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-// ArduinoJson - https://arduinojson.org
-// Copyright © 2014-2026, Benoit BLANCHON
-// MIT License
-//
-// This example shows how to send a JSON document to a UDP socket.
-// At regular interval, it sends a UDP packet that contains the status of
-// analog and digital pins.
-// It looks like that:
-// {
-// "analog": [0, 76, 123, 158, 192, 205],
-// "digital": [1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0]
-// }
-//
-// If you want to test this program, you need to be able to receive the UDP
-// packets.
-// For example, you can run netcat on your computer
-// $ ncat -ulp 8888
-// See https://nmap.org/ncat/
-//
-// https://arduinojson.org/v7/example/udp-beacon/
-
-#include <ArduinoJson.h>
-#include <Ethernet.h>
-#include <SPI.h>
-
-byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
-IPAddress remoteIp(192, 168, 0, 108); // <- EDIT!!!!
-unsigned short remotePort = 8888;
-unsigned short localPort = 8888;
-EthernetUDP udp;
-
-void setup() {
- // Initialize serial port
- Serial.begin(9600);
- while (!Serial)
- continue;
-
- // Initialize Ethernet libary
- if (!Ethernet.begin(mac)) {
- Serial.println(F("Failed to initialize Ethernet library"));
- return;
- }
-
- // Enable UDP
- udp.begin(localPort);
-}
-
-void loop() {
- // Allocate a temporary JsonDocument
- JsonDocument doc;
-
- // Create the "analog" array
- JsonArray analogValues = doc["analog"].to<JsonArray>();
- for (int pin = 0; pin < 6; pin++) {
- // Read the analog input
- int value = analogRead(pin);
-
- // Add the value at the end of the array
- analogValues.add(value);
- }
-
- // Create the "digital" array
- JsonArray digitalValues = doc["digital"].to<JsonArray>();
- for (int pin = 0; pin < 14; pin++) {
- // Read the digital input
- int value = digitalRead(pin);
-
- // Add the value at the end of the array
- digitalValues.add(value);
- }
-
- // Log
- Serial.print(F("Sending to "));
- Serial.print(remoteIp);
- Serial.print(F(" on port "));
- Serial.println(remotePort);
- serializeJson(doc, Serial);
-
- // Send UDP packet
- udp.beginPacket(remoteIp, remotePort);
- serializeJson(doc, udp);
- udp.println();
- udp.endPacket();
-
- // Wait
- delay(10000);
-}
-
-// Performance issue?
-// ------------------
-//
-// EthernetUDP is an unbuffered stream, which is not optimal for ArduinoJson.
-// See: https://arduinojson.org/v7/how-to/improve-speed/
-
-// See also
-// --------
-//
-// https://arduinojson.org/ contains the documentation for all the functions
-// used above. It also includes an FAQ that will help you solve any
-// serialization problem.
-//
-// The book "Mastering ArduinoJson" contains a tutorial on serialization.
-// It begins with a simple example, then adds more features like serializing
-// directly to a file or any stream.
-// Learn more at https://arduinojson.org/book/
-// Use the coupon code TWENTY for a 20% discount ❤❤❤❤❤