IR
Overview¶
The most easiest way to get a user input is using push button switches.
However, Many pins on mbed have a peripheral and we can't use their pin if we use the peripherals.
It's OK to add a few switches. But over 10 switches ... It's not good way to get a user inputs. It's not beautiful way for it.
So I created IR remote transmitter and receiver class library.
You can get a user inputs with only a pin if you use this class library.
Now we can control many machines that have a IR port.
The simple interfaces¶
To setup the receiver.
#include "ReceiverIR.h" ReceiverIR ir_rx(p15);
To use the receiver.
RemoteIR::Format format;
uint8_t buf[32];
int bitcount;
if (ir_rx.getState() == ReceiverIR::Received) {
bitcount = ir_rx.getData(&format, buf, sizeof(buf) * 8);
}
To setup the transmitter.
#include "TransmitterIR.h" TransmitterIR ir_tx(p21);
To use the transmitter.
RemoteIR::Format format = RemoteIR::SONY;
uint8_t buf[] = { 0x80, 0x00 };
int bitcount = 12;
if (ir_tx.getState() == TransmitterIR::Idle) {
bitcount = ir_tx.setData(format, buf, bitcount);
}
That's it all.
It's easy to setup your IR remote application.
API¶
Import library
Public Types |
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| enum | State |
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State. More... |
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Public Member Functions |
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| ReceiverIR (PinName rxpin) | |
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Constructor.
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| ~ReceiverIR () | |
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Destructor.
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| State | getState () |
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Get state.
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| int | getData (RemoteIR::Format *format, uint8_t *buf, int bitlength) |
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Get data.
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Import library
Public Member Functions |
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| TransmitterIR (PinName txpin) | |
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Constructor.
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| ~TransmitterIR () | |
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Destructor.
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| State | getState (void) |
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Get state.
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| int | setData (RemoteIR::Format format, uint8_t *buf, int bitlength) |
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Set data.
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Library¶
Example application¶
Import programRemoteIR_TestProgram
A test program for RemoteIR library.
Last commit 13 Oct 2010 by 
Shinichiro Nakamura
The receiver¶
The transmitter¶
