From 812661547dc8d930b61e5f878a63bdae8c8715eb Mon Sep 17 00:00:00 2001
From: Pascal Serrarens <pascal@passervr.com>
Date: Fri, 28 Feb 2025 12:55:20 +0100
Subject: [PATCH] Uno R4 Wifi support

---
 Arduino/ArduinoUtils.cpp | 12 +++++++++++-
 Arduino/Participant.cpp  | 19 ++++++++++++++++---
 README.md                |  3 +++
 3 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/Arduino/ArduinoUtils.cpp b/Arduino/ArduinoUtils.cpp
index 06e8ff8..dfc197b 100644
--- a/Arduino/ArduinoUtils.cpp
+++ b/Arduino/ArduinoUtils.cpp
@@ -3,14 +3,20 @@
 #if defined(ARDUINO)
 
 #include <Arduino.h>
-#include <HTTPClient.h>
 
 #if defined(ARDUINO_ARCH_ESP8266)
 #include <ESP8266WiFi.h>
 #include <ESP8266httpUpdate.h>
+#include <HTTPClient.h>
+
 #elif defined(ESP32)
+#include <HTTPClient.h>
 #include <HTTPUpdate.h>
 #include <WiFi.h>
+
+#elif defined(UNO_R4)
+#include <WiFi.h>
+
 #endif
 
 const char* hotspotSSID = "Roboid";
@@ -139,6 +145,9 @@ bool StartWifi(const char* wifiSsid, const char* wifiPassword, bool hotspotFallb
 }
 
 void CheckFirmware(String url, String FIRMWARE_NAME, int FIRMWARE_VERSION) {
+#if defined(UNO_R4)  // Uno R4 Wifi does not support this kind of firmware update (as far as I know)
+  return;
+#else
   Serial.println("Checking for firmware updates.");
 
   WiFiClient client;
@@ -188,5 +197,6 @@ void CheckFirmware(String url, String FIRMWARE_NAME, int FIRMWARE_VERSION) {
     Serial.print("Http Error: ");
     Serial.println(httpCode);
   }
+#endif
 }
 #endif
\ No newline at end of file
diff --git a/Arduino/Participant.cpp b/Arduino/Participant.cpp
index db22528..0b98876 100644
--- a/Arduino/Participant.cpp
+++ b/Arduino/Participant.cpp
@@ -7,6 +7,12 @@
 #elif defined(ESP32)
 #include <WiFi.h>
 
+#elif defined(UNO_R4)
+#include <WiFi.h>
+
+#elif defined(ARDUINO_ARCH_RP2040)  // not functional, for future use
+#include <WifiNINA.h>
+
 #endif
 #endif
 
@@ -19,10 +25,17 @@ void Participant::Setup(int localPort, const char* remoteIpAddress, int remotePo
   this->remotePort = remotePort;
   GetBroadcastAddress();
 
+#if defined(UNO_R4)
+  if (WiFi.status() == WL_NO_MODULE) {
+    std::cout << "No network available!\n";
+    return;
+  }
+#else
   if (WiFi.isConnected() == false) {
     std::cout << "No network available!\n";
     return;
   }
+#endif
   udp.begin(localPort);
 
   std::cout << "Wifi sync started to port " << this->remotePort << "\n";
@@ -70,10 +83,10 @@ void Participant::Receive() {
 
 bool Participant::Send(RemoteParticipant* remoteParticipant, int bufferSize) {
 #if defined(ARDUINO)
-// std::cout << "Sending to:\n " << remoteParticipant->ipAddress << ":"
-// << remoteParticipant->port << "\n";
+  // std::cout << "Sending to:\n " << remoteParticipant->ipAddress << ":"
+  // << remoteParticipant->port << "\n";
 
-int n = 0;
+  int n = 0;
   do {
     if (n > 0) {
       std::cout << "Retry sending\n";
diff --git a/README.md b/README.md
index f5cabcc..c9b893e 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,9 @@ Supporting:
 - MacOS
 - Linux
 - Arduino (using PlatformIO)
+    - ESP8266
+    - ESP32
+    - UNO R4 WiFi
 
 # Basic components