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Xinyuan-LilyGO / LilyGO-T-A76XX

LilyGo A7670 A7608 SIM7672 series
MIT License
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Issues with MqttsBuiltlnAWS.ino example #103

Open zanemcmorris opened 2 months ago

zanemcmorris commented 2 months ago

Hello,

I cannot use your example for this board to connect to my AWS Thing instance. There doesn't seem to be an explicit start to connecting to LTE, which I think is the primary cause of the following error. I have pasted the entire output of the vanilla program below.

`=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2024.04.27 20:26:02 =~=~=~=~=~=~=~=~=~=~=~=
ets Jul 29 2019 12:21:46

rst:0x1 (POWERON_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
Start Sketch
Start modem...
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT

+CPIN: READY
AT

*ATREADY: 1
AT
OK

AT+CPIN?
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT+CPIN?
+CPIN: READY

OK
SIM card online
AT+CNMP=2

SMS DONE
AT+CNMP=2
OK
AT+CNMP?
AT+CNMP?
+CNMP: 2

OK
Current network mode : AUTO
Wait for the modem to register with the network.AT+CGREG?
AT+CGREG?
+CGREG: 0,11

OK
Registration Status:11

Registration Status:11
AT+CPSI?
AT+CPSI?
+CPSI: NO SERVICE,Online

OK
Inquiring UE system information:NO SERVICE,Online
AT+NETOPEN
AT+NETOPEN
ERROR
Enable network failed!
AT+IPADDR

+CGEV: EPS PDN ACT 1
AT+IPADDR
+IP ERROR: Network not opened

ERROR
Network IP:
AT+CMQTTSTART
AT+CMQTTSTART
OK

+CMQTTSTART: 0

PB DONE
Connecting to a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.comAT+CCERTDOWN="ca_cert.pem",1199
AT+CCERTDOWN="ca_cert.pem",1199
>
-----BEGIN ROOT CERTIFICATE-----
<private>
-----END ROOT CERTIFICATE-----

OK
AT+CSSLCFG="cacert",0,"ca_cert.pem"
AT+CSSLCFG="cacert",0,"ca_cert.pem"
OK
AT+CCERTDOWN="cert.pem",1221
AT+CCERTDOWN="cert.pem",1221
>
-----BEGIN CERTIFICATE-----
<private>
-----END CERTIFICATE-----

OK
AT+CSSLCFG="clientcert",0,"cert.pem"
AT+CSSLCFG="clientcert",0,"cert.pem"
OK
AT+CCERTDOWN="key_cert.pem",1676
AT+CCERTDOWN="key_cert.pem",1676
>
-----BEGIN RSA PRIVATE KEY-----
<private>
-----END RSA PRIVATE KEY-----

OK
AT+CSSLCFG="clientkey",0,"key_cert.pem"
AT+CSSLCFG="clientkey",0,"key_cert.pem"
OK
AT+CSSLCFG="sslversion",0,4
AT+CSSLCFG="sslversion",0,4
OK
AT+CMQTTSSLCFG=0,0
AT+CMQTTSSLCFG=0,0
OK
AT+CSSLCFG="authmode",0,2
AT+CSSLCFG="authmode",0,2
OK
AT+CMQTTREL=0
AT+CMQTTREL=0
+CMQTTREL: 0,20

ERROR
AT+CMQTTACCQ=0,"iot24_zami_GPSTracker ",1
AT+CMQTTACCQ=0,"iot24_zami_GPSTracker ",1
OK
AT+CMQTTCONNECT=0,"tcp://a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.com:8883",60,1
AT+CMQTTCONNECT=0,"tcp://a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.com:8883",60,1
+CMQTTCONNECT: 0,34

ERROR
Failed!
`

I attempted to fix this issue by calling modem.gprsConnect("hologram", "", ""); before the check for registration, resulting in the following program

`/**
 * @file      MqttsBuiltlnAWS.ino
 * @author    Lewis He (lewishe@outlook.com)
 * @license   MIT
 * @copyright Copyright (c) 2023  Shenzhen Xin Yuan Electronic Technology Co., Ltd
 * @date      2023-11-28
 * @note
 * * * Example is suitable for A7670X/A7608X/SIM7672 series
 * * Connect MQTT Broker as https://aws.amazon.com/campaigns/IoT
 * * Example uses a forked TinyGSM <https://github.com/lewisxhe/TinyGSM>, which will not compile successfully using the mainline TinyGSM.
 * *!!!! When using ESP to connect to AWS, the AWS IOT HUB policy must be set to all devices, otherwise the connection cannot be made.
 * *!!!! When using ESP to connect to AWS, the AWS IOT HUB policy must be set to all devices, otherwise the connection cannot be made.
 * *!!!! When using ESP to connect to AWS, the AWS IOT HUB policy must be set to all devices, otherwise the connection cannot be made.
 * *!!!! When using ESP to connect to AWS, the AWS IOT HUB policy must be set to all devices, otherwise the connection cannot be made.
 * *Youtube : https://youtu.be/am-rTDzm4lQ
 * */
#define TINY_GSM_RX_BUFFER          1024 // Set RX buffer to 1Kb

// See all AT commands, if wanted
#define DUMP_AT_COMMANDS

#include "utilities.h"
#include <TinyGsmClient.h>
#include "certs/AWSClientCertificate.h"
#include "certs/AWSClientPrivateKey.h"
#include "certs/AmazonRootCA.h"

#ifdef DUMP_AT_COMMANDS  // if enabled it requires the streamDebugger lib
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, Serial);
TinyGsm modem(debugger);
#else
TinyGsm modem(SerialAT);
#endif

// MQTT details
// The URL of xxxxxxx-ats.iot.ap-southeast-2.amazonaws.com can be found in the settings for endpoint in your AWS IOT Core account
const char *broker = "a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.com";
const uint16_t broker_port = 8883;
const char *clien_id = "iot24_zami_GPSTracker ";

// Replace the topic you want to subscribe to
const char *subscribe_topic = "zami_gps/data";
// Replace the theme you want to publish
const char *publish_topic = "zami_gps/data";

// Current connection index, range 0~1
const uint8_t mqtt_client_id = 0;
uint32_t check_connect_millis = 0;

void mqtt_callback(const char *topic, const uint8_t *payload, uint32_t len)
{
    Serial.println();
    Serial.println("======mqtt_callback======");
    Serial.print("Topic:"); Serial.println(topic);
    Serial.println("Payload:");
    for (int i = 0; i < len; ++i) {
        Serial.print(payload[i], HEX); Serial.print(",");
    }
    Serial.println();
    Serial.println("=========================");
}

bool mqtt_connect()
{
    Serial.print("Connecting to ");
    Serial.print(broker);

    bool ret = modem.mqtt_connect(mqtt_client_id, broker, broker_port, clien_id);
    if (!ret) {
        Serial.println("Failed!"); return false;
    }
    Serial.println("successed.");

    if (modem.mqtt_connected()) {
        Serial.println("MQTT has connected!");
    } else {
        return false;
    }
    // Set MQTT processing callback
    modem.mqtt_set_callback(mqtt_callback);
    // Subscribe to topic
    modem.mqtt_subscribe(mqtt_client_id, subscribe_topic);

    return true;
}

void setup()
{
    Serial.begin(115200); // Set console baud rate

    Serial.println("Start Sketch");

    SerialAT.begin(115200, SERIAL_8N1, MODEM_RX_PIN, MODEM_TX_PIN);

#ifdef BOARD_POWERON_PIN
    pinMode(BOARD_POWERON_PIN, OUTPUT);
    digitalWrite(BOARD_POWERON_PIN, HIGH);
#endif

    // Set modem reset pin ,reset modem
    pinMode(MODEM_RESET_PIN, OUTPUT);
    digitalWrite(MODEM_RESET_PIN, !MODEM_RESET_LEVEL); delay(100);
    digitalWrite(MODEM_RESET_PIN, MODEM_RESET_LEVEL); delay(2600);
    digitalWrite(MODEM_RESET_PIN, !MODEM_RESET_LEVEL);

    pinMode(BOARD_PWRKEY_PIN, OUTPUT);
    digitalWrite(BOARD_PWRKEY_PIN, LOW);
    delay(100);
    digitalWrite(BOARD_PWRKEY_PIN, HIGH);
    delay(100);
    digitalWrite(BOARD_PWRKEY_PIN, LOW);

    // Check if the modem is online
    Serial.println("Start modem...");

    int retry = 0;
    while (!modem.testAT(1000)) {
        Serial.println(".");
        if (retry++ > 10) {
            digitalWrite(BOARD_PWRKEY_PIN, LOW);
            delay(100);
            digitalWrite(BOARD_PWRKEY_PIN, HIGH);
            delay(1000);
            digitalWrite(BOARD_PWRKEY_PIN, LOW);
            retry = 0;
        }
    }
    Serial.println();

    // Check if SIM card is online
    SimStatus sim = SIM_ERROR;
    while (sim != SIM_READY) {
        sim = modem.getSimStatus();
        switch (sim) {
        case SIM_READY:
            Serial.println("SIM card online");
            break;
        case SIM_LOCKED:
            Serial.println("The SIM card is locked. Please unlock the SIM card first.");
            // const char *SIMCARD_PIN_CODE = "123456";
            // modem.simUnlock(SIMCARD_PIN_CODE);
            break;
        default:
            break;
        }
        delay(1000);
    }

    //SIM7672G Can't set network mode
#ifndef TINY_GSM_MODEM_SIM7672
    if (!modem.setNetworkMode(MODEM_NETWORK_AUTO)) {
        Serial.println("Set network mode failed!");
    }
    String mode = modem.getNetworkModes();
    Serial.print("Current network mode : ");
    Serial.println(mode);
#endif
    // Connect to LTE using hologram APN and SIM card
    modem.gprsConnect("hologram", "", "");

    // Check network registration status and network signal status
    int16_t sq ;
    Serial.print("Wait for the modem to register with the network.");
    RegStatus status = REG_NO_RESULT;
    while (status == REG_NO_RESULT || status == REG_SEARCHING || status == REG_UNREGISTERED) {
        status = modem.getRegistrationStatus();
        switch (status) {
        case REG_UNREGISTERED:
        case REG_SEARCHING:
            sq = modem.getSignalQuality();
            Serial.printf("[%lu] Signal Quality:%d", millis() / 1000, sq);
            delay(1000);
            break;
        case REG_DENIED:
            Serial.println("Network registration was rejected, please check if the APN is correct");
            return ;
        case REG_OK_HOME:
            Serial.println("Online registration successful");
            break;
        case REG_OK_ROAMING:
            Serial.println("Network registration successful, currently in roaming mode");
            break;
        default:
            Serial.printf("Registration Status:%d\n", status);
            delay(1000);
            break;
        }
    }
    Serial.println();

    Serial.printf("Registration Status:%d\n", status);
    delay(1000);

    String ueInfo;
    if (modem.getSystemInformation(ueInfo)) {
        Serial.print("Inquiring UE system information:");
        Serial.println(ueInfo);
    }

    if (!modem.enableNetwork()) {
        Serial.println("Enable network failed!");
    }

    delay(5000);

    String ipAddress = modem.getLocalIP();
    Serial.print("Network IP:"); Serial.println(ipAddress);

    // Initialize MQTT, use SSL
    modem.mqtt_begin(true);

    // Set Amazon Certificate
    modem.mqtt_set_certificate(AmazonRootCA, AWSClientCertificate, AWSClientPrivateKey);

    // Connecting to AWS IOT Core
    if (!mqtt_connect()) {
        return ;
    }

    while (1) {
        // Check the connection every ten seconds
        if (millis() > check_connect_millis) {
            check_connect_millis = millis() + 10000UL;
            if (!modem.mqtt_connected()) {
                mqtt_connect();
            } else {
                // If connected, send information once every ten seconds
                String payload = "RunTime:" + String(millis() / 1000);
                modem.mqtt_publish(0, publish_topic, payload.c_str());
            }
        }
        // MQTT handling
        modem.mqtt_handle();
        delay(5);
    }
}

void loop()
{
    // Debug AT
    if (SerialAT.available()) {
        Serial.write(SerialAT.read());
    }
    if (Serial.available()) {
        SerialAT.write(Serial.read());
    }
    delay(1);
}

Which doesn't work. It gives the following output:

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2024.04.27 20:33:04 =~=~=~=~=~=~=~=~=~=~=~=
ets Jul 29 2019 12:21:46

rst:0x1 (POWERON_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
Start Sketch
Start modem...
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT
.
AT
AT
AT
AT

+CPIN: READY
.
AT

*ATREADY: 1
AT
OK

AT+CPIN?
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT
OK
AT+CPIN?
+CPIN: READY

OK
SIM card online
AT+CNMP=2

SMS DONE
AT+CNMP=2
OK
AT+CNMP?
AT+CNMP?
+CNMP: 2

OK
Current network mode : AUTO
AT+NETCLOSE
AT+NETCLOSE
+NETCLOSE: 2

ERROR
AT+CGDCONT=1,"IP","hologram","0.0.0.0",0,0
AT+CGDCONT=1,"IP","hologram","0.0.0.0",0,0
OK
AT+CIPMODE=0
AT+CIPMODE=0
OK
AT+CIPSENDMODE=0
AT+CIPSENDMODE=0
OK
AT+CIPCCFG=10,0,0,0,1,0,75000
AT+CIPCCFG=10,0,0,0,1,0,75000
OK
AT+CIPTIMEOUT=75000,15000,15000
AT+CIPTIMEOUT=75000,15000,15000
OK
AT+CGACT=1,1
AT+CGACT=1,1
+CME ERROR: unknown error

+CGEV: EPS PDN ACT 1

PB DONE
Wait for the modem to register with the network.AT+CGREG?
AT+CGREG?
+CGREG: 0,5

OK
Network registration successful, currently in roaming mode

Registration Status:5
AT+CPSI?
AT+CPSI?
+CPSI: LTE,Online,310-260,0xA1F7,8836107,444,EUTRAN-BAND2,875,4,0,14,37,40,1

OK
Inquiring UE system information:LTE,Online,310-260,0xA1F7,8836107,444,EUTRAN-BAND2,875,4,0,14,37,40,1
AT+NETOPEN
AT+NETOPEN
OK

+NETOPEN: 0AT+IPADDR

AT+IPADDR
+IPADDR: xxx.xxx.xxx.xxx

OK
Network IP: xxx.xxx.xxx.xxx 
AT+CMQTTSTART
AT+CMQTTSTART
OK

+CMQTTSTART: 0
Connecting to a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.comAT+CCERTDOWN="ca_cert.pem",1199
AT+CCERTDOWN="ca_cert.pem",1199
>
-----BEGIN ROOT CERTIFICATE-----
<private>
-----END ROOT CERTIFICATE-----

OK
AT+CSSLCFG="cacert",0,"ca_cert.pem"
AT+CSSLCFG="cacert",0,"ca_cert.pem"
OK
AT+CCERTDOWN="cert.pem",1221
AT+CCERTDOWN="cert.pem",1221
>
-----BEGIN CERTIFICATE-----
<private>
-----END CERTIFICATE-----

OK
AT+CSSLCFG="clientcert",0,"cert.pem"
AT+CSSLCFG="clientcert",0,"cert.pem"
OK
AT+CCERTDOWN="key_cert.pem",1676
AT+CCERTDOWN="key_cert.pem",1676
>
-----BEGIN RSA PRIVATE KEY-----
<private>
-----END RSA PRIVATE KEY-----

OK
AT+CSSLCFG="clientkey",0,"key_cert.pem"
AT+CSSLCFG="clientkey",0,"key_cert.pem"
OK
AT+CSSLCFG="sslversion",0,4
AT+CSSLCFG="sslversion",0,4
OK
AT+CMQTTSSLCFG=0,0
AT+CMQTTSSLCFG=0,0
OK
AT+CSSLCFG="authmode",0,2
AT+CSSLCFG="authmode",0,2
OK
AT+CMQTTREL=0
AT+CMQTTREL=0
+CMQTTREL: 0,20

ERROR
AT+CMQTTACCQ=0,"iot24_zami_GPSTracker ",1
AT+CMQTTACCQ=0,"iot24_zami_GPSTracker ",1
OK
AT+CMQTTCONNECT=0,"tcp://a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.com:8883",60,1
AT+CMQTTCONNECT=0,"tcp://a3jw4mm4a8k9f8-ats.iot.us-east-2.amazonaws.com:8883",60,1
+CMQTTCONNECT: 0,34

ERROR
Failed!

And this is where I am at. I would love to hear anything that might make this example work, and I will be very active on this topic, so please do not hesitate to respond with any questions.

lewisxhe commented 1 month ago

It seems you didn't populate the certificate correctly, did you check the video I recorded? Everything is fine in my test here

github-actions[bot] commented 1 week ago

This issue is stale because it has been open for 30 days with no activity.