I am interfacing gsm sim 900 with At89c52.I hav gone through all the AT commands.I have tried dem on Hyperterminal.I want to know how do we send a message from our mobile device to gsm modem and how to transmit it from modem to microcontroller.What commands to use!?? I have tried sending msg from pc to mobile..Pls help
This relates to Keil products how exactly?
You could send an SMS from a mobile phone to the modem I you knew the phone#. On the modem you'd need to register on the network, and use the AT commands related to the SMS handling to observe if a message has been received, and to read that message. You'd need some basic code to parse the response from the AT commands to extract the message, and calling number.
Nothing specific to 8051.
This should be possible using entirely standard AT Commands - so not even specific to SIM900.
Nothing to do with Keil!
"I have gone through all the AT commands"
And what was your conclusion from that exercise?
"I have tried dem ["them"?] on Hyperterminal"
And what was the result?
"I want to know how do we send a message from our mobile device"
Read the documentation for your "mobile device" - whatever it is.
"to gsm modem"
Think about it: as far as sending SMS is concerned, the destination is just a phone number - isn't it?
"how to transmit it from modem to microcontroller"
I thought you said you'd studied all the AT commands? And tried them on hyperterminal?
"What commands to use!??"
See above!
"I have tried sending msg from pc to mobile."
And what was the result? What was your conclusion from that exercise?
"Pls help"
You're really not giving much to go on!
It's not like there aren't already plenty of examples on the interweb...
www.catb.org/.../smart-questions.html
I'm shooting 8mm DV Widescreen (16x9) with a Panasonic NV-GS400. My plan is to capture all my tapes onto Mac as DV AVI Type 2 for archive and also convert Panasonic NV-GS400 DV to 16:9 MP4 aspect ratio for presenting on my projector and then playing on Apple TV. But I have a problem with correct aspect ratio when converting 8mm DV shootings to MP4. The converted files are automatically viewed as 4:3 Aspect Ratio but it should be 16:9.
After some initial tests, with the help of iMedia Converter for Mac, I successfully encode DV AVI to MP4 as 16:9 without loss in quality. The built-in editor tool provides some useful edit functions which enable you to enhance the video clips, including cropping, flipping, trimming, splitting, apply special effects, add subtitles and watermark. So I can easily convert DV movies to MP4 with vertical flipping or horizontal flipping. And one highlight I appreciate is the perfect audio and video synchronization technology the program use.
Want to edit DV movies in FCP, After Effect, Sony Vegas, etc? Want to encode DV AVI to DivX? Want to convert DV movies to DVD MPEG format? It's no problem! More than a DV to MP4 Encoder, the iMedia Converter for Mac can output more than 50 types of video formats, including MOV, MKV, WMV, FLV, etc.
Below is a simple tutorial to convert DV to 16:9 MP4 with cropping and flipping. The 4-steps DV to MP4 conversion is time-saving and easy-to-handle.
This conversion program can be easily found via Google with keywords "Aunsoft iMedia Converter for Mac".
1 Add 8mm DV shootings to Aunosft iMedia Converter for Mac
Click "Add Files" icon to add your DV files from desktop or other folders. Or directly drag the DV files directly to the program window.
2 Choose MP4 as output format
Click "Output Format", choose "HD video>"H.264 HD Video (*.mp4)" as output format.
You can also directly set your exact device from "Device" category as the output, such as iPod, iPad, iPhone, PSP, HTC, Android phones, etc.
3 Crop and Flip 8mm DV recordings
Click "edit selected task" icon in the main interface. Here, you can crop the unwanted part or black edge. Vertical flip or horizontal flip is available with one click.
Click "Crop" to set Aspect Ratio as 16:9 do you can encode DV to 16:9 MP4.
4 Start DV to MP4 conversion
Click "convert" button and the iMedia Converter for Mac will start to transcode NV-GS400 8mm DV to 16:9 MP4 with HD quality fatly. This program is very efficient, and the progress bar will show you the percentage and remaining time. www.aunsoft.com/.../ For windows user, you can turn to Blu-ray Video Converter Ultimate.
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