esphome: on_boot: then: - uart.write: id: uart_id data: 'Hello World' - uart.write: id: uart_id data: [0x00, 0x20, 0x42] uart: - id: uart_id tx_pin: 4 rx_pin: 5 baud_rate: 9600 data_bits: 8 rx_buffer_size: 512 parity: EVEN stop_bits: 2 - id: uart_debug tx_pin: 8 rx_pin: 9 baud_rate: 115200 debug: debug_prefix: "[UART1] " - id: uart_rx_only rx_pin: 17 baud_rate: 1200