WisBlock RAK12022 MAX31865 PT100 Temperature Sensor IO Module

The RAK12022 is a PT100 sensor IO module that is optimized for PT100 temperature sensors and uses the MAX31965 Digital Converter. It supports 2-wire, 3-wire, and 4-wire PT100 sensors and offers a SPI interface. The module extends the WisBlock temperature sensor series with an industrial temperature sensor option.

The WisBlock ecosystem from RAK Wireless offers compact and modular solutions to create your own IoT-LoRaWAN nodes. Various CPU, sensor, and IO expansion modules can be mounted on a WisBlock Base Board. Unlike traditional connectors, the modules are screwed onto the base board. This creates a secure and reliable mounting with industrial quality. Thanks to the modular and compact design, WisBlock is particularly suitable for applications in prototype construction in the professional or hobby area. 

Note: The module is connected to a RAK BaseBoard via the 40-pin IO slot. 

Recommended accessories: 

• WisBlock RAK5005-O Base Board
• WisBlock RAK19007 Base Board 2nd Gen
• WisBlock Base Board RAK19010 with Powerslot
• WisBlock Dual IO Base Board RAK19011 with Powerslot

Features: 

• Fully differential VREF inputs 

Documentation: 

• RAK12022 Documentation
• WisBlock Quick Start Guide 
• RAK Wireless Forum

Technical Details: 

• Manufacturer: RAK Wireless 
• Manufacturer SKU: 110192 
• WisBlock connector: WisBlock IO 
• Model: RAK12022 
• Microchips: 1x MCP2518FD, 1x ATA6563 
• Sensor connections: 1x 2-wire, 1x 3-wire, 1x 4-wire  
• Interface: SPI-compatible interface 
• Nominal Temperature Resolution: 15-bit, 0.03125 NC (varies due to RTD non-linearity) 
• RTD chip: MAX31865 
• Total accuracy: max. 0.5 NC (0.05% of full scale) under all operating conditions 
• Maximum conversion time: 21ms 
• Power supply: 3.3V 
• Operating temperature: -40~85°C 
• Dimensions: 25 x 35 x 12.3mm 
• Weight: 7.5g 

Scope of delivery: 

• 1x WisBlock RAK12022 MAX31865 PT100 Temperature Sensor IO Module