From 81eb08a8ed794e5b7da90c49d89b362b1e69e6ba Mon Sep 17 00:00:00 2001
From: Lukas Schoen <qef18hoc@rhrk.uni-kl.de>
Date: Mon, 25 Nov 2024 13:46:56 +0100
Subject: [PATCH] Slave mit Register versehen
---
I2C_slave/platformio.ini | 1 +
I2C_slave/src/main.cpp | 28 ++++++++++++++++++++++++----
2 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/I2C_slave/platformio.ini b/I2C_slave/platformio.ini
index c4b493e..7a2d0e2 100644
--- a/I2C_slave/platformio.ini
+++ b/I2C_slave/platformio.ini
@@ -12,3 +12,4 @@
platform = espressif32
board = esp32doit-devkit-v1
framework = arduino
+monitor_speed = 115200
\ No newline at end of file
diff --git a/I2C_slave/src/main.cpp b/I2C_slave/src/main.cpp
index 65216a7..099f446 100644
--- a/I2C_slave/src/main.cpp
+++ b/I2C_slave/src/main.cpp
@@ -2,20 +2,40 @@
#include <Arduino.h>
char SLAVE_ADRESS = 0x34;
+volatile int currentRegister = 0;
void requestEvent() {
- Wire.write("hi");
+ if (currentRegister == 1){
+ Wire.write("hi");
+ } else if (currentRegister == 2){
+ Wire.write ("ok");
+ } else{
+ Wire.write ("unknown");
+ }
}
+void receiveEvent(int howMany) {
+ Serial.print("Empfangen: ");
+ while (Wire.available()) {
+ currentRegister = Wire.read(); // Lese alle verfügbaren Bytes
+ Serial.print("Register:"); // Gib den Wert aus (ASCII-Wert des Zeichens)
+ Serial.println(currentRegister); // Optional: Trennzeichen
+ }
+ Serial.println(); // Neue Zeile nach Ausgabe
+}
+
void setup() {
- Wire.begin(SLAVE_ADRESS); // join i2c bus with address #8
- Wire.onRequest(requestEvent); // register event
+ Wire.begin(SLAVE_ADRESS);
+ Wire.onReceive(receiveEvent);
+ Wire.onRequest(requestEvent);
+
Serial.begin(115200); // start serial for output
Serial.println("ESP gestartet");
}
void loop() {
- delay(1000);
+ delay(10000);
}
+
--
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