at-command

问题 I am facing an issue related to AT+CUSD command. On some Gsm modems, this command expects three parameters while on the others, it expects just two parameters. Moreover, different values of those parameters. I want to know that, how can I configure the Gsm modem so that this command can be executed in a uniform way on most Gsm modems. Forexample: On Nokia c6-01 , the cusd command is executed successfully only in this way: AT+CUSD=1,"*123#",15 Whereas on Sony Ericsson K750: AT+CUSD=1,"*123#"

问题 I am trying to do the following I am getting a call to another person using my java application (Already done & works fine). Then I am playing a recording, for example "Please press 1 one to continue in english" (Already done & works fine). Now I want to detect that person press one, As per my researches in google search I got that this can do using DTMF.If the person press 1 I want to do the actions according to my condition. My question is how to detect that number using DTMF in java (J2SE)

问题 I'm stumped with sending data to a remote server , I'm able to send a post request but not sure how to add data which is then received by the server. I've went through the datasheet http://www.jarzebski.pl/datasheets/SIM900_https-121018-1.00.pdf tried # usual at+sapbr=1,1 set up +HTTPINIT +HTTPPARA = “CID”,1 +HTTPPARA="URL","IP-ADDRESS:PORT" +httpdata=100,10000 # Where do I add the post data ? +httpaction=1 which sends the http post request. But how do I add data - I've tried adding it to the

问题 I have looked all over the net for a good library to use in sending and receiving sms's using python but all in vain! Are there GSM libraries for python out there? 回答1: Have you looked at py-sms? 回答2: Python-binding for Gammu perhaps? BTW. It's GUI version (Wammu) is written in wxPython. 回答3: I have recently written some code for interacting with Huawei 3G USB modems in python. My initial prototype used pyserial directly, and then my production code used Twisted's Serial support so I can

问题 I cannot get my HC-05 bluetooth modules to output RSSI values. I issue it the following commands in series: AT+INIT -> *OK* AT+INQM=1,9,48 -> *OK* AT+INQ -> *No response, it starts flashing rapidly, indicating AT mode is no longer active* After the INQ command, the module it starts flashing rapidly. I think this means it has exited AT command mode, and I get not response on the INQ request. I have to issue the INIT command before the INQM? as otherwise it gives back an error(16). I have even

问题 I need send AT commands to a usb GSM modem whith C#. The problem is that i havent no GSM modem or GSM enabled device yet to develop then i was looking for a emulator. The only simulated GSM modem i found was that come with the Android SDK. My problem now is sent AT commands to Android simulated GSM modem througt COM port like i need to do in my real application. There is some way to reach COM (virtual Usb-Com) port of Android simulated GSM modem and sent AT commands to connect to internet ?

问题 my end goal is have a microcontroller with bluetooth make calls through any bluetooth enabled phone via bluetooth. I currently have an android phone and it would be great if i could place calls onto that, but i am willing to purchase any phone. This is for my senior design and i have a lack of knowledge when it comes to the guts of cell phones. I currently can talk from my microcontroller to an Android app called BlueTerm, which is just a terminal for bluetooth, so i know the micro side is

问题 So I have succesfully attached a Esp8266 to an Arduino Due. I can communicate with it via Serial Monitor if I choose the Baudrate to be 74880. Then all the commands come to it correctly and can be read back correctly. However, when I send the command AT+RST which restarts the Esp8266 I can no longer communicate with it and need to reopen the serial connection with a Baudrate of 115200. I have to repeat this every time I load the code new to the Arduino or when I power off the Esp8266. Any

问题 I working on a website which have function for sending SMS messages. What i know is the GSM modem use AT COMMAND to send/receive the message. I already have the modem but i can't find a way to sending the AT COMMAND from php script to the modem. Can someone give me a clear direction. Many thanks. 来源： https://stackoverflow.com/questions/20990533/send-and-read-sms-through-a-gsm-modem-using-at-commands-from-websites

问题 I want to make a c# program that connects to my mobile phone by usb cable to make just a call. I found how to connect by SerialPort and how to make call by AT Commands, but when I run my program and click to make the call, nothing happens. This is my code, please Help me: SerialPort SP = new SerialPort("COM3"); SP.BaudRate = 9600; SP.Parity = Parity.None; SP.DataBits = 8; SP.StopBits = StopBits.One; SP.RtsEnable = true; SP.DtrEnable = true; SP.Encoding = System.Text.Encoding.Unicode; SP