AT86RF231 a IEEE802.15.4-compliant radio at 2.4 GHz
green, red, orange
The M3 Open Node can reset, debug and program the STM32 on JTAG through the FTDI4232H connected to the USB. This component allows also a UART link to the STM32. The Open Node connector gives access to 3 STM32/GPIO and the STM32/I2C. Two power lines are accessible on this connector:
a + 5.0 volts for the board power supply
a 3.3 volts for the consumption monitoring of the STM32, the RF component and the sensors
The M3 Open Node can be used standalone without a gateway connected to the M3 Open node connector. The powering of the board is then assumed by a battery or by the USB connector The choice of the power input is done electronically (power management).