necessary components for application ???

[small_chick]

I have an idea to make an application with DS1307.It can be described as followed:
-I want to set up time for some important works I have to do, I intend to use DS1307 to create real time clock. When time that has been set up for a particular event comes, a bell will be trigger and I can hear the ringing sound , but I haven't got the trend to test if the time that has been set up for that event comes !
I hope you can give me some clues ! thanks a lot!

[Gabriel]

so basically you want to set up an alarm? and trigger events if (Alarm==True)


DS1307 does not have alarms.. however.. you can poll the time and when the time registers match... you can execute your "event" code.

G.
_________________
CCS PCM 5.078 & CCS PCH 5.093

[small_chick]

I think I have to trigger 3 datas: seconds,minutes, hours ( assumed that I set up schedule everyday similar). The triggerring order is seconds=>minutes=>hours ???
I intend to use I2C interface here, I'd like to ask one more question about instruction i2c_read(ack), the ack value is the value I will give back to the slave ? if so,could you give me an example when we don't assign ack value ( miss this value) , how will the slave react ?

[asmboy]

have you put much thought in to:
1 - the hardware you will need ?
ie your schematic of the whole circuit /system?
2- how you SET real time in the RTC chip?
3-how you set alarms , and present the results of your timer program?

a complete pic application is much more than the source code alone

[bkamen]

[Gabriel]

I use a 16F886 with a crystal on TMR1 as an RTC.
I check the Alarm values against the time registers on each interrupt.
I've set my code to trigger every 16 seconds... so I _cant_ trigger alarms based on seconds, but triggering alarms on seconds is not relevant in my project.... I'm measuring a VERY slow process, so same minute resolution is good.

Its really simple, single chip solution with sleep and alarm wake up...
no battery backed RTC though, so I get screwed if I get a power fail/reset.
_________________
CCS PCM 5.078 & CCS PCH 5.093

[small_chick]

It's true that I have to do an assignment, and its content as follow: combining all PIC programming lessons I've learnt ( LCD,ADC,UART,I2C,PWM) with GUI (graphic user interface that is programmed by using VS Studio 2010 ) to create a game that allows player to interact with it. However, I have to use an digital sensor. I haven't got much knowledge about sensors and have never created a game, so it's really difficult for me.
I hope you can recommend me some ideas about a game and a "digital" sensor I can use. Thanks a lot!

[Gabriel]

Right....

(drops ninja smoke bomb and .....
_________________
CCS PCM 5.078 & CCS PCH 5.093