nacabaro/ESP32-UART-Bridge
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Update src/main.cpp

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Nacho 2025-12-01 23:49:35 +00:00
parent 44a02ad4cb
commit 7154c6f82b
1 changed files with 2 additions and 7 deletions
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9
src/main.cpp
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@ -1,24 +1,19 @@
#include <Arduino.h> #include <Arduino.h>
#define EXTERNAL_RX_PIN 16 // GPIO pin for the external device's TX #define EXTERNAL_RX_PIN 16
#define EXTERNAL_TX_PIN 17 // GPIO pin for the external device's RX #define EXTERNAL_TX_PIN 17
#define BAUD_RATE 115200 #define BAUD_RATE 115200
void setup() { void setup() {
// Initialize communication with the computer (via USB-to-UART chip)
Serial.begin(BAUD_RATE); Serial.begin(BAUD_RATE);
// Initialize communication with the external device (on designated GPIO pins)
Serial2.begin(BAUD_RATE, SERIAL_8N1, EXTERNAL_RX_PIN, EXTERNAL_TX_PIN); Serial2.begin(BAUD_RATE, SERIAL_8N1, EXTERNAL_RX_PIN, EXTERNAL_TX_PIN);
} }
void loop() { void loop() {
// Read from computer (Serial) and send to external device (Serial2)
if (Serial.available()) { if (Serial.available()) {
Serial2.write(Serial.read()); Serial2.write(Serial.read());
} }
// Read from external device (Serial2) and send to computer (Serial)
if (Serial2.available()) { if (Serial2.available()) {
Serial.write(Serial2.read()); Serial.write(Serial2.read());
} }