but this is transmitter, i am asking about receiver
tsop 1738 is actually made for receiving the ir beam of 38khz but i am not having the schematic to do so, and the circuit given in its datasheet asks to connect directly to microcontroller, but my use is after detection their should be any led which shows the beam is received and after led the signal is sent to the microcontroller, if any one have any schematic with tsop pls share it here
ok so if i connect the circuit that you have given to me then when it receive the ir beam it makes the pin33 high? means set it to 0?
as it is fluctuating output, the coding for uC for on/off a port like switch will be difficult, isnt it ?,Yes u can say this but not exactly...
Here is the Waveform...
View attachment 67323
Hope this Helps u
as it is fluctuating output, the coding for uC for on/off a port like switch will be difficult, isnt it ?,
whenever the output fluctuates, then the uC output port also fluctuates, isnt it ?
means, attaining a stable state is difficult, isnt it ?
There's no LED shown in the circuit by arunsharma0731, so you should clarify in a first place how you connected it.but the problem is the led glows all the time and when the ir beam is present it blinks but doesnt switches to off state
i didnt got what are you saying, ok i am attaching the circuit of transmitter and receiver both, this transmitter is working but in receiver part i had made some changes can you solve what problem it is havingSecondly, you have the problem that a RC IR receiver is very sensitive but isn't prepared for continuous 38 kHz modulation, so you would need to apply a second (pulse packet) modulation to use it e.g. for a light barrier.
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