Not working with Electron

[ckrey]

I try to run a small GPS .ino on an Electron 2G. The same .ino works great on a Photon.

any hints?

mosquitto server logs:

Apr  7 12:52:14 pi2 mosquitto[22768]: New connection from 176.83.137.98 on port 9001.
Apr  7 12:52:14 pi2 mosquitto[22768]: New client connected from 176.83.137.98 as 3a0021000c51343334363138 (c1, k15).
Apr  7 12:52:14 pi2 mosquitto[22768]: Sending CONNACK to 3a0021000c51343334363138 (0, 0)
Apr  7 12:52:36 pi2 mosquitto[22768]: Client 3a0021000c51343334363138 has exceeded timeout, disconnecting.
Apr  7 12:52:36 pi2 mosquitto[22768]: Socket error on client 3a0021000c51343334363138, disconnecting.

[hirotakaster]

I think maybe client side tcp connection going down, server can't send packet to client. Please check and debug line 123 with Serial.println.

        while (!_client->available()) {
            unsigned long t = millis();
            if (t-lastInActivity > MQTT_KEEPALIVE*1000UL) {
                _client->stop();
                Serial.println("can't read from server packet");
                return false;
            }
        }

        uint8_t llen;
        uint16_t len = readPacket(&llen);
        Serial.print("read packet length : ");
        Serial.println("len");

        if (len == 4 && buffer[3] == 0) {
            lastInActivity = millis();
            pingOutstanding = false;
            Serial.println("read packet OK");
            return true;
        }
    }
    Serial.println("read packet fail");
    _client->stop();

[ckrey]

It seems to be a general TCP problem of the electron.

https://community.particle.io/t/solved-electron-tcpclient-weirdness/20771

I did install the beta firmware 0.5.0.-rc1 and had no problem using MQTT afterwards