Initial commit

client/src/main.cpp

@@ -0,0 +1,66 @@
+#include <Arduino.h>
+#include <WiFi.h>
+#include <WiFiClient.h>
+
+#include "secrets.h"
+
+// Default IP address = 192.168.4.1
+
+#define HOST "192.168.4.1"
+#define PORT 1234
+
+void setup()
+{
+	Serial.begin(9600);
+	Serial.setDebugOutput(true);
+
+	pinMode(2, OUTPUT);
+
+	// Wait for a USB connection to be established
+	while (!Serial)
+		(void)0;
+	delay(1000);
+	Serial.println("Client booted!");
+
+	// Connect to button server
+	WiFi.begin(SSID, PASSWORD);
+	Serial.print("Connecting");
+	while (WiFi.status() != WL_CONNECTED) {
+		delay(500);
+		Serial.print(".");
+	}
+	Serial.println("\nConnected to AP");
+}
+
+void loop()
+{
+	digitalWrite(2, HIGH);
+	delay(500);
+	digitalWrite(2, LOW);
+	delay(500);
+
+	Serial.println("ESP32 loopy!");
+
+	WiFiClient client;
+	if (client.connect(HOST, PORT)) {
+		client.print("button_pressed\n");
+		Serial.println("Sent button press");
+
+		while (client.connected()) {
+			if (client.available()) {
+				// Wait for acknowledgment from the receiver
+				String response = client.readStringUntil('\n');
+				if (response == "ACK") {
+					Serial.println("Received ACK");
+					break;
+				}
+			}
+		}
+
+		delay(2000);
+		client.stop();
+	}
+	else {
+		Serial.println("Connection failed");
+	}
+}

client/src/secrets.h.example

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+#pragma once
+
+#define SSID "EXAMPLE"
+#define PASSWORD "12345678"