Infrared remote library for Arduino: send and receive infrared signals with multiple protocols Port from Arduino-IRremote https://github.com/z3t0/Arduino-IRremote
Dependents: Lilnija_29012017 NucleoF042K6_IRReceiver
Diff: ir_Denon.cpp
- Revision:
- 0:70c8e56bac45
diff -r 000000000000 -r 70c8e56bac45 ir_Denon.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ir_Denon.cpp Sat Jan 23 06:16:48 2016 +0000 @@ -0,0 +1,94 @@ +#include "IRremote.h" +#include "IRremoteInt.h" + +// Reverse Engineered by looking at RAW dumps generated by IRremote + +// I have since discovered that Denon publish all their IR codes: +// https://www.google.co.uk/search?q=DENON+MASTER+IR+Hex+Command+Sheet +// -> http://assets.denon.com/documentmaster/us/denon%20master%20ir%20hex.xls + +// Having looked at the official Denon Pronto sheet and reverse engineered +// the timing values from it, it is obvious that Denon have a range of +// different timings and protocols ...the values here work for my AVR-3801 Amp! + +//============================================================================== +// DDDD EEEEE N N OOO N N +// D D E NN N O O NN N +// D D EEE N N N O O N N N +// D D E N NN O O N NN +// DDDD EEEEE N N OOO N N +//============================================================================== + +#define BITS 14 // The number of bits in the command + +#define HDR_MARK 300 // The length of the Header:Mark +#define HDR_SPACE 750 // The lenght of the Header:Space + +#define BIT_MARK 300 // The length of a Bit:Mark +#define ONE_SPACE 1800 // The length of a Bit:Space for 1's +#define ZERO_SPACE 750 // The length of a Bit:Space for 0's + +//+============================================================================= +// +#if SEND_DENON +void IRsend::sendDenon (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_DENON +bool IRrecv::decodeDenon (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 < 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 = DENON; + return true; +} +#endif