Microchip Technology MRF24WB0MA and MRF24WB0MB are the first certified embedded Wi-Fi® modules following the ZeroG acquisition. These 2.4GHz Microchip Technology transceiver modules feature extremely low receive currents for longer battery life. The IEEE 802.11 module firmware has an easy-to-use API driver interface to the Microchip free TCP/IP Protocol stack and to Microchip PIC® microcontrollers. The low-power MRF24WB0MA and MRF24WB0MB embedded Wi-Fi modules remove the complexity and cost of developing RF circuitry and obtaining agency certification. The MRF24WB0MA has an integrated PCB antenna, matching circuitry, and supports Wi-Fi with the free TCP/IP protocol stack. The MRF24WB0MA module connects to hundreds of PIC microcontrollers via a 4-wire SPI interface. These Microchip Technology RF transceiver modules are optimized for use in a variety of applications, including utility and smart energy, consumer electronics, industrial controls, remote device management, retail, and medical / fitness / healthcare.
General Features
- IEEE Std. 802.11-compliant RF Transceiver
- Serialized unique MAC address
- Data Rate: 1 and 2Mbps
- IEEE Std. 802.11b/g/n compatible
- Small size: 21mm x 31mm 36-pin Surface Mount Module
- Integrated PCB antenna (MRF24WB0MA)
- External antenna option (MRF24WB0MB) with ultra miniature coaxial (U.FL) connector
- Range: up to 400m (1300 ft.)
- Easy integration into final product - accelerates product development, provides quicker time to market
- Radio regulation certification for United States (FCC), Canada (IC), Europe (ETSI) and Japan (ARIB)
- Wi-Fi® certified (WFA ID: WFA7150)
- Designed for use with Microchip microcontroller families (PIC18, PIC24, dsPIC33, and PIC32) with downloadable Microchip TCP/IP Stack
Operational Features
- Single operating voltage: 2.7V-3.6V (3.3V typical)
- Temperature Range: 0°C to +70°C Commercial
- Simple, fourwire SPI interface with interrupt
- Low-current consumption:
- TX mode - 154mA (+10dBm typical)
- Hibernate - <0.1μA (typical)
RF/Analog Features
- ISM Band 2.400-2.483.5GHz operation
- 14 Channels selectable individually or domain-restricted
- DSSS Modulation
- Data Rate - 1000 kbps
- -91dBm Typical sensitivity at 1Mbps
- +10dBm Typical output power with control
- Integrated low phase noise VCO, RF frequency synthesizer, PLL loop filter and PA
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Applications
- Utility and Smart Energy
- Consumer Electronics
- Industrial Controls
- Remote Device Management
- Location and Asset Tracking
- Retail
- Medical, Fitness, and Healthcare
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Block Diagram
Performance Capabilities
Microchip DV102411 Wi-Fi® Comm Demo Board combines Microchip's best-in-class 32-bit PIC32 microcontroller family with its low-power MRF24WB0MA agency-certified, IEEE 802.11, embedded Wi-Fi radio transceiver module. Microchip Wi-Fi Comm Demo Board is preloaded with demo software for the user to explore the features of the MRF24WB0MA Wi-Fi module. It is also expandable through an expansion interface that allows the user to extend its functionality by adding various sensor expansion boards. The Microchip Wi-Fi module and TCP/IP stack enable connectivity for control and communication over the Internet. The PIC32 MCU family provides the performance and features to simultaneously process both Wi-Fi communications and a large number of other functions, including audio, graphic displays and touch sensing, and general system command-and-control operations.
Demo Kit Contents
- The Wi-Fi Comm Demonstration Kit contains these items:
- Wi-Fi Comm Demo Board Information Sheet
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Wi-Fi Comm Demo Board Layout
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Demo Board Layout Call-Outs:
- 1. MRF24WMB0MA RF Transceiver module
- 2. PIC32MX695F512H 32-bit microcontroller
- 3. MCP1642 +3.3V Boost regulator
- 4. Three status indicator LEDs
- 5. One push-button switch for user input
- 6. Power ON/OFF slider switch
- 7. 6-pin debug port
- 8. 8-pin sensor port
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