Upload files to "src/i2c/esp32c3_master_i2c"

src/i2c/esp32c3_master_i2c/esp32c3_master_i2c.ino

@@ -1,77 +1,77 @@
-#include <Wire.h>
-#include <Adafruit_GFX.h>
-#include <Adafruit_SSD1306.h>
-
-#define SCREEN_WIDTH 128
-#define SCREEN_HEIGHT 32
-#define OLED_RESET    -1 // No reset pin
-#define OLED_ADDR     0x3C
-
-Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
-
-// NEW Datatype For State
-enum _state { NOT_READY, READY, SENDING };
-
-// Variables
-_state  state = NOT_READY;
-
-void setup() {
-
-  // Serial
-  Serial.begin(115200);
-
-  // Initialize I2C bus (ESP32-C3 default pins)
-  Wire.begin();
-
-  // Scan I2C devices
-  Serial.println("Scanning I2C devices...");
-
-  // Scan I2C
-  scanI2C();
-
-  // Initialize OLED
-  if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {
-    Serial.println("SSD1306 allocation failed");
-    while(1);
-  }
-
-  // Print On Display
-  oled_write("Hello, ESP32-C3!");
-
-}
-
-void loop() {
-
-  // Send Tex Message To Slave
-  i2c_send_string(0x55, Question("String Message"));
-
-  // Request Data
-  Wire.requestFrom(0x55, 1);
-
-  // Read Data Available
-  if(Wire.available()) {
-    if(char(Wire.read()) == 'N') {
-      Serial.println("Requested Data : Not Ready");
-      state = NOT_READY;
-    } else {
-      Serial.println("Requested Data : Ready");
-      state = READY;
-    }
-  }
-
-  // Request Data
-  Wire.requestFrom(0x55, 6);
-
-  // Prepare 6 Bytes Of Data
-  uint8_t data[6];
-
-  // Read Data Available
-  if(Wire.available()) {
-    for(int i=0; i<6; i++) {
-      data[i] = Wire.read();
-      Serial.print(char(data[i]));
-    }
-    Serial.println();
-  }
-
-}
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 32
+#define OLED_RESET    -1 // No reset pin
+#define OLED_ADDR     0x3C
+
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+// NEW Datatype For State
+enum _state { NOT_READY, READY, SENDING };
+
+// Variables
+_state  state = NOT_READY;
+
+void setup() {
+
+  // Serial
+  Serial.begin(115200);
+
+  // Initialize I2C bus (ESP32-C3 default pins)
+  Wire.begin();
+
+  // Scan I2C devices
+  Serial.println("Scanning I2C devices...");
+
+  // Scan I2C
+  scanI2C();
+
+  // Initialize OLED
+  if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {
+    Serial.println("SSD1306 allocation failed");
+    while(1);
+  }
+
+  // Print On Display
+  oled_write("Hello, ESP32-C3!");
+
+}
+
+void loop() {
+
+  // Send Tex Message To Slave
+  i2c_send_string(0x55, Question("String Message"));
+
+  // Request Data
+  Wire.requestFrom(0x55, 1);
+
+  // Read Data Available
+  if(Wire.available()) {
+    if(char(Wire.read()) == 'N') {
+      Serial.println("Requested Data : Not Ready");
+      state = NOT_READY;
+    } else {
+      Serial.println("Requested Data : Ready");
+      state = READY;
+    }
+  }
+
+  // Request Data
+  Wire.requestFrom(0x55, 6);
+
+  // Prepare 6 Bytes Of Data
+  uint8_t data[6];
+
+  // Read Data Available
+  if(Wire.available()) {
+    for(int i=0; i<6; i++) {
+      data[i] = Wire.read();
+      Serial.print(char(data[i]));
+    }
+    Serial.println();
+  }
+
+}

src/i2c/esp32c3_master_i2c/functions.ino

@@ -0,0 +1,51 @@
+  // Question
+  String Question(String Message) {
+    
+    Serial.print(Message + " : ");
+    while(!Serial.available());
+
+    Message = Serial.readStringUntil('\n');
+    while(Serial.available()) Serial.read();
+    Message.trim();
+    Serial.println(Message);
+    return Message;
+
+  }
+
+  // OLED Display
+  void oled_write(String message) {
+    display.clearDisplay();
+    display.setTextSize(1);
+    display.setTextColor(SSD1306_WHITE);
+    display.setCursor(0, 0);
+    display.println(message);
+    display.display();
+  }
+
+  // I2C Scanner
+  void scanI2C() {
+
+    byte error, address;
+    int nDevices = 0;
+
+    for(address = 1; address < 127; address++ ) {
+      Wire.beginTransmission(address);
+      error = Wire.endTransmission();
+      if (error == 0) {
+        Serial.print("I2C device found at address 0x");
+        if (address<16) Serial.print("0");
+        Serial.println(address, HEX);
+        nDevices++;
+      } else if (error==4) {
+        Serial.print("Unknown error at address 0x");
+        if (address<16) Serial.print("0");
+        Serial.println(address, HEX);
+      }
+    }
+
+    if (nDevices == 0)
+      Serial.println("No I2C devices found");
+    else
+      Serial.println("Scan complete");
+
+  }

src/i2c/esp32c3_master_i2c/i2c_functions.ino

@@ -0,0 +1,22 @@
+
+  // This Function If Called Sends A Text Message Via I2C
+  void i2c_send_string(uint8_t Slave, String message) {
+  
+    // Sending Data
+    Wire.beginTransmission(Slave);
+
+    // First Data Byte Is Length
+    Wire.write(message.length());
+
+    // Second Send Data One Byte At A Time
+    for(int i=0; i<message.length(); i++) {
+      
+      // Send String Bits
+      Wire.write(message[i]);
+
+    }
+
+    // Finally Closing Transmission
+    Wire.endTransmission();
+
+  }