Arduino UNO + SIM808 Module v3.2 Connection

minakarm999 · February 6, 2020, 3:23pm

I used sim808 module and i faced a problem in connection with arduino .
I use this code

myDevicesIoT/Cayenne-MQTT-Arduino/blob/master/examples/Connections/GSM/GSM.ino

/*
This example shows how to connect to Cayenne using a GSM device and send/receive sample data.

The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager.

Steps:
1. Install the TinyGSM library (https://github.com/vshymanskyy/TinyGSM) from the Arduino Library Manager.
2. Set the Cayenne authentication info to match the authentication info from the Dashboard.
3. Uncomment the correct GSM modem type and set the GSM connection info, if needed.
4. Compile and upload the sketch.
5. A temporary widget will be automatically generated in the Cayenne Dashboard. To make the widget permanent click the plus sign on the widget.
*/

//#define CAYENNE_DEBUG       // Uncomment to show debug messages
#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space

// Uncomment your modem type:
#define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM808
// #define TINY_GSM_MODEM_SIM900

This file has been truncated. show original

but it’s giving me this error.

[0] Initializing modem
[10667] Cannot init
[10667] Waiting for network
[60813] Register failed

Any one can help me ??

shramik_salgaonkar · February 6, 2020, 3:38pm

Have you tried the basic tiny GSM library code and checked whether you are connect the device. and rule out the possibility of some issue with your sim.

minakarm999 · February 7, 2020, 10:33am

I solved the problem. but it giving me new error.

[0] Initializing modem
[103] Waiting for network
[142] connecting to GPRS
[1934] not Connected

shramik_salgaonkar · February 7, 2020, 12:57pm

are you powering the SIM from a different power supply.

minakarm999 · February 7, 2020, 1:10pm

yeah, I power the module with 12v 2A

shramik_salgaonkar · February 7, 2020, 1:33pm

can you verify if this code is working for your device TinyGSM/MqttClient.ino at master · vshymanskyy/TinyGSM · GitHub

minakarm999 · February 7, 2020, 2:00pm

My problem was solved by changing the sim card.
Thank you

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Arduino UNO + SIM808 Module v3.2 Connection

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