How can I connect a SIM5360E module to my PC?

[detavot]

Hello everyone. I have a module for SIM5360E but it is not mounted on any board. I want to establish a connection between my module and my PC so that I can practice AT commands (there is no other option). I thought of using an external USB-to-Serial converter like CP2102 but it does not work. I looked up the pins of this module, would it be fine to just design a USB-to-Serial converter on the module itself and use that? I have no idea.

Thank you for your time nad help.

 

[aliarifat794]

The CP2102 should work. Please recheck your connections.

--- Updated Jul 3, 2024 ---

You can also try the FTDI module instead.

 

[detavot]

The CP2102 should work. Please recheck your connections.

--- Updated Jul 3, 2024 ---

You can also try the FTDI module instead.

I have attached the Tx, Rx, ground and the 5V pin of the module to the CP2102 (ofc with Tx to Rx and Rx to Tx). This is how it always ends up:

 

[KlausST]

I thought of using an external USB-to-Serial converter like CP2102 but it does not work.

"It does not work" gives us not the tinyest information.

***
It seems you want to use UART interface:
then:
* voltage levels need to meet
* timing / baud rate needs to meet
* protocol / sent data needs to meet.

That´s it.

Voltage and timing is given in the datasheets. Every designer needs to read them. Nothing special.
Protocol is what data you send/receive with your PC.

Klaus

 

[detavot]

"It does not work" gives us not the tinyest information.

***
It seems you want to use UART interface:
then:
* voltage levels need to meet
* timing / baud rate needs to meet
* protocol / sent data needs to meet.

That´s it.

Voltage and timing is given in the datasheets. Every designer needs to read them. Nothing special.
Protocol is what data you send/receive with your PC.

Klaus

Yes, you are correct. Voltage needs are approx. 3.4-4.4V, baud rate according to the datasheet is 115200 bps but I have seen in forums it can work between 9600-115200 so I have been trying all of them out, and the protocol/sent data is indeed met. I think the problem may be with the voltage so I am going to try to do some precise work with a voltage supplier today.

 

[KlausST]

Hi,

this is not what I meant. I did not mean to "try" .. I did mean to "know".
you gave one voltage range ... (and I don`t think this given range is correct)
but you need to match 8 ranges:

Modem <--> PC:
------------------
V_OL --> V_IL
V_OH --> V_OH
V_IL <-- V_OL
V_IH <-- V_OH

baud_rate = baud_rate

protocol <--> protocol

Klaus

 

[D.A.(Tony)Stewart]

Which module do you have?

• TXD/RXD are 3.3v TTL level which can be directly connected with 3.3v MCU

or

Autobauding is default.

1: Make sure your SIM card is unlocked.

2: The product is provided as is without an insulating enclosure. Please observe ESD precautions specially in dry (low humidity) weather.

3: The factory default setting for the GPRS Shield UART is autobaoding.

It supports baud rate from 1200 bps to 115200bps. (Can be changed using AT commands).

SIM5360E 3G Shield - Elecrow Wiki

www.elecrow.com

Is your data inverted?

Vin connected to external 5~9VDC power supply
or 4.3V> Vbat >3.4

https://www.elecrow.com/download/SIMCOM_SIM5360_ATC_EN_V0.16%20.pdf

standardized RS–232 interface is used for the communication, and default values for the interface settings as following:
115200bps, 8 bit data, no parity, 1 bit stop, no data stream control

TXB0108 data sheet, product information and support | TI.com

TI’s TXB0108 is a 8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect. Find parameters, ordering and quality information

www.ti.com

--- Updated Jul 4, 2024 ---

Yes, you are correct. Voltage needs are approx. 3.4-4.4V, baud rate according to the datasheet is 115200 bps but I have seen in forums it can work between 9600-115200 so I have been trying all of them out, and the protocol/sent data is indeed met. I think the problem may be with the voltage so I am going to try to do some precise work with a voltage supplier today.

The logic interface is 0<>1.8V but Vbat is 3.4><4.4

 

[detavot]

Which module do you have?
View attachment 192064

• TXD/RXD are 3.3v TTL level which can be directly connected with 3.3v MCU

or View attachment 192065

Autobauding is default.

1: Make sure your SIM card is unlocked.

2: The product is provided as is without an insulating enclosure. Please observe ESD precautions specially in dry (low humidity) weather.

3: The factory default setting for the GPRS Shield UART is autobaoding.

It supports baud rate from 1200 bps to 115200bps. (Can be changed using AT commands).

SIM5360E 3G Shield - Elecrow Wiki

www.elecrow.com

Is your data inverted?

Vin connected to external 5~9VDC power supply
or 4.3V> Vbat >3.4

https://www.elecrow.com/download/SIMCOM_SIM5360_ATC_EN_V0.16%20.pdf

standardized RS–232 interface is used for the communication, and default values for the interface settings as following:
115200bps, 8 bit data, no parity, 1 bit stop, no data stream control
View attachment 192059
View attachment 192060
View attachment 192061

TXB0108 data sheet, product information and support | TI.com

TI’s TXB0108 is a 8-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect. Find parameters, ordering and quality information

www.ti.com

--- Updated Jul 4, 2024 ---

The logic interface is 0<>1.8V but Vbat is 3.4><4.4

Unfortunately, I do not have a board. Just the module itself. I was given the task of figuring out how to connect the module to the PC when I didn't have any board to go off of. Thank you for your resources and kindness, I will keep your knowledge in mind

 

[detavot]

Hi,

this is not what I meant. I did not mean to "try" .. I did mean to "know".
you gave one voltage range ... (and I don`t think this given range is correct)
but you need to match 8 ranges:

Modem <--> PC:
------------------
V_OL --> V_IL
V_OH --> V_OH
V_IL <-- V_OL
V_IH <-- V_OH

baud_rate = baud_rate

protocol <--> protocol

Klaus

Ah! Thank you kindly, I did not realise about half of these parameters. The voltage range I gave was for VBAT, though for the logic interface I'd need 0-1.8V. Sorry for the inconvenience, I am very new to this.

--- Updated Jul 5, 2024 ---

Unfortunately, I do not have a board. Just the module itself. I was given the task of figuring out how to connect the module to the PC when I didn't have any board to go off of. Thank you for your resources and kindness, I will keep your knowledge in mind

and the module is sim5360e