Merge pull request #11 from dmadison/development

Separated Adalight Functions
This commit is contained in:
David Madison 2017-05-05 09:49:22 -04:00 committed by GitHub
commit 393a4ac102
2 changed files with 153 additions and 120 deletions

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@ -4,7 +4,7 @@
* library (http://fastled.io) for driving led strips. * library (http://fastled.io) for driving led strips.
* *
* http://github.com/dmadison/Adalight-FastLED * http://github.com/dmadison/Adalight-FastLED
* Last Updated: 2017-04-23 * Last Updated: 2017-05-05
*/ */
// --- General Settings // --- General Settings
@ -19,16 +19,18 @@ static const uint8_t
// --- Serial Settings // --- Serial Settings
static const unsigned long static const unsigned long
SerialSpeed = 115200, // serial port speed, max available SerialSpeed = 115200; // serial port speed, max available
SerialTimeout = 150000; // time before LEDs are shut off, if no data static const uint16_t
// (150 seconds) SerialTimeout = 150; // time before LEDs are shut off if no data (in seconds)
// --- Optional Settings (uncomment to add) // --- Optional Settings (uncomment to add)
//#define CLEAR_ON_START // LEDs are cleared on reset //#define CLEAR_ON_START // LEDs are cleared on reset
//#define GROUND_PIN 10 // additional grounding pin (optional) //#define GROUND_PIN 10 // additional grounding pin (optional)
//#define CALIBRATE // sets all LEDs to the color of the first //#define CALIBRATE // sets all LEDs to the color of the first
//#define DEBUG_LED 13 // turns on the Arduino's built-in LED
// if the magic word + checksum match // --- Debug Settings (uncomment to add)
//#define DEBUG_LED 13 // toggles the Arduino's built-in LED on header match
//#define DEBUG_FPS 8 // enables a pulse on LED latch
// -------------------------------------------------------------------- // --------------------------------------------------------------------
@ -63,6 +65,35 @@ static const uint8_t magic[] = {
#define MODE_HEADER 0 #define MODE_HEADER 0
#define MODE_DATA 1 #define MODE_DATA 1
static uint8_t
mode = MODE_HEADER;
static int16_t
c;
static uint16_t
outPos;
static uint32_t
bytesRemaining;
static unsigned long
t,
lastByteTime,
lastAckTime;
// Debug macros initialized
#ifdef DEBUG_LED
#define ON 1
#define OFF 0
#define D_LED(x) do {digitalWrite(DEBUG_LED, x);} while(0)
#else
#define D_LED(x)
#endif
#ifdef DEBUG_FPS
#define D_FPS do {digitalWrite(DEBUG_FPS, HIGH); digitalWrite(DEBUG_FPS, LOW);} while (0)
#else
#define D_FPS
#endif
void setup(){ void setup(){
#ifdef GROUND_PIN #ifdef GROUND_PIN
pinMode(GROUND_PIN, OUTPUT); pinMode(GROUND_PIN, OUTPUT);
@ -74,6 +105,10 @@ void setup(){
digitalWrite(DEBUG_LED, LOW); digitalWrite(DEBUG_LED, LOW);
#endif #endif
#ifdef DEBUG_FPS
pinMode(DEBUG_FPS, OUTPUT);
#endif
FastLED.addLeds<LED_TYPE, Led_Pin, COLOR_ORDER>(leds, Num_Leds); FastLED.addLeds<LED_TYPE, Led_Pin, COLOR_ORDER>(leds, Num_Leds);
FastLED.setBrightness(Brightness); FastLED.setBrightness(Brightness);
@ -82,53 +117,49 @@ void setup(){
#endif #endif
Serial.begin(SerialSpeed); Serial.begin(SerialSpeed);
Serial.print("Ada\n"); // Send ACK string to host
lastByteTime = lastAckTime = millis(); // Set initial counters
}
void loop(){
adalight(); adalight();
} }
void adalight(){ void adalight(){
static uint8_t t = millis(); // Save current time
mode = MODE_HEADER;
static uint8_t
headPos,
hi, lo, chk;
int16_t
c;
static uint16_t
outPos;
static uint32_t
bytesRemaining;
unsigned long
t;
static unsigned long
lastByteTime,
lastAckTime;
Serial.print("Ada\n"); // Send ACK string to host
lastByteTime = lastAckTime = millis();
// loop() is avoided as even that small bit of function overhead
// has a measurable impact on this code's overall throughput.
for(;;) {
// Implementation is a simple finite-state machine.
// Regardless of mode, check for serial input each time:
t = millis();
// If there is new serial data
if((c = Serial.read()) >= 0){ if((c = Serial.read()) >= 0){
lastByteTime = lastAckTime = t; // Reset timeout counters lastByteTime = lastAckTime = t; // Reset timeout counters
switch(mode) { switch(mode) {
case MODE_HEADER: case MODE_HEADER:
headerMode();
break;
case MODE_DATA:
dataMode();
break;
}
}
else {
// No new data
timeouts();
}
}
void headerMode(){
static uint8_t
headPos,
hi, lo, chk;
if(headPos < MAGICSIZE){ if(headPos < MAGICSIZE){
if(c == magic[headPos]) headPos++; // Check if magic word matches
else headPos = 0; if(c == magic[headPos]) {headPos++;}
else {headPos = 0;}
} }
else{ else{
// Magic word matches! Now verify checksum
switch(headPos){ switch(headPos){
case HICHECK: case HICHECK:
hi = c; hi = c;
@ -143,10 +174,7 @@ void adalight(){
if(chk == (hi ^ lo ^ 0x55)) { if(chk == (hi ^ lo ^ 0x55)) {
// Checksum looks valid. Get 16-bit LED count, add 1 // Checksum looks valid. Get 16-bit LED count, add 1
// (# LEDs is always > 0) and multiply by 3 for R,G,B. // (# LEDs is always > 0) and multiply by 3 for R,G,B.
#ifdef DEBUG_LED D_LED(ON);
digitalWrite(DEBUG_LED, HIGH);
#endif
bytesRemaining = 3L * (256L * (long)hi + (long)lo + 1L); bytesRemaining = 3L * (256L * (long)hi + (long)lo + 1L);
outPos = 0; outPos = 0;
memset(leds, 0, Num_Leds * sizeof(struct CRGB)); memset(leds, 0, Num_Leds * sizeof(struct CRGB));
@ -156,12 +184,25 @@ void adalight(){
break; break;
} }
} }
break; }
case MODE_DATA: void dataMode(){
// If LED data is not full
if(bytesRemaining > 0) {
if (outPos < sizeof(leds)){ if (outPos < sizeof(leds)){
dataSet();
}
bytesRemaining--;
if(bytesRemaining == 0) {
// End of data -- issue latch:
mode = MODE_HEADER; // Begin next header search
FastLED.show();
D_FPS;
D_LED(OFF);
}
}
void dataSet(){
#ifdef CALIBRATE #ifdef CALIBRATE
if(outPos < 3) if(outPos < 3)
ledsRaw[outPos++] = c; ledsRaw[outPos++] = c;
@ -172,40 +213,20 @@ void adalight(){
#else #else
ledsRaw[outPos++] = c; // Issue next byte ledsRaw[outPos++] = c; // Issue next byte
#endif #endif
} }
bytesRemaining--;
}
if(bytesRemaining == 0) {
// End of data -- issue latch:
mode = MODE_HEADER; // Begin next header search
FastLED.show();
#ifdef DEBUG_LED void timeouts(){
digitalWrite(DEBUG_LED, LOW);
#endif
}
break;
} // end switch
} // end serial if
else {
// No data received. If this persists, send an ACK packet // No data received. If this persists, send an ACK packet
// to host once every second to alert it to our presence. // to host once every second to alert it to our presence.
if((t - lastAckTime) > 1000) { if((t - lastAckTime) > 1000) {
Serial.print("Ada\n"); // Send ACK string to host Serial.print("Ada\n"); // Send ACK string to host
lastAckTime = t; // Reset counter lastAckTime = t; // Reset counter
}
// If no data received for an extended time, turn off all LEDs. // If no data received for an extended time, turn off all LEDs.
if((t - lastByteTime) > SerialTimeout) { if((t - lastByteTime) > SerialTimeout * 1000) {
memset(leds, 0, Num_Leds * sizeof(struct CRGB)); //filling Led array by zeroes memset(leds, 0, Num_Leds * sizeof(struct CRGB)); //filling Led array by zeroes
FastLED.show(); FastLED.show();
lastByteTime = t; // Reset counter lastByteTime = t; // Reset counter
} }
} // end else }
} // end for(;;)
}
void loop()
{
// loop() is avoided as even that small bit of function overhead
// has a measurable impact on this code's overall throughput.
} }

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@ -27,7 +27,19 @@ Additional settings allow for adjusting:
There are also optional settings to clear the LEDs on reset, configure a dedicated ground pin, and to put the Arduino into a "calibration" mode, where all LED colors match the first LED. There are also optional settings to clear the LEDs on reset, configure a dedicated ground pin, and to put the Arduino into a "calibration" mode, where all LED colors match the first LED.
Upload to your Arduino and use a corresponding PC application to stream color data. You can get the Processing files from the [main Adalight repository](https://github.com/adafruit/Adalight), though I would recommend using [Patrick Siegler's](https://github.com/psieg/) fork of Lightpacks's Prismatik, which you can find [here](https://github.com/psieg/Lightpack). Upload to your Arduino and use a corresponding PC application to stream color data. You can get the Processing files from the [main Adalight repository](https://github.com/adafruit/Adalight), though I would recommend using [Patrick Siegler's](https://github.com/psieg/) fork of Lightpacks's Prismatik, which you can find [here](https://github.com/psieg/Lightpack/releases).
## Debug Settings
The code includes two debugging options:
- DEBUG_LED
- DEBUG_FPS
`DEBUG_LED` will turn on the Arduino's built-in LED on a successful header match, and off when the LEDs latch. If your LEDs aren't working, this will help confirm that the Arduino is receiving properly formatted serial data.
`DEBUG_FPS`, similarly, will toggle a given pin when the LEDs latch. This is useful for measuring framerate with external hardware, like a logic analyzer.
To enable either of these settings, uncomment their respective '#define' lines.
## Issues and LED-types ## Issues and LED-types