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Hi,
I did a modbus communication with a embedded device and a PC. Communication cable is USB. But it act as a serial port. my device has FTDI chip for communication. Now I need to communicate this device with arduino uno board. I have connected it to arduino uno via USB host shield2...
LED Status are same.
Still I didn't get RDY command. But it works. to 115200 baud rate my module start responds to the AT Commands. then I changed the baud rate to 9600.
Sim300 soldering is very difficult. I've contacted the seller last week. But he didn't have an idea about configuration of...
Input Voltage : 8.0V
Input Current : 700mA
Jumper Settings
P1 - 2-4
P3 - 1-3 AND 6-8
Insert SIM Card
Then power up the module using Power on button.
System LED (Red) : ON
Net LED (Green) : Blinks few seconds and then OFF
It means SIM card is registered to Network.
Then your Module is...
It is working. Thank you very much for your kind support
---------- Post added at 11:15 ---------- Previous post was at 11:14 ----------
Baud Rate is 115200
I think my module is not working. Didn't get a RDY command. It displays only unidentified characters. tried with other baud rates up to 19200. but didn't get a reply. Thank you masterleous, and SthAusGuy for spend their valuable time.
Serial Cable and COM port1 is working fine. I used Br@y++ terminal. it gives <0> s. after entering the "AT" it gives some syntax. but didn't get a rdy command
---------- Post added at 15:20 ---------- Previous post was at 15:19 ----------
<0> display rate is equal to LED blinking frequency
Dear masterleous,
Thank you for quick reply. jumpers are same as you told. I have connected 1-3 and 6-8 together.
as your first instruction i did the following procedure.
first i checked the max232 connections. it was right. then check the VBAT voltages. it is near to 4V.
yesterday system...
**broken link removed**
Thank you for replying. this is the link of the product. it has sim300 manual and schematic. still didn't access this module using PC
Hi,
I bought a Arduino GPRS+GSM SIM300 Module+Development Board Ver2 module. but I could not interface it with my PC. If i want to communicate with the module while directly connected to my PC via RS232, how do i bridge the P3 pins? I've been trying AT commands and i get no reply from the...
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