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RAK2560 WisNode Sensor Probe IO Datasheet

Overview​

Description​

The Probe IO is an accessory for the Sensor Hub solution platform. It supports modules with various communication protocols like RS-485, SDI-12, 4-20 mA signal, and DI/DO. This accessory can work with RAKwireless modules to ensure the best solution for your project.

NOTE

Product Features​

  • Support one RS-485 device[1]
  • Support one SDI-12 device[1]
  • Support one 4-20 mA device[1]
  • Support two DO (dry contact)[1]
  • Support one DI[1]
  • Supply 5 V / VIN / 24 V (0.5 A) power
  • One-wire protocol[1]
  • Waterproof (IP67-rated for the probe body)
NOTE

[1] - Custom or 3rd party sensors cannot be connected to the Probe IO Sensor Hub. If the desired sensor is not available in the SensorHub Solutions, reach us at support@rakwireless.com and we will check the compatibility of your desired sensor.

Specifications​

Overview​

Dimensions​

The Probe IO dimensions are 74 x 33 x 26 mm. There is one physical port for connection to the Sensor Hub with a 50 cm cable length. The Probe IO is IP67-rated and suitable for outdoor use. The device is designed to meet the UL/EN60950-22 standard.

Figure 11496: RAK2560 WisNode Probe IO dimensions

Block Diagram​

RAK2560's Probe IO uses MCU STM32L051C8 for a control center. The Probe IO supports four (4) types of device interfaces and DI/DO to control or monitor the working environment directly.

Figure 11497: RAK2560 WisNode Probe IO block diagram

Hardware​

The hardware specification is categorized into four (4) parts. It shows the pinouts of the Probe IO and their corresponding functions and diagrams. It also covers the power supply and environmental characteristics that include the tabular data of the functionalities and standard values of the RAK2560 WisNode Probe IO.

Pin Definition​

Connector (Sensor Hub Side)​
Figure 11498: RAK2560 WisNode Probe IO connector
Pin No.NameTypeDescriptionRemarks
1VinPI12 VDC supplyInput 5~16 V
2GND-Ground-
3ReservedIONot definedReserved for future use
4Vcc_ProbePIPower supply for the probe3.3 VDC support mode; 3.4 V battery mode
5One-wire UARTIOCommunication with probe
Probe IO PCBA​
Figure 11499: RAK2560 WisNode Probe IO PCBA pin definition
J1NameDescription
Pin 14485_A+RS-485 port
Pin 15485_B-RS-485 port
Pin 16UART1_TXMCU UART-TX
Pin 17UART1_RXMCU UART-RX
Pin 18GND-
Pin 19GND-
Pin 204-20mA_IN4-20 mA analog in
Pin 21GND-
Pin 22GPIO1MCU GPIO
Pin 23GPIO2MCU GPIO
Pin 24GPIO3MCU GPIO
Pin 25GND-
Pin 26SDI-12_IN-

J6NameDescription
Pin 1DO0_OUTDry contact out
Pin 2DO0_COMDry contact common
Pin 3DO1_OUTDry contact out
Pin 4DO1_COMDry contact common
Pin 5DIDry contact in
Pin 6DI_COMDry contact common
Pin 7DC3v3_OUTSupply 150 mA
Pin 8GND-
Pin 9GND-
Pin 10VINAdapter power
Pin 11GND-
Pin 12DC24VSupply current 1 A
Pin 135V0Supply current 1 A
Standard Type for Probe IO​
Figure 11500: RAK2560 WisNode Probe IO SP11 device side
TypePin 1Pin 2Pin 3Pin 4Pin 5
RS-485VIN/24 VGNDNCB-A+
SDI-12VIN/24 VGNDNCNCData
4-20VIN/24 VGNDNCNCSignal-in
DOVIN/24 VGNDNCDO0_COMDO0_OUT
DIVIN/24 VGNDNCDI_COMDI

Power Supply​

The Probe IO must be supplied through the 3.4 ~ 3.6 V SP11 Pin 4 from the main body of the Sensor Hub. The module's power is only supplied through the VIN / 24 V of SP11 Pin 1.

Power Consumption​
ModeConditionMinTypicalMax
Active modeRead sensor data3.2 mA3.5 mA3.6 mA
Sleep modeSleep mode40 uA60 uA90 uA

Environmental Requirements​

Operating Conditions​
ParameterMinTypicalMax
Normal operating temperature–30° C+25° C+80° C

Sensor Connection Diagram​

The RAK2560 can support both Sensor Probes and Probe IO in all possible combinations.

NOTE

If you buy a Probe IO sensor solution like the soil moisture sensor, you will need a Probe IO to connect it with the Sensor Hub. To integrate an additional Probe IO into your configuration, the Sensor Hub requires an external 12 VDC power supply. It cannot operate on batteries.

Figure 11501: RAK2560 WisNode Probe IO connection schematics

Certification​

ce
fcc
ised