Documentation

// Blink the onboard WS2812 RGB LED on GPIO8.
// Requires the "Adafruit NeoPixel" library (install via Library Manager).

#include <Adafruit_NeoPixel.h>

#define LED_PIN   8
#define NUM_LEDS  1

Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.setBrightness(30);
}

void loop() {
  strip.setPixelColor(0, strip.Color(255, 0, 0)); strip.show(); delay(500);
  strip.setPixelColor(0, strip.Color(0, 255, 0)); strip.show(); delay(500);
  strip.setPixelColor(0, strip.Color(0, 0, 255)); strip.show(); delay(500);
}

// Connect the ESP32-C6 to your 2.4 GHz Wi-Fi network and print its IP.
// In Arduino IDE: Tools > Board > ESP32 Arduino > ESP32C6 Dev Module

#include <WiFi.h>

const char* ssid     = "YOUR_WIFI_SSID";
const char* password = "YOUR_WIFI_PASSWORD";

void setup() {
  Serial.begin(115200);
  delay(1000);

  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println();
  Serial.print("Connected! IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  // nothing here
}

// Scan the I2C bus and report every device address found.
// Default pins: SDA=GPIO6, SCL=GPIO7.

#include <Wire.h>

void setup() {
  Wire.begin(6, 7);
  Serial.begin(115200);
  Serial.println("I2C Scanner");
}

void loop() {
  byte error, address;
  int nDevices = 0;

  Serial.println("Scanning...");
  for (address = 1; address < 127; address++) {
    Wire.beginTransmission(address);
    error = Wire.endTransmission();
    if (error == 0) {
      Serial.print("Found device at 0x");
      if (address < 16) Serial.print("0");
      Serial.println(address, HEX);
      nDevices++;
    }
  }

  if (nDevices == 0) Serial.println("No I2C devices found");
  delay(5000);
}

// Scan for nearby BLE devices and print their addresses and RSSI.
// Uses the built-in NimBLE-Arduino stack included with esp32 board v3.x.

#include <BLEDevice.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>

BLEScan* pBLEScan;
const int scanTime = 5;  // seconds

void setup() {
  Serial.begin(115200);
  BLEDevice::init("");
  pBLEScan = BLEDevice::getScan();
  pBLEScan->setActiveScan(true);
  pBLEScan->setInterval(100);
  pBLEScan->setWindow(99);
}

void loop() {
  Serial.println("Scanning BLE...");
  BLEScanResults results = pBLEScan->start(scanTime, false);
  Serial.printf("Found %d devices\n", results.getCount());
  for (int i = 0; i < results.getCount(); i++) {
    BLEAdvertisedDevice d = results.getDevice(i);
    Serial.printf("  %s  RSSI: %d\n", d.getAddress().toString().c_str(), d.getRSSI());
  }
  pBLEScan->clearResults();
  delay(2000);
}