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My requirement is that i want to trigger flash for example if two studio flash are installed in one hall..they should not b trigger from only one transmitter remote .they should be only trigger from their respective remotes.for example say flash1 remote 1, flash2 remote 2, the flash1 should not...
i am making a wireless trigger to trigger studio flash. for this i am using 8051 controller rf module, encoder ht12e ,decoder ht12d.
transmitter side: i am using encoder with at89c2051 rf transmitter
receiver side: using decoder with 8051 rf receiver
now the requirement is the if at a place...
heya m still not got any progress..some how i conclude i need fast switching circuit to drive ir led..! can u help..! using fET...i am not getting hig range,,!
OBJECTIVE:
i want to design a automatic flush system. the system that detect a person and automatically flush the for 7sec after using a toilet by the person..!
TO detect a person i need to use IR SENSOR as per the requirement the system should able be to detect a person standing 2ft in front...
thnxs for the suggestion but i dnt wanna use extra ic.. i wanna do it from controller only...!
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#include <REG2051.H>
void delay1(void);
sbit mybit=P1^7;
int a;
void delay(unsigned int msec ) // Time delay function
{
int i ,j ;
for(i=0;i<msec;i++)
for(j=0; j<1912; j++);
}...
yes its generating the frequency vry fine..crystal i am using is 11.0592mhz..! but srsly my doubt is dis only dat i have trnsmite dis frequency for how much time..70cycles is equal to much mill sec..? then data sheet mentioned gap of 14 cycle..?
so exactly nw how much should b the burst length tell me excatly....in datasheet it mention 70cycles...but in c language i need in sec or milli sec..so plz tell me..!cant calculate cycles..!
thnxs fvm..
can u tell what else should i do in my code....kindly help me sir..!
#include <REG2051.H>
void delay1(void);
sbit mybit=P1^7;
void timer0_isr () interrupt 1
{
mybit = ~mybit;
}
void main ()
{
P1=0x00;
TMOD = 0X02;
TL0 = 0xf4;
TH0 = 0xf4;
IE =...
Hi guys
I am making automatic urinal flush system. I need to dect a person for dat.! I am using tsop1738 for detecting ir signal.! I m generating 38kHz frequency from microcontroller n transmiting it through ir led but I am not getting good range I need at 4ft but the only range m getting is...
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