Fig. 8. (Color online) (a) The Raspberry Pi Pico has a limited number of ADC, UART (TX, RX) and I2C (SDA, SCL) channels that it can support. For further details on the assigned communication channels, please refer to the official Pico documentation. (b) The sensors and displays were connected to the Raspberry Pi Pico, an embedded system, and monitored and controlled using micro-python. In this figure, the micro-USB connection was used for testing the 5V voltage supply, not for communication. The communication with a desktop computer was conducted through the GPIO port using UART protocol and voltage supply.
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