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I am facing a strange situation with DTMF detection with SIM-900. I activate DTMF detection with AT+DDET=1 and everything works fine. The problem is with digit 4 and 5. I receive nothing when these digits are pressed from the calling phone. Has anyone experienced this?
I am using firmware -...
Dear friends,
Following is a part of my programme. this part is executed every 10 mili second.
I expect the portd to function as a counter and increment every 10ms. (TRISD is all output)
However i get the output only on the PORTD,1. This confirms the the TM in incremented as expected , but...
Hi WP-100,
This is a simple code that does work with 628 and does not work with 628A. (Some of the pins are not flahing with 628A) Please ignor RB3 because of PWM configuration.
list p=16f628A
#include "p16f628A.inc"
UDATA 0x40
TIMER res 1
__config 0X0078
CODE
STARTUP CODE 0X0...
Hi WP 100,
Thank you for the response. I think you are correct. Only i can not confirm as i can not programme 628 now. However i reduce my code and now i have a running programme (switching PORTA and PORTB on and off with low frequency)The zip file is attached. Can you please have a look?
Hi WP100,
I am sorry for the delay. I ried to extract the early part of the code (set up and main) but that created other problems. (full of errors)
I do not have knowledge to resolve them. However i can give more details of the problem. I was using PicKit-2 (clone from futurelec). As MPLAB...
I can not make some of my PIC16f628A port outputs. RA0,RA1?
I was using PIC16f628 and it was working propely.
With the same code i have this problem with PIC16f628A.
I have disabled the comparator on PORTB, but the problem is still there.
Can anyone help please?
sim300 gerber
Hi,
I purchased a SIM300 module without considering the connections. The tiny connector which i ordered with it is ment to be connected to a special PCB or something similar.
Can any one explain how i can obtain the serial port and power connections from this module? From...
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