Size of message to be sent about mqtt HOT 6 CLOSED

hi, could you show your code? I did not get that.

from mqtt.

Sure.

I have a char array declared as:
char frameRegister[30];

Then, inside a function (which connects to my mqtt server and sends a frame):

for(i = 0; i < 30; i++) {
frameRegister[i] = 0;
}
frameRegister[0] = mac[0];
frameRegister[1] = 3;
frameRegister[2] = 5;
frameRegister[3] = 5;
frameRegister[4] = 6;
frameRegister[5] = 7;
frameRegister[6] = 0;
frameRegister[7] = 255;

client->connect("clientId");
if (client->isConnected()) {
client->publish("frame/service",frameRegister);
}

On mqtt.fx client, I just get the message until 7, no 0 and no 255.

from mqtt.

use like this,

uint8_t frameRegister[30];
....
client->publish("frame/service",frameRegister, sizeof(frameRegister), false, MQTT::QOS0,  NULL);

you have to tell frameRegister size to MQTT client.

from mqtt.

or simple version is this

uint8_t frameRegister[30];
...
client->publish("frame/service",frameRegister, sizeof(frameRegister));

try this.

from mqtt.

@Biribu close this issue?

from mqtt.

Sure.
Thank you @hirotakaster , that resolved my problem.

from mqtt.