new module

components/evse_link/include/evse_link_framing.h

@@ -5,14 +5,20 @@
 #include <stdbool.h>
 #include "driver/uart.h"
 
-// UART configuration
-#define UART_PORT        UART_NUM_2
+// UART instance and configuration
+#define UART_PORT        UART_NUM_2     // Usa a UART2
 #define UART_BAUDRATE    115200
 #define UART_RX_BUF_SIZE 256
 
-// GPIO pin assignments for UART
-#define TX_PIN           21  // GPIO21 -> RX on other board
-#define RX_PIN           22  // GPIO22 -> TX on other board
+// GPIO pin assignments for UART (ajuste conforme o hardware)
+#define UART_TXD         17             // TX -> DI do MAX3485
+#define UART_RXD         16             // RX -> RO do MAX3485
+#define UART_RTS         2              // RTS -> DE+RE do MAX3485
+
+// Conveniência: nomes usados no .c
+#define TX_PIN           UART_TXD
+#define RX_PIN           UART_RXD
+#define RTS_PIN          UART_RTS
 
 // Frame delimiters
 #define MAGIC_START           0x7E