Added C++ API + example

Author: mathiasbredholt

examples/Example_CppApi/Example_CppApi.ino

@@ -0,0 +1,57 @@
+#include <WiFi.h>
+#include <mapper_cpp.h>
+
+#include <string>
+#include <vector>
+#include <algorithm>
+
+using namespace mapper;
+
+// For disabling power saving
+#include "esp_wifi.h"
+
+const char* ssid     = "WIFI_SSID";
+const char* password = "WIFI_PASSWORD";
+
+const int NUM_SIGNALS = 32;
+
+Device* dev;
+std::vector<Signal> signals;
+
+void setup() {
+  Serial.begin(115200);
+
+  // Begin WiFi before creating mapper device
+  WiFi.begin(ssid, password);
+
+  // Disable WiFi power save (huge latency improvements)
+  esp_wifi_set_ps(WIFI_PS_NONE);
+
+  // Wait for connection
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+
+  dev = new Device("ESP32");
+  for (int i = 0; i < NUM_SIGNALS; ++i) {
+    std::ostringstream sigName;
+    sigName << "test" << i;
+    float min = 0.0f;
+    float max = 5.0f;
+    signals.push_back(dev->add_signal(Direction::OUTGOING, sigName.str(), 1,
+                                      Type::FLOAT, "V", &min, &max));
+  }
+}
+
+void loop() {
+  dev->poll();
+  for (int i = 0; i < NUM_SIGNALS; ++i) {
+    signals[i].set_value(i);
+  }
+}

mapper_cpp.h

@@ -0,0 +1 @@
+#include "mapper/mapper_cpp.h"

src/mapper_cpp.h

@@ -0,0 +1 @@
+#include "mapper/mapper_cpp.h"

update-library.sh

@@ -5,6 +5,7 @@ rm -rf src
 mkdir src
 
 cp mapper.h src/mapper.h
+cp mapper_cpp.h src/mapper_cpp.h
 
 mkdir -p tmp
 cd tmp