ir_recive_demov2

platformio.ini

@@ -13,3 +13,4 @@ platform = espressif8266
 board = nodemcuv2
 framework = arduino
 lib_deps = crankyoldgit/IRremoteESP8266@^2.8.5
+monitor_speed = 115200

src/main.cpp

@@ -1,18 +1,186 @@
+/*
+ * IRremoteESP8266: IRrecvDumpV2 - dump details of IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input kRecvPin.
+ *
+ * Copyright 2009 Ken Shirriff, http://arcfn.com
+ * Copyright 2017-2019 David Conran
+ *
+ * Example circuit diagram:
+ *  https://github.com/crankyoldgit/IRremoteESP8266/wiki#ir-receiving
+ *
+ * Changes:
+ *   Version 1.2 October, 2020
+ *     - Enable easy setting of the decoding tolerance value.
+ *   Version 1.0 October, 2019
+ *     - Internationalisation (i18n) support.
+ *     - Stop displaying the legacy raw timing info.
+ *   Version 0.5 June, 2019
+ *     - Move A/C description to IRac.cpp.
+ *   Version 0.4 July, 2018
+ *     - Minor improvements and more A/C unit support.
+ *   Version 0.3 November, 2017
+ *     - Support for A/C decoding for some protocols.
+ *   Version 0.2 April, 2017
+ *     - Decode from a copy of the data so we can start capturing faster thus
+ *       reduce the likelihood of miscaptures.
+ * Based on Ken Shirriff's IrsendDemo Version 0.1 July, 2009,
+ */
+
 #include <Arduino.h>
+#include <assert.h>
+#include <IRrecv.h>
+#include <IRremoteESP8266.h>
+#include <IRac.h>
+#include <IRtext.h>
+#include <IRutils.h>
 
-// put function declarations here:
+// ==================== start of TUNEABLE PARAMETERS ====================
-int myFunction(int, int);
+// An IR detector/demodulator is connected to GPIO pin 14
+// e.g. D5 on a NodeMCU board.
+// Note: GPIO 16 won't work on the ESP8266 as it does not have interrupts.
+// Note: GPIO 14 won't work on the ESP32-C3 as it causes the board to reboot.
+#ifdef ARDUINO_ESP32C3_DEV
+const uint16_t kRecvPin = 10; // 14 on a ESP32-C3 causes a boot loop.
+#else                         // ARDUINO_ESP32C3_DEV
+const uint16_t kRecvPin = 14;
+#endif                        // ARDUINO_ESP32C3_DEV
 
-void setup() {
+// The Serial connection baud rate.
-  // put your setup code here, to run once:
+// i.e. Status message will be sent to the PC at this baud rate.
-  int result = myFunction(2, 3);
+// Try to avoid slow speeds like 9600, as you will miss messages and
+// cause other problems. 115200 (or faster) is recommended.
+// NOTE: Make sure you set your Serial Monitor to the same speed.
+const uint32_t kBaudRate = 115200;
+
+// As this program is a special purpose capture/decoder, let us use a larger
+// than normal buffer so we can handle Air Conditioner remote codes.
+const uint16_t kCaptureBufferSize = 1024;
+
+// kTimeout is the Nr. of milli-Seconds of no-more-data before we consider a
+// message ended.
+// This parameter is an interesting trade-off. The longer the timeout, the more
+// complex a message it can capture. e.g. Some device protocols will send
+// multiple message packets in quick succession, like Air Conditioner remotes.
+// Air Coniditioner protocols often have a considerable gap (20-40+ms) between
+// packets.
+// The downside of a large timeout value is a lot of less complex protocols
+// send multiple messages when the remote's button is held down. The gap between
+// them is often also around 20+ms. This can result in the raw data be 2-3+
+// times larger than needed as it has captured 2-3+ messages in a single
+// capture. Setting a low timeout value can resolve this.
+// So, choosing the best kTimeout value for your use particular case is
+// quite nuanced. Good luck and happy hunting.
+// NOTE: Don't exceed kMaxTimeoutMs. Typically 130ms.
+#if DECODE_AC
+// Some A/C units have gaps in their protocols of ~40ms. e.g. Kelvinator
+// A value this large may swallow repeats of some protocols
+const uint8_t kTimeout = 50;
+#else  // DECODE_AC
+// Suits most messages, while not swallowing many repeats.
+const uint8_t kTimeout = 15;
+#endif // DECODE_AC
+// Alternatives:
+// const uint8_t kTimeout = 90;
+// Suits messages with big gaps like XMP-1 & some aircon units, but can
+// accidentally swallow repeated messages in the rawData[] output.
+//
+// const uint8_t kTimeout = kMaxTimeoutMs;
+// This will set it to our currently allowed maximum.
+// Values this high are problematic because it is roughly the typical boundary
+// where most messages repeat.
+// e.g. It will stop decoding a message and start sending it to serial at
+//      precisely the time when the next message is likely to be transmitted,
+//      and may miss it.
+
+// Set the smallest sized "UNKNOWN" message packets we actually care about.
+// This value helps reduce the false-positive detection rate of IR background
+// noise as real messages. The chances of background IR noise getting detected
+// as a message increases with the length of the kTimeout value. (See above)
+// The downside of setting this message too large is you can miss some valid
+// short messages for protocols that this library doesn't yet decode.
+//
+// Set higher if you get lots of random short UNKNOWN messages when nothing
+// should be sending a message.
+// Set lower if you are sure your setup is working, but it doesn't see messages
+// from your device. (e.g. Other IR remotes work.)
+// NOTE: Set this value very high to effectively turn off UNKNOWN detection.
+const uint16_t kMinUnknownSize = 12;
+
+// How much percentage lee way do we give to incoming signals in order to match
+// it?
+// e.g. +/- 25% (default) to an expected value of 500 would mean matching a
+//      value between 375 & 625 inclusive.
+// Note: Default is 25(%). Going to a value >= 50(%) will cause some protocols
+//       to no longer match correctly. In normal situations you probably do not
+//       need to adjust this value. Typically that's when the library detects
+//       your remote's message some of the time, but not all of the time.
+const uint8_t kTolerancePercentage = kTolerance; // kTolerance is normally 25%
+
+// Legacy (No longer supported!)
+//
+// Change to `true` if you miss/need the old "Raw Timing[]" display.
+#define LEGACY_TIMING_INFO false
+// ==================== end of TUNEABLE PARAMETERS ====================
+
+// Use turn on the save buffer feature for more complete capture coverage.
+IRrecv irrecv(kRecvPin, kCaptureBufferSize, kTimeout, true);
+decode_results results; // Somewhere to store the results
+
+// This section of code runs only once at start-up.
+void setup()
+{
+#if defined(ESP8266)
+  Serial.begin(kBaudRate, SERIAL_8N1, SERIAL_TX_ONLY);
+#else             // ESP8266
+  Serial.begin(kBaudRate, SERIAL_8N1);
+#endif            // ESP8266
+  while (!Serial) // Wait for the serial connection to be establised.
+    delay(50);
+  // Perform a low level sanity checks that the compiler performs bit field
+  // packing as we expect and Endianness is as we expect.
+  assert(irutils::lowLevelSanityCheck() == 0);
+
+  Serial.printf("\n" D_STR_IRRECVDUMP_STARTUP "\n", kRecvPin);
+#if DECODE_HASH
+  // Ignore messages with less than minimum on or off pulses.
+  irrecv.setUnknownThreshold(kMinUnknownSize);
+#endif                                       // DECODE_HASH
+  irrecv.setTolerance(kTolerancePercentage); // Override the default tolerance.
+  irrecv.enableIRIn();                       // Start the receiver
 }
 
-void loop() {
+// The repeating section of the code
-  // put your main code here, to run repeatedly:
+void loop()
+{
+  // Check if the IR code has been received.
+  if (irrecv.decode(&results))
+  {
+    // Display a crude timestamp.
+    uint32_t now = millis();
+    Serial.printf(D_STR_TIMESTAMP " : %06u.%03u\n", now / 1000, now % 1000);
+    // Check if we got an IR message that was to big for our capture buffer.
+    if (results.overflow)
+      Serial.printf(D_WARN_BUFFERFULL "\n", kCaptureBufferSize);
+    // Display the library version the message was captured with.
+    Serial.println(D_STR_LIBRARY "   : v" _IRREMOTEESP8266_VERSION_STR "\n");
+    // Display the tolerance percentage if it has been change from the default.
+    if (kTolerancePercentage != kTolerance)
+      Serial.printf(D_STR_TOLERANCE " : %d%%\n", kTolerancePercentage);
+    // Display the basic output of what we found.
+    Serial.print(resultToHumanReadableBasic(&results));
+    // Display any extra A/C info if we have it.
+    String description = IRAcUtils::resultAcToString(&results);
+    if (description.length())
+      Serial.println(D_STR_MESGDESC ": " + description);
+    yield(); // Feed the WDT as the text output can take a while to print.
+#if LEGACY_TIMING_INFO
+    // Output legacy RAW timing info of the result.
+    Serial.println(resultToTimingInfo(&results));
+    yield(); // Feed the WDT (again)
+#endif       // LEGACY_TIMING_INFO
+    // Output the results as source code
+    Serial.println(resultToSourceCode(&results));
+    Serial.println(); // Blank line between entries
+    yield();          // Feed the WDT (again)
   }
-
-// put function definitions here:
-int myFunction(int x, int y) {
-  return x + y;
 }