Add Test2.

This tests functionality using a pair of Arduinos.

Author: shirriff

examples/IRtest2/IRtest2.pde

@@ -0,0 +1,290 @@
+/*
+ * Test send/receive functions of IRremote, using a pair of Arduinos.
+ *
+ * Arduino #1 should have an IR LED connected to the send pin (3).
+ * Arduino #2 should have an IR detector/demodulator connected to the
+ * receive pin (11) and a visible LED connected to pin 3.
+ *
+ * The cycle:
+ * Arduino #1 will wait 2 seconds, then run through the tests.
+ * It repeats this forever.
+ * Arduino #2 will wait for at least one second of no signal
+ * (to synchronize with #1). It will then wait for the same test
+ * signals. It will log all the status to the serial port. It will
+ * also indicate status through the LED, which will flash each time a test
+ * is completed. If there is an error, it will light up for 5 seconds.
+ *
+ * The test passes if the LED flashes 19 times, pauses, and then repeats.
+ * The test fails if the LED lights for 5 seconds.
+ *
+ * The test software automatically decides which board is the sender and which is
+ * the receiver by looking for an input on the send pin, which will indicate
+ * the sender. You should hook the serial port to the receiver for debugging.
+ * 
+ * Copyright 2010 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int LED_PIN = 3;
+
+IRrecv irrecv(RECV_PIN);
+IRsend irsend;
+
+decode_results results;
+
+#define RECEIVER 1
+#define SENDER 2
+#define ERROR 3
+
+int mode;
+
+void setup()
+{
+ Serial.begin(9600);
+ // Check RECV_PIN to decide if we're RECEIVER or SENDER
+ if (digitalRead(RECV_PIN) == HIGH) {
+ mode = RECEIVER;
+ irrecv.enableIRIn();
+ pinMode(LED_PIN, OUTPUT);
+ digitalWrite(LED_PIN, LOW);
+ Serial.println("Receiver mode");
+ } 
+ else {
+ mode = SENDER;
+ Serial.println("Sender mode");
+ }
+}
+
+// Wait for the gap between tests, to synchronize with
+// the sender.
+// Specifically, wait for a signal followed by a gap of at last gap ms.
+void waitForGap(int gap) {
+ Serial.println("Waiting for gap");
+ while (1) {
+ while (digitalRead(RECV_PIN) == LOW) { 
+ }
+ unsigned long time = millis();
+ while (digitalRead(RECV_PIN) == HIGH) {
+ if (millis() - time > gap) {
+ return;
+ }
+ }
+ }
+}
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+void dump(decode_results *results) {
+ int count = results->rawlen;
+ if (results->decode_type == UNKNOWN) {
+ Serial.println("Could not decode message");
+ } 
+ else {
+ if (results->decode_type == NEC) {
+ Serial.print("Decoded NEC: ");
+ } 
+ else if (results->decode_type == SONY) {
+ Serial.print("Decoded SONY: ");
+ } 
+ else if (results->decode_type == RC5) {
+ Serial.print("Decoded RC5: ");
+ } 
+ else if (results->decode_type == RC6) {
+ Serial.print("Decoded RC6: ");
+ }
+ Serial.print(results->value, HEX);
+ Serial.print(" (");
+ Serial.print(results->bits, DEC);
+ Serial.println(" bits)");
+ }
+ Serial.print("Raw (");
+ Serial.print(count, DEC);
+ Serial.print("): ");
+
+ for (int i = 0; i < count; i++) {
+ if ((i % 2) == 1) {
+ Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+ } 
+ else {
+ Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+ }
+ Serial.print(" ");
+ }
+ Serial.println("");
+}
+
+
+// Test send or receive.
+// If mode is SENDER, send a code of the specified type, value, and bits
+// If mode is RECEIVER, receive a code and verify that it is of the
+// specified type, value, and bits. For success, the LED is flashed;
+// for failure, the mode is set to ERROR.
+// The motivation behind this method is that the sender and the receiver
+// can do the same test calls, and the mode variable indicates whether
+// to send or receive.
+void test(char *label, int type, unsigned long value, int bits) {
+ if (mode == SENDER) {
+ Serial.println(label);
+ if (type == NEC) {
+ irsend.sendNEC(value, bits);
+ } 
+ else if (type == SONY) {
+ irsend.sendSony(value, bits);
+ } 
+ else if (type == RC5) {
+ irsend.sendRC5(value, bits);
+ } 
+ else if (type == RC6) {
+ irsend.sendRC6(value, bits);
+ } 
+ else {
+ Serial.print(label);
+ Serial.println("Bad type!");
+ }
+ delay(200);
+ } 
+ else if (mode == RECEIVER) {
+ irrecv.resume(); // Receive the next value
+ unsigned long max_time = millis() + 30000;
+ Serial.print(label);
+
+ // Wait for decode or timeout
+ while (!irrecv.decode(&results)) {
+ if (millis() > max_time) {
+ Serial.println("Timeout receiving data");
+ mode = ERROR;
+ return;
+ }
+ }
+ if (type == results.decode_type && value == results.value && bits == results.bits) {
+ Serial.println (": OK");
+ digitalWrite(LED_PIN, HIGH);
+ delay(20);
+ digitalWrite(LED_PIN, LOW);
+ } 
+ else {
+ Serial.println(": BAD");
+ dump(&results);
+ mode = ERROR;
+ }
+ }
+}
+
+// Test raw send or receive. This is similar to the test method,
+// except it send/receives raw data.
+void testRaw(char *label, unsigned int *rawbuf, int rawlen) {
+ if (mode == SENDER) {
+ Serial.println(label);
+ irsend.sendRaw(rawbuf, rawlen, 38 /* kHz */);
+ delay(200);
+ } 
+ else if (mode == RECEIVER ) {
+ irrecv.resume(); // Receive the next value
+ unsigned long max_time = millis() + 30000;
+ Serial.print(label);
+
+ // Wait for decode or timeout
+ while (!irrecv.decode(&results)) {
+ if (millis() > max_time) {
+ Serial.println("Timeout receiving data");
+ mode = ERROR;
+ return;
+ }
+ }
+
+ // Received length has extra first element for gap
+ if (rawlen != results.rawlen - 1) {
+ Serial.print("Bad raw length ");
+ Serial.println(results.rawlen, DEC);
+ mode = ERROR;
+ return;
+ }
+ for (int i = 0; i < rawlen; i++) {
+ long got = results.rawbuf[i+1] * USECPERTICK;
+ // Adjust for extra duration of marks
+ if (i % 2 == 0) { 
+ got -= MARK_EXCESS;
+ } 
+ else {
+ got += MARK_EXCESS;
+ }
+ // See if close enough, within 25%
+ if (rawbuf[i] * 1.25 < got || got * 1.25 < rawbuf[i]) {
+ Serial.println(": BAD");
+ dump(&results);
+ mode = ERROR;
+ return;
+ }
+
+ }
+ Serial.println (": OK");
+ digitalWrite(LED_PIN, HIGH);
+ delay(20);
+ digitalWrite(LED_PIN, LOW);
+ }
+} 
+
+// This is the raw data corresponding to NEC 0x12345678
+unsigned int sendbuf[] = { /* NEC format */
+ 9000, 4500,
+ 560, 560, 560, 560, 560, 560, 560, 1690, /* 1 */
+ 560, 560, 560, 560, 560, 1690, 560, 560, /* 2 */
+ 560, 560, 560, 560, 560, 1690, 560, 1690, /* 3 */
+ 560, 560, 560, 1690, 560, 560, 560, 560, /* 4 */
+ 560, 560, 560, 1690, 560, 560, 560, 1690, /* 5 */
+ 560, 560, 560, 1690, 560, 1690, 560, 560, /* 6 */
+ 560, 560, 560, 1690, 560, 1690, 560, 1690, /* 7 */
+ 560, 1690, 560, 560, 560, 560, 560, 560, /* 8 */
+ 560};
+
+void loop() {
+ if (mode == SENDER) {
+ delay(2000); // Delay for more than gap to give receiver a better chance to sync.
+ } 
+ else if (mode == RECEIVER) {
+ waitForGap(1000);
+ } 
+ else if (mode == ERROR) {
+ // Light up for 5 seconds for error
+ digitalWrite(LED_PIN, HIGH);
+ delay(5000);
+ digitalWrite(LED_PIN, LOW);
+ mode = RECEIVER; // Try again
+ return;
+ }
+
+ // The test suite.
+ test("SONY1", SONY, 0x123, 12);
+ test("SONY2", SONY, 0x000, 12);
+ test("SONY3", SONY, 0xfff, 12);
+ test("SONY4", SONY, 0x12345, 20);
+ test("SONY5", SONY, 0x00000, 20);
+ test("SONY6", SONY, 0xfffff, 20);
+ test("NEC1", NEC, 0x12345678, 32);
+ test("NEC2", NEC, 0x00000000, 32);
+ test("NEC3", NEC, 0xffffffff, 32);
+ test("NEC4", NEC, REPEAT, 32);
+ test("RC51", RC5, 0x12345678, 32);
+ test("RC52", RC5, 0x0, 32);
+ test("RC53", RC5, 0xffffffff, 32);
+ test("RC61", RC6, 0x12345678, 32);
+ test("RC62", RC6, 0x0, 32);
+ test("RC63", RC6, 0xffffffff, 32);
+
+ // Tests of raw sending and receiving.
+ // First test sending raw and receiving raw.
+ // Then test sending raw and receiving decoded NEC
+ // Then test sending NEC and receiving raw
+ testRaw("RAW1", sendbuf, 67);
+ if (mode == SENDER) {
+ testRaw("RAW2", sendbuf, 67);
+ test("RAW3", NEC, 0x12345678, 32);
+ } 
+ else {
+ test("RAW2", NEC, 0x12345678, 32);
+ testRaw("RAW3", sendbuf, 67);
+ }
+}