01_BasicUsage.ino

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#ifdef ARDUINO_ESP8266_VERSION
#include <ESP8266WiFi.h>
#else
#include <WiFi.h>
#endif
#include <PseudoMuninNode.h>

// field definitions of munin plugin
PseudoMuninPluginField fields_uptime[] = {
  {
    .name = "uptime",
  },
};

// definitions of munin plugin
PseudoMuninPlugin plugins[] = {
  {
    .name = "uptime",
    // graph args (see http://guide.munin-monitoring.org/en/latest/example/graph/graph_args.html)
    .config = R"(graph_title Uptime
graph_category system
graph_args --base 1000 --lower-limit 0
graph_scale no
graph_vlabel uptime in milliseconds
uptime.label uptime [ms]
uptime.draw AREA)",
    .fields = fields_uptime,
    .numberOfFields = 1,
  },
};

// pseudo munin-node instance
PseudoMuninNode node = {
  .plugins = plugins,
  .numberOfPlugins = 1
};

constexpr char WIFI_SSID[] = "your_wifi_ssid";
constexpr char WIFI_PASSPHRASE[] = "your_wifi_passphrase";

void setup()
{
  Serial.begin(115200);
  while (!Serial);

  // setup WiFi
  WiFi.begin(WIFI_SSID, WIFI_PASSPHRASE);

  while (WiFi.status() != WL_CONNECTED)
    delay(100);

  // begin pseudo munin-node
  node.begin();
}

void loop()
{
  // update the value of 'uptime' field
  fields_uptime[0].value = millis();

  // wait a request from munin-update; respond commands and return values of field
  node.acceptClient();

  // write your own code here
  delay(100);
}