as a 'baseboard' and plug-in cards are used to interface to sensors. 8 lines are available. This allows for a variety of sensor-monitoring applications and input combinations to be catered for on the same device. Additionally, if you have a specific set of inputs to monitor, we can manufacture a new IO card to cater for your requirements (MOQs apply).
BaseBoard
This is the HAWK-4G device - Baseboard, housing, Internal LiPo backup battery
The baseboard handles the cellular connectivity, and external power connections and has a single Digital Input available. There are 9 x I/O pins, which are used by the I/O cards. Their function is determined by what card is inserted.
I/O Cards
Allows the device to be connected to various interfaces. Current cards are listed below
Baseboard pinout
The Hawk has the below 12 lines available on its screw in terminal header
-
I/Os 1-9. These I/Os are used by the specific Plug-in-board. Mappings below.
- Hawk standard pins
Current Limits
SWGND: 1A
3.3V Out: 150mA
Vboost (5V/12V): 200mA
I/O Cards
Agtech1
Hawk IO |
Function |
1 |
SDI-12 |
2 |
VBoost |
3 |
Switched Ground Output |
4 |
I²C SDA |
5 |
3.3V output |
6 |
I²C SCL |
7 |
Card Digital Input |
8 |
1-wire input |
9 |
4-20mA |
Agtech2
Hawk IO |
Details |
1 |
SWGND |
2 |
SDI-12 |
3 |
+3.3V OUT |
4 |
1-Wire |
5 |
Analog Input 1 |
6 |
Analog Input 2 |
7 |
Analog Input 3 |
8 |
Analog Input 4 |
9 |
+VBOOST OUT |
RS-1 Card
Hawk IO |
Function |
1 |
Analogue Input 1 |
2 |
VBoost |
3 |
RS485 B |
4 |
RS485 A |
5 |
3.3V output |
6 |
SWGND |
7 |
Card Digital Input |
8 |
1-wire input |
9 |
4-20mA |
Serial Card
Hawk IO |
Details |
1 |
SWGND |
2 |
Analogue Input |
3 |
Digital Input 1 |
4 |
Digital Input 2 |
5 |
RS232 RX |
6 |
RS2332 TX |
7 |
TTL RX |
8 |
TTL TX |
9 |
+VBOOST OUT |
Bluetooth+ Card
Hawk IO |
Details |
1 |
4-20mA Input |
2 |
Analog Input 1 |
3 |
|
4 |
Digital Input 1 |
5 |
I2C Clock (SCL) |
6 |
I2C Data (SDA) |
7 |
|
8 |
|
9 |
Note: The Bluetooth+ Card also has a Bluetooth module: BGM240PA22VNA3.
Digital Card
Hawk IO |
Details |
1 |
+VBOOST OUT |
2 |
SWGND |
3 |
Analog Input 1 |
4 |
Analog Input 2 |
5 |
Digital Input 1 |
6 |
Digital Input 2 |
7 |
Digital Input 3 |
8 |
Digital Input 4 |
9 |
Digital Input 5 |
