[hardware] Add ESP8266 Driver

hardware/esp8266Driver/esp8266Driver.ino

@@ -0,0 +1,75 @@
+#include <Adafruit_MCP3008.h>
+#include <ESP8266WiFi.h>
+#include <ESP8266HTTPClient.h>
+
+// Replace these with your WiFi credentials
+const char *ssid = "your_wifi_ssid";
+const char *password = "your_wifi_password";
+
+// Replace with your REST API endpoint
+const char *apiEndpoint = "http://example.com/api/data";
+
+Adafruit_MCP3008 adc;
+
+void setup() {
+  Serial.begin(115200);
+  delay(10);
+
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.println("Connecting to WiFi...");
+  }
+  Serial.println("Connected to WiFi");
+
+  if (!adc.begin(0)) {
+    Serial.println("Couldn't find MCP3004, make sure it's wired correctly!");
+    while (1);
+  }
+}
+
+void loop() {
+  // Read values from all 4 channels of the MCP3004 ADC
+  for (int channel = 0; channel < 4; channel++) {
+    uint16_t adcValue = adc.readADC(channel);
+    Serial.print("Channel ");
+    Serial.print(channel);
+    Serial.print(" ADC Value: ");
+    Serial.println(adcValue);
+
+    // Send the ADC value over WiFi
+    sendValueOverWiFi(channel, adcValue);
+
+    delay(1000);
+  }
+}
+
+void sendValueOverWiFi(int channel, uint16_t value) {
+  // Create WiFiClient object to maintain the connection to the server
+  WiFiClient client;
+
+  // Your API endpoint and HTTP method (POST in this case)
+  HTTPClient http;
+  http.begin(client, apiEndpoint);
+
+  // Add headers
+  http.addHeader("Content-Type", "application/json");
+
+  // Create a JSON payload with the channel and ADC value
+  String jsonPayload = "{\"channel\":" + String(channel) + ",\"value\":" + String(value) + "}";
+
+  // Send the POST request with the JSON payload
+  int httpResponseCode = http.POST(jsonPayload);
+
+  // Check the response
+  if (httpResponseCode > 0) {
+    Serial.print("HTTP Response code: ");
+    Serial.println(httpResponseCode);
+  } else {
+    Serial.print("Error on HTTP request: ");
+    Serial.println(httpResponseCode);
+  }
+
+  // Free resources
+  http.end();
+}