Visual studio MQTTnet connect Blynk Mqtt

Projects made with Blynk
1

hi
i use library MQTTnet in visual studio for connect Blynk Mqtt. but am not connect. you can help me?
my config in visual
Dim clientOptions = New MqttClientOptionsBuilder() _
.WithTcpServer(“blynk.cloud”, 8883) _
.WithClientId(“TMPL62qRHGNDU”) _
.WithCredentials(“Monitor”, “LJJMeQWvaW8LvF7hEfsNEHlSd9ExdEF6”) _
.WithKeepAlivePeriod(TimeSpan.FromSeconds(45)) _
.WithTimeout(TimeSpan.FromSeconds(60)) _
.WithCleanSession(True) _
.WithTls() _
.Build()
and my Blynk config
#define BLYNK_TEMPLATE_ID “TMPL62qRHGNDU”
#define BLYNK_TEMPLATE_NAME “MQTT TEST”
#define BLYNK_AUTH_TOKEN “LJJMeQWvaW8LvF7hEfsNEHlSd9ExdEF6”
Thank you

2

According to the Blynk documentation, your username should be “device” but you appear to be using “Monitor” instead…

Authentication

MQTT client configuration:

  • ClientID: "" (or any UTF-8 encoded string, up to 64 characters long)

  • Username: "device"

  • Password: BLYNK_AUTH_TOKEN (see Device info)

  • Keepalive: 45 seconds (recommended)

  • Clean Session: True

Pete.

3

“device” Must be put ESP8266 or ESP32 ?

4

No, “device” must be “device” no changes, just the word “device”.

Pete.

5

That is OK. Thank you so mush