diff --git a/README.md b/README.md
index 2660a7c..1305601 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,14 @@ IR sensor to an [InfluxDB](https://www.influxdata.com/products/influxdb-overview
 under `Expert settings`. Contiously visualizing the readings with [Grafana](https://grafana.com/oss/grafana/)
 might help placing the TCRT5000 on your electricity meter to get better readings.
 
+Note that InfluxDB version >=2 requires the Telegraf
+[Socket Listener](https://github.com/influxdata/telegraf/blob/master/plugins/inputs/socket_listener/README.md)
+plugin to process UDP line protocol streams.
+
+<p align="center">
+<img src="assets/influxdb_sensor_data.png" alt="InfluxDB raw sensor data example">
+</p>
+
 ## Contributing
 
 Pull requests are welcome! For major changes, please open an issue first to discuss
diff --git a/assets/influxdb_sensor_data.png b/assets/influxdb_sensor_data.png
new file mode 100644
index 0000000..87ecc37
Binary files /dev/null and b/assets/influxdb_sensor_data.png differ
diff --git a/include/config.h b/include/config.h
index 3c52081..db82659 100644
--- a/include/config.h
+++ b/include/config.h
@@ -77,7 +77,7 @@
 // to make Arduino IDE happy
 // version number is set in platformio.ini
 #ifndef FIRMWARE_VERSION
-#define FIRMWARE_VERSION 223
+#define FIRMWARE_VERSION 224
 #endif
 
 // set default port for MQTT over TLS
diff --git a/src/influx.cpp b/src/influx.cpp
index 39caf0f..152f562 100644
--- a/src/influx.cpp
+++ b/src/influx.cpp
@@ -22,9 +22,9 @@ void send2influx_udp(uint16_t counter, uint16_t threshold, uint16_t pulse) {
     static char measurement[128];
     uint32_t requestTimer = 0;
 
-    // create request with curr2ent/voltage values according to influxdb line protocol
-    // https://docs.influxdata.com/influxdb/v1.7/guides/writing_data/
-    sprintf(measurement, "esp8266_power_meter,device=%s,counter=%d,threshold=%d,pulse=%d\n",
+    // create udp packet containing raw values according to influxdb line protocol
+    // https://docs.influxdata.com/influxdb/v2.4/reference/syntax/line-protocol/
+    sprintf(measurement, "esp8266_power_meter,device=%s counter=%d,threshold=%d,pulse=%d\n",
                 INFLUXDB_DEVICE_TAG, counter, threshold, pulse);
 
     // send udp packet