Updating Chaser.ino and Flasher.ino examples to properly wait for the…

… serial monitor at program start and changing the baud rate to 115200. Also updating the Flasher.ino print interval to 1000ms and slightly optimizing its wave calculation. Last, updating the library version to 2.3.2.

CHANGELOG.md

@@ -2,6 +2,14 @@
 
 This document details the changes between each release.
 
+## [2.3.2]
+
+### Changed
+* Chaser.ino and Flasher.ino examples now properly wait for the serial monitor
+  at program start. The baud was also changed to 115200.
+* Changed print interval in Flasher.ino to 1000ms.
+* Slightly optimized the Flasher.ino wave calculation.
+
 ## [2.3.1]
 
 ### Added

examples/Chaser/Chaser.ino

@@ -20,8 +20,9 @@ teensydmx::Sender dmxTx{Serial1};
 int channel;
 
 void setup() {
-  Serial.begin(9600);
-  delay(2000);  // Instead of while (!Serial), doesn't seem to work on Teensy
+  Serial.begin(115200);
+  while (!Serial && millis() < 4000) {  // Wait for the serial monitor to come up
+  }
   Serial.println("Starting.");
 
   dmxTx.begin();

examples/Flasher/Flasher.ino

@@ -17,7 +17,7 @@ constexpr unsigned long kDMXTimeout = 1000;
 constexpr uint8_t kLEDPin = 13;
 
 // Interval between printing received values.
-constexpr unsigned long kPrintInterval = 500;
+constexpr unsigned long kPrintInterval = 1000;
 
 namespace teensydmx = ::qindesign::teensydmx;
 
@@ -31,8 +31,9 @@ elapsedMillis lastFrameTime;
 uint8_t lastValue;
 
 void setup() {
-  Serial.begin(9600);
-  delay(2000);  // Instead of while (!Serial), doesn't seem to work on Teensy
+  Serial.begin(115200);
+  while (!Serial && millis() < 4000) {  // Wait for the serial monitor to come up
+  }
   Serial.println("Starting.");
 
   pinMode(kLEDPin, OUTPUT);
@@ -59,13 +60,15 @@ void loop() {
   if (lastFrameTime < kDMXTimeout) {
     // Use a wave equation to make the speed-ups and slow-downs smoother
     // using the offset, phi
-    static int period = 1000;
-    static long phi = 0 * period;
-    int newPeriod = map(lastValue, 0, 255, 1000, 30);  // T range is 1s to 30ms
-    long t = static_cast<long>(millis());
-    phi = (t*period - newPeriod*(t - phi))/period;
-    period = newPeriod;
-    int v = static_cast<int>(-(phi - t)%period);
+    static int32_t period = 1000;
+    static int64_t phi = 0 * period;
+    int32_t newPeriod = map(lastValue, 0, 255, 1000, 30);  // T range is 1s to 30ms
+    int64_t t = millis();
+    if (newPeriod != period) {
+      phi = (t*(period - newPeriod) + newPeriod*phi)/period;
+      period = newPeriod;
+    }
+    int32_t v = -(phi - t)%period;
 
     if (v < period/2) {
       digitalWrite(kLEDPin, HIGH);

library.json

@@ -11,7 +11,7 @@
     "type": "git",
     "url": "https://github.com/ssilverman/TeensyDMX"
   },
-  "version": "2.3.1",
+  "version": "2.3.2",
   "license": "BSD-3-Clause",
   "homepage": "https://github.com/ssilverman/TeensyDMX",
   "frameworks": "arduino",

library.properties

@@ -1,5 +1,5 @@
 name=TeensyDMX
-version=2.3.1
+version=2.3.2
 author=Shawn Silverman <[email protected]>
 maintainer=Shawn Silverman <[email protected]>
 sentence=A DMX library for the Teensy.