123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180 |
- /*
- Assuming the protocol we are adding is for the (imaginary) manufacturer: Shuzu
-
- Our fantasy protocol is a standard protocol, so we can use this standard
- template without too much work. Some protocols are quite unique and will require
- considerably more work in this file! It is way beyond the scope of this text to
- explain how to reverse engineer "unusual" IR protocols. But, unless you own an
- oscilloscope, the starting point is probably to use the rawDump.ino sketch and
- try to spot the pattern!
-
- Before you start, make sure the IR library is working OK:
- # Open up the Arduino IDE
- # Load up the rawDump.ino example sketch
- # Run it
-
- Now we can start to add our new protocol...
-
- 1. Copy this file to : ir_Shuzu.cpp
-
- 2. Replace all occurrences of "Shuzu" with the name of your protocol.
-
- 3. Tweak the #defines to suit your protocol.
-
- 4. If you're lucky, tweaking the #defines will make the default send() function
- work.
-
- 5. Again, if you're lucky, tweaking the #defines will have made the default
- decode() function work.
-
- You have written the code to support your new protocol!
-
- Now you must do a few things to add it to the IRremote system:
-
- 1. Open IRremote.h and make the following changes:
- REMEMEBER to change occurences of "SHUZU" with the name of your protocol
-
- A. At the top, in the section "Supported Protocols", add:
- #define DECODE_SHUZU 1
- #define SEND_SHUZU 1
-
- B. In the section "enumerated list of all supported formats", add:
- SHUZU,
- to the end of the list (notice there is a comma after the protocol name)
-
- C. Further down in "Main class for receiving IR", add:
- //......................................................................
- #if DECODE_SHUZU
- bool decodeShuzu (decode_results *results) ;
- #endif
-
- D. Further down in "Main class for sending IR", add:
- //......................................................................
- #if SEND_SHUZU
- void sendShuzu (unsigned long data, int nbits) ;
- #endif
-
- E. Save your changes and close the file
-
- 2. Now open irRecv.cpp and make the following change:
-
- A. In the function IRrecv::decode(), add:
- #ifdef DECODE_NEC
- DBG_PRINTLN("Attempting Shuzu decode");
- if (decodeShuzu(results)) return true ;
- #endif
-
- B. Save your changes and close the file
-
- You will probably want to add your new protocol to the example sketch
-
- 3. Open MyDocuments\Arduino\libraries\IRremote\examples\IRrecvDumpV2.ino
-
- A. In the encoding() function, add:
- case SHUZU: Serial.print("SHUZU"); break ;
-
- Now open the Arduino IDE, load up the rawDump.ino sketch, and run it.
- Hopefully it will compile and upload.
- If it doesn't, you've done something wrong. Check your work.
- If you can't get it to work - seek help from somewhere.
-
- If you get this far, I will assume you have successfully added your new protocol
- There is one last thing to do.
-
- 1. Delete this giant instructional comment.
-
- 2. Send a copy of your work to us so we can include it in the library and
- others may benefit from your hard work and maybe even write a song about how
- great you are for helping them! :)
-
- Regards,
- BlueChip
- */
-
- #include "IRremote.h"
- #include "IRremoteInt.h"
-
- //==============================================================================
- //
- //
- // S H U Z U
- //
- //
- //==============================================================================
-
- #define BITS 32 // The number of bits in the command
-
- #define HDR_MARK 1000 // The length of the Header:Mark
- #define HDR_SPACE 2000 // The lenght of the Header:Space
-
- #define BIT_MARK 3000 // The length of a Bit:Mark
- #define ONE_SPACE 4000 // The length of a Bit:Space for 1's
- #define ZERO_SPACE 5000 // The length of a Bit:Space for 0's
-
- #define OTHER 1234 // Other things you may need to define
-
- //+=============================================================================
- //
- #if SEND_SHUZU
- void IRsend::sendShuzu (unsigned long data, int nbits)
- {
- // Set IR carrier frequency
- enableIROut(38);
-
- // Header
- mark (HDR_MARK);
- space(HDR_SPACE);
-
- // Data
- for (unsigned long mask = 1UL << (nbits - 1); mask; mask >>= 1) {
- if (data & mask) {
- mark (BIT_MARK);
- space(ONE_SPACE);
- } else {
- mark (BIT_MARK);
- space(ZERO_SPACE);
- }
- }
-
- // Footer
- mark(BIT_MARK);
- space(0); // Always end with the LED off
- }
- #endif
-
- //+=============================================================================
- //
- #if DECODE_SHUZU
- bool IRrecv::decodeShuzu (decode_results *results)
- {
- unsigned long data = 0; // Somewhere to build our code
- int offset = 1; // Skip the Gap reading
-
- // Check we have the right amount of data
- if (irparams.rawlen != 1 + 2 + (2 * BITS) + 1) return false ;
-
- // Check initial Mark+Space match
- if (!MATCH_MARK (results->rawbuf[offset++], HDR_MARK )) return false ;
- if (!MATCH_SPACE(results->rawbuf[offset++], HDR_SPACE)) return false ;
-
- // Read the bits in
- for (int i = 0; i < SHUZU_BITS; i++) {
- // Each bit looks like: MARK + SPACE_1 -> 1
- // or : MARK + SPACE_0 -> 0
- if (!MATCH_MARK(results->rawbuf[offset++], BIT_MARK)) return false ;
-
- // IR data is big-endian, so we shuffle it in from the right:
- if (MATCH_SPACE(results->rawbuf[offset], ONE_SPACE)) data = (data << 1) | 1 ;
- else if (MATCH_SPACE(results->rawbuf[offset], ZERO_SPACE)) data = (data << 1) | 0 ;
- else return false ;
- offset++;
- }
-
- // Success
- results->bits = BITS;
- results->value = data;
- results->decode_type = SHUZU;
- return true;
- }
- #endif
|