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Figure 1: RAK5005-O WisBlock Base block diagram
Data Bus of RAK5005-O
Figure 2: RAK5005-O WisBlock Base Data Bus
The MCU in the WisBlock Core module offers the I2C, UART, and SPI data buses to the sensor modules. Through
these buses, the MCU can control and retrieve data from the sensors. In addition, the IO module connects to the
USB, GPIO, and ADC buses allowing you to access all of the MCU interfaces.
Some types of MCU have fewer IO pins. In such cases, not all the pins of the data bus are connected. For
example, only I2C and UART are connected. Some MCU IO pins have an alternate function. Then you can modify
its function by software or rework the hardware to redefine the function of IO. Refer to the datasheet of WisBlock
Core to get all the details.
Power Supply Diagram of RAK5005-O