Search found 31 matches

Thanks!

Hi, i am from Ecuador, South America. I always had been interested in embedded systems. I make a few interesting proyects in the university, but always as prototypes, you know, the protoboard with a l ...

SOLVED!!!

Thanks Ttelmah, i didn't know that bauds and Hertz's are the same. I decided to use the setup_spi function because i read that #use spi has bugs, but i understood your idea about changing ...

Hi, good morning

PCM Programmer and Ttelmah, thanks for your responses. I think i haven't been clear, sorry, i am not testing in real hardware, it is just a simulation in Proteus. That is why i am ...

Hi, please i need some help. I am trying just to send the CMD0 command to an mmcard but always the response is 0Xff. I know its a software error because i am wiring exactly as this example from Proteu ...

OK.

Fundamental problem is that INT_RDA, says _one_ character is waiting. Just one.
gets, waits for a 'string' (actually a line terminated by a new line, which it then turns into a 'string'). So s ...

SOLVED!!!

Hi all!!!... finally i have solved the problem:

I must use ATE0 command!

I had read about ATE command, and in some forums they had this problem when they sent a sms from the sim90 ...

hi...ckielstra....sure...i know that i have 2 kinds of serial pins on the board... but you said that if i remove the 3 jumpers there is my ttl connections...but in the last pdf i posted clearly say th ...

ezflyr...thanks

i will find some time to continue doing tests with get string, as i said... i am late with my proyect, meanwhile... i will continue using getc

hi...look at this

https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-012-106/SIM900_A_+Module+Series+Debug+_unfinished_.pdf

this is the board i am using but if you read, they say that hardw ...

Thanks for the idea but i tried that configuration and i used getc, and it works, then i programmed the PIC to use get string and didn't work, it is the same error.

I send the sms, the program goes ...

ezflyr... i am not trying to get "something" to work, i have been searching for documentation of the board and it doesn't exist.

It also has a MAX232 interface to translate the 3.6V sign ...

PCM programmer and ezflyr...thanks for your help , i have been working in this all these days and all that ezflyr said about my confusion is true... also, you talk about level converters, the are ver ...

Sorry, i have been busy in my job, here is the website and the pictures there are better than mine:
http://www.sainsmart.com/sim900-gprs-gsm-board-quad-band-module-kit-for-arduino-high-quality-new.ht ...

As I mentioned, you can avoid all of this by using an 'LF' version of your PIC, and running the PIC and the SIM900 at the same supply voltage, such as 3.8V or so.

Hi, i also found my PIC16F887, a ...