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thanks everyone. i think i got the hang of it now. i've successfully been able to send sms now. but i dont get it why all the response i get is always the <cr><lf>OK<cr><lf> response.
dont know if i missed out any initialization for my fone. i initialize my fone by sending the following...
Re: regarding gsm modem
i've no experienceand not familiar using 89c51 as i use different type of microcontroller. but if you want to interface your microcontroller with your gsm modem, use the uart interface of the gsm modem and microcontroller. then from there you can control gsm modem from...
thanks! i finally got it to work more consistently in hyperterminal.
I then interfaced it with my microcontroller and was able to send sms thru my microcontroller but this time not 100% accurate. sometimes the characters get jumbled and sometimes it doesnt send at all. i used 9600 baud rate, 8...
i think so. im using nokia 6210. 19200 bits per second, 8 data bits, no parity, 1 stop bit...
i noticed that when im typing the at commands in the hyperterminal and made typing errors and try to delete them and overwrite them with the correct at command that is when the command generates an...
at command,cmgr:sm
hi! i connected my cellphone to my pc via hyperterminal. i just dont get why is it that when im sending the exact same AT command (at+cmgs="<my cellphone#>",125)...it works most of the time. but sometimes it does not. does anyone know why this is so? im using the exact AT...
Re: LM350 Help
ah okay got it! Thanks! If that's the case then a capacitor would do for the 3A burst, especially since the burst would only last for around 600us.
Thanks!
Re: GSM Module
Thanks! Can i just clarify, i only need to use the SMS function of the module, do i still need to interface the ringer output and others pins you mentioned? or will the RTS/RTX (and other UART pins) suffice?
schematic lm350
Hi,
Im designing a power supply for a gsm module. It requires a supply voltage of 3.3V and can provide up to 3A. The module on the average uses only 880mA but uses up to 3A under certain conditions (transmitting, etc). Im thinking of supplying the module with around 1A and then...
There is a website useful for C++ programmers. You can check out this site for reference. They also have tutorials and sample codes shared by fellow programmers.
https://www.codeproject.com/
Hope this helps.
hi! i recently got a gsm module from siemens. This is my first time to work on such a module. Can anyone recommend a book or site that can give me better direction on how to integrate the module with my microcontroller (im working with a zilog z8 encore)
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