Connect COM.LTE to CoreS3?

[felmue]

Hello @aezero

You are correct, on M5CoreS3 GPIO1 and GPIO2 are used for external I2C.

I suggest you set COM.LTE to use pins 16 / 17 and then use GPIO18 / 17 in your code. AFAIK PC_RX and PC_TX are the second serial.

Thanks
Felix

[aezero]

@felmue
Hi Felix! Good to hear from you again!

Thanks for the clarification! The second serial connection is the blue connector, right?

[aezero]

Looking at the pinout diagrams with some refreshed eyes and I see it now... "PA" is short for "Port A" and "PC" is short for "Port C". And PA has a red background, like the red Port A connector, and PC is in the same light blue as Port C's connector.

[felmue]

Hello @aezero

thank you for pointing that out as I haven't noticed that myself - even the background color matches the connectors.

Thanks
Felix

[aezero]

And on further examination, there's the dark grey PB_IN and PB_OUT pins, at G8 and G9. The splash screen when you power it on shows G8 and G9 are on Port B (there's a typo, saying "Port.C" but it's in the position of the black Port B connector).

[aezero]

I just made another discovery. If you power it up with the factory demo software, go the home screen, and then tap on "CORES3" six times, it puts you into a factory test mode

[Cohen]

I have the M5CoreS3 and the Com.x LTE, not having any success communicating with the COM.X LTE. the dips are on the default 5/13.
what should they be set too? and is there any simple Example Test of LTE for me to test and follow??

I see this comment
"I suggest you set COM.LTE to use pins 16 / 17 and then use GPIO18 / 17 in your code. AFAIK PC_RX and PC_TX are the second serial."

not sure if just Dip 5 should change to 16 or 17?? help appreciated.

also in the Code is there a command to tell how to communicate with those different PINS??

first time use of the LTE.
thanks

[felmue]

Hello @Cohen

please find a simple test for the communication between M5CoreS3 and COM.LTE module.

In the COM.LTE module set the DIP switches as follows:

15 - off
 5 - off
16 - on
13 - off
 0 - off
17 - on

Note: my COM.LTE module takes about 15 seconds (after power on) until it is ready and responds with AT OK.

Thanks
Felix

[Cohen]

@felmue said in Connect COM.LTE to CoreS3?:

test

I give this a go. thanks

[Cohen]

Thanks that did it.
I got a res: AT OK.

thanks.

I am trying to use TinyGSM
has any one got it working with he Core3 COM.X LTE?

but with no luck. get the following:-
22:44:52.276 -> [6988] Trying baud rate 115200 ...
22:45:02.304 -> [16999] Trying baud rate 57600 ...
22:45:12.314 -> [27009] Trying baud rate 38400 ...
22:45:22.312 -> [37019] Trying baud rate 19200 ...
22:45:32.324 -> [47029] Trying baud rate 9600 ...
22:45:42.325 -> [57039] Trying baud rate 74400 ...
22:45:52.334 -> [67049] Trying baud rate 74880 ...
22:46:02.336 -> [77059] Trying baud rate 14400 ...
22:46:12.356 -> [87069] Trying baud rate 28800 ...
22:46:22.358 -> [97079] Initializing modem...
22:46:32.393 -> [107111] Failed to restart modem, delaying 10s and retrying
22:46:32.393 -> [107111] Initializing modem...
22:46:42.440 -> [117143] Failed to restart modem, delaying 10s and retrying
22:46:42.440 -> [117143] Initializing modem...
22:46:52.451 -> [127175] Failed to restart modem, delaying 10s and retrying
22:46:52.454 -> [127175] Initializing modem...

Thanks

[Cohen]

Got a bit further in the quest.

I added the following:-
void setup() {
// Set console baud rate
SerialMon.begin(115200);
delay(10);

SerialAT.begin(115200, SERIAL_8N1, 18, 17, false);
delay(3000);
modem.restart();

and got some responses

23:06:21.706 -> [14189] Wait...
23:06:27.695 -> [20189] Trying baud rate 115200 ...
23:06:30.064 -> [22535] Modem responded at rate 115200
23:06:30.064 -> [22535] Initializing modem...
23:06:35.068 -> [27555] ### TinyGSM Version: 0.11.7
23:06:35.068 -> [27555] ### TinyGSM Compiled Module: TinyGsmClientSIM7600
23:06:45.272 -> [37756] Failed to restart modem, delaying 10s and retrying
23:06:45.272 -> [37756] Initializing modem...
23:06:55.486 -> [47957] Failed to restart modem, delaying 10s and retrying
23:06:55.486 -> [47957] Initializing modem...
23:07:03.779 -> [56269] ### TinyGSM Version: 0.11.7
23:07:03.779 -> [56269] ### TinyGSM Compiled Module: TinyGsmClientSIM7600
23:07:03.843 -> [56316] ### Modem: SIMCOM SIM7600G-H
23:07:03.843 -> [56316] ### Modem: SIMCOM SIM7600G-H
23:07:03.877 -> [56369] ### Modem: SIMCOM SIM7600G-H
23:07:03.877 -> [56369] Modem Name: SIMCOM SIM7600G-H
23:07:03.910 -> [56397] Modem Info: Manufacturer: SIMCOM INCORPORATED Model: SIMCOM_SIM7600G-H Revision: SIM7600G_V2.0.2 IMEI: "redacted" +GCAP: +CGSM
23:07:03.910 -> [56397] Waiting for network...
23:07:03.975 -> [56440] Network connected
23:07:03.975 -> [56440] Connecting to vsh.pp.ua
23:07:04.008 -> [56482] ... failed
23:07:04.008 -> [56482] Requesting current network time
23:07:04.008 -> [56484] Couldn't get network time, retrying in 15s.
23:07:18.986 -> [71484] Requesting current network time
23:07:19.025 -> [71486] Year: 2024 Month: 1 Day: 26
23:07:19.025 -> [71486] Hour: 23 Minute: 7 Second: 3
23:07:19.025 -> [71486] Timezone: 11.00
23:07:19.025 -> [71487] Retrieving time again as a string
23:07:19.025 -> [71506] Current Network Time: 24/01/26,23:07:18+44
23:07:19.185 -> [71672] Battery charge state: 0
23:07:19.185 -> [71672] Battery charge 'percent': 0
23:07:19.185 -> [71672] Battery voltage: 3.80
23:07:19.219 -> [71691] Chip temperature: 37.00
23:07:19.219 -> [71691] End of tests.