A single module that carries Wi-Fi 6, Bluetooth Low Energy, and its own 260MHz microcontroller changes what a "wireless add-on" can be. NXP's new RW610FML does exactly that, folding the radio and a full Arm Cortex-M33 core into one part small enough to drop onto a sensor node or a classroom robot.
What NXP actually built
The RW610FML is a combo module built around the RW610 system-on-chip. It speaks IEEE 802.11a/b/g/n/ac/ax for Wi-Fi 6 and Bluetooth LE in the same package, so one part handles both radios instead of bolting on two separate chips. The interesting twist for makers is that the on-board Cortex-M33 can either sit quietly as a communications coprocessor next to your main MCU, or run the whole show itself and drive your hardware directly. That flexibility means a thesis project could start with the module offloading Wi-Fi from an existing Arduino, then later collapse into a single-chip design once you trust the RW610 to handle GPIO, PWM, and sensor reads on its own.
The specs that matter
The Cortex-M33 runs at up to 260MHz with 1.2MB of on-chip SRAM and 8MB of flash, plus quad-SPI execute-in-place support if you want to run code straight from external flash. The Wi-Fi 6 radio is a 1x1 dual-band design covering 2.4GHz and 5GHz at 20MHz channel width, peaking at 114Mb/s, while the BLE side hits 2Mb/s in high-speed mode. Peripheral coverage is generous: SDIO 3.0, USB, UART, I2C, SPI, I2S, ADCs and DACs, an analog comparator, and JTAG plus SWD for debugging. There is even an LCD interface and a microphone input, which opens the door to voice or display projects without extra breakout boards.
Build it yourself
The part is still in pre-production, so pricing has not been posted yet. If you want to prototype now, NXP pairs the module with a carrier board called the FRDM-RW610FML that breaks out the peripheral pins for easy breadboard and jumper access. A practical first build: wire an I2C temperature sensor to the module, publish readings over MQTT on your school Wi-Fi, and use the spare BLE radio to push the same data to a phone. Watch the 3.3V logic levels on your sensor lines, and check the pull-up requirements on the I2C bus before you power up. Full details on both the module and the FRDM board are on NXP's product page.
Originally published on blog.circuit.rocks.
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