Functional prototype!

main/peripherals/uart_serial.cpp

@@ -0,0 +1,64 @@
+//
+// Created by nano on 8/23/26.
+//
+
+#include "uart_serial.h"
+
+#include "esp_err.h"
+#include "driver/uart.h"
+
+void uart_serial::init() {
+	ESP_ERROR_CHECK(uart_driver_install(uart_num, buffer_size * 2, buffer_size * 2, 10, &uart_queue, 0));
+	ESP_ERROR_CHECK(uart_param_config(uart_num, &uart_config));
+
+	ESP_ERROR_CHECK(
+		uart_set_pin(uart_num, tx_pin_num, rx_pin_num, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE,
+			UART_PIN_NO_CHANGE));
+	uart_flush(uart_num);
+}
+
+void uart_serial::write(const char* data, int len) {
+	uart_write_bytes(uart_num, data, len);
+	ESP_ERROR_CHECK(uart_wait_tx_done(uart_num, 100));
+}
+void uart_serial::write_byte(const char* data) {
+	uart_write_bytes(uart_num, data, 1);
+	ESP_ERROR_CHECK(uart_wait_tx_done(uart_num, 100));
+}
+
+int uart_serial::read(char* data, int size) {
+	int length = 0;
+	ESP_ERROR_CHECK(uart_get_buffered_data_len(uart_num,(size_t *) &length));
+	if (length > size) {
+		uart_read_bytes(uart_num,data,size,100);
+		return size;
+	}
+	uart_read_bytes(uart_num,data,length,100);
+	return length;
+}
+
+/*int uart_serial::read_byte(char* data) {
+	int length = 0;
+	ESP_LOGI("sanity check","uart num: %d",uart_num);
+	ESP_ERROR_CHECK(uart_get_buffered_data_len(uart_num,(size_t *) &length));
+	if (length) {
+		uart_read_bytes(uart_num,data,1,100);
+		return 1;
+	}
+	return 0;
+}*/
+
+int uart_serial::read_byte(char* data) {
+	size_t length = 0;
+	esp_err_t err = uart_get_buffered_data_len(this->uart_num, &length);
+	if (err != ESP_OK) {
+		ESP_LOGE("uart_serial", "get_buffered_data_len failed on port %d: %s",
+				  uart_num, esp_err_to_name(err));
+		return 0;
+	}
+	if (length > 0) {
+		int n = uart_read_bytes(uart_num, data, 1, pdMS_TO_TICKS(100));
+		return (n == 1) ? 1 : 0;
+	}
+	return 0;
+}