Initial NeoPixel Support

lib/tinyNeoPixel_Static/COPYING

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
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+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
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lib/tinyNeoPixel_Static/tinyNeoPixel_Static.h

@@ -0,0 +1,327 @@
+/*--------------------------------------------------------------------
+  This file is part of the tinyNeoPixel library, derived from
+  Adafruit_NeoPixel.
+
+  NeoPixel is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation, either version 3 of
+  the License, or (at your option) any later version.
+
+  NeoPixel is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with NeoPixel.  If not, see
+  <http://www.gnu.org/licenses/>.
+  --------------------------------------------------------------------*/
+// *INDENT-OFF* astyle hates this file
+// *PAD-OFF* and destroys the lookup tables!
+
+#ifndef TINYNEOPIXEL_H
+#define TINYNEOPIXEL_H
+
+#include <Arduino.h>
+
+#if (__AVR_ARCH__ < 100)
+  #error "This version of the library only supports AVRxt parts (tinyAVR 0/1/2-series, megaAVR 0-series and the AVR DA/DB/DD parts. For tinyNeoPixel, for classic AVR, get from ATTinyCore package"
+#endif
+
+// The order of primary colors in the NeoPixel data stream can vary
+// among device types, manufacturers and even different revisions of
+// the same item.  The third parameter to the Adafruit_NeoPixel
+// constructor encodes the per-pixel byte offsets of the red, green
+// and blue primaries (plus white, if present) in the data stream --
+// the following #defines provide an easier-to-use named version for
+// each permutation.  e.g. NEO_GRB indicates a NeoPixel-compatible
+// device expecting three bytes per pixel, with the first byte
+// containing the green value, second containing red and third
+// containing blue.  The in-memory representation of a chain of
+// NeoPixels is the same as the data-stream order; no re-ordering of
+// bytes is required when issuing data to the chain.
+
+// Bits 5,4 of this value are the offset (0-3) from the first byte of
+// a pixel to the location of the red color byte.  Bits 3,2 are the
+// green offset and 1,0 are the blue offset.  If it is an RGBW-type
+// device (supporting a white primary in addition to R,G,B), bits 7,6
+// are the offset to the white byte...otherwise, bits 7,6 are set to
+// the same value as 5,4 (red) to indicate an RGB (not RGBW) device.
+// i.e. binary representation:
+// 0bWWRRGGBB for RGBW devices
+// 0bRRRRGGBB for RGB
+
+// RGB NeoPixel permutations; white and red offsets are always same
+// Offset:         W          R          G          B
+#define NEO_RGB  ((0 << 6) | (0 << 4) | (1 << 2) | (2))
+#define NEO_RBG  ((0 << 6) | (0 << 4) | (2 << 2) | (1))
+#define NEO_GRB  ((1 << 6) | (1 << 4) | (0 << 2) | (2))
+#define NEO_GBR  ((2 << 6) | (2 << 4) | (0 << 2) | (1))
+#define NEO_BRG  ((1 << 6) | (1 << 4) | (2 << 2) | (0))
+#define NEO_BGR  ((2 << 6) | (2 << 4) | (1 << 2) | (0))
+
+// RGBW NeoPixel permutations; all 4 offsets are distinct
+// Offset:         W          R          G          B
+#define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3))
+#define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2))
+#define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3))
+#define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2))
+#define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1))
+#define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1))
+
+#define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3))
+#define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2))
+#define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3))
+#define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2))
+#define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1))
+#define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1))
+
+#define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3))
+#define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2))
+#define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3))
+#define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2))
+#define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1))
+#define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1))
+
+#define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0))
+#define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0))
+#define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0))
+#define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0))
+#define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0))
+#define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0))
+
+#define NEO_KHZ800 0x0000 ///< 800 KHz data transmission
+
+// 400 kHz neopixels are virtually absent from the market today
+// They are not supported.
+
+// These two tables are declared outside the Adafruit_NeoPixel class
+// because some boards may require oldschool compilers that don't
+// handle the C++11 constexpr keyword.
+
+/* A pre-calculated 8-bit sine look-up table stored in flash for use
+with the sine8() function. This is apparently of use in some animation
+algorithms. If __AVR_ARCH__==103, then all of the flash is memory
+mapped, and we can simply declare it const, access it like a
+normal variable, and it won't be copied to RAM.
+
+AVRxt devices with too much flash for all of it to be mapped
+which includes the AVR64Dx and AVR128Dx parts. DxCore defines a
+.section for the area of PROGMEM that is mapped by default, and
+a MAPPED_PROGMEM macro. A variable declared const MAPPED_PROGMEM can
+be accessed normally, but will be stored in the flash and not copied to RAM.
+
+Finally, if neither of those are an option - it gets declared with PROGMEM
+
+
+   Copy & paste this snippet into a Python REPL to regenerate:
+import math
+for x in range(256):
+    print("{:3},".format(int((math.sin(x/128.0*math.pi)+1.0)*127.5+0.5))),
+    if x&15 == 15: print
+*/
+#if (__AVR_ARCH__==103)
+  // All out flash is mapped - yay!
+  static const uint8_t _NeoPixelSineTable[256] = {
+#elif defined(MAPPED_PROGMEM)
+  // Some of it is - but we can put stuff there - yay!
+  static const uint8_t MAPPED_PROGMEM _NeoPixelSineTable[256] = {
+#else
+  // Back to progmem...
+  static const uint8_t PROGMEM _NeoPixelSineTable[256] = {
+#endif
+  128,131,134,137,140,143,146,149,152,155,158,162,165,167,170,173,
+  176,179,182,185,188,190,193,196,198,201,203,206,208,211,213,215,
+  218,220,222,224,226,228,230,232,234,235,237,238,240,241,243,244,
+  245,246,248,249,250,250,251,252,253,253,254,254,254,255,255,255,
+  255,255,255,255,254,254,254,253,253,252,251,250,250,249,248,246,
+  245,244,243,241,240,238,237,235,234,232,230,228,226,224,222,220,
+  218,215,213,211,208,206,203,201,198,196,193,190,188,185,182,179,
+  176,173,170,167,165,162,158,155,152,149,146,143,140,137,134,131,
+  128,124,121,118,115,112,109,106,103,100, 97, 93, 90, 88, 85, 82,
+   79, 76, 73, 70, 67, 65, 62, 59, 57, 54, 52, 49, 47, 44, 42, 40,
+   37, 35, 33, 31, 29, 27, 25, 23, 21, 20, 18, 17, 15, 14, 12, 11,
+   10,  9,  7,  6,  5,  5,  4,  3,  2,  2,  1,  1,  1,  0,  0,  0,
+    0,  0,  0,  0,  1,  1,  1,  2,  2,  3,  4,  5,  5,  6,  7,  9,
+   10, 11, 12, 14, 15, 17, 18, 20, 21, 23, 25, 27, 29, 31, 33, 35,
+   37, 40, 42, 44, 47, 49, 52, 54, 57, 59, 62, 65, 67, 70, 73, 76,
+   79, 82, 85, 88, 90, 93, 97,100,103,106,109,112,115,118,121,124};
+
+/* Similar to above, but for an 8-bit gamma-correction table.
+   Copy & paste this snippet into a Python REPL to regenerate:
+import math
+gamma=2.6
+for x in range(256):
+    print("{:3},".format(int(math.pow((x)/255.0,gamma)*255.0+0.5))),
+    if x&15 == 15: print
+*/
+#if (__AVR_ARCH__==103)
+  // All our flash is mapped - yay!
+  static const uint8_t _NeoPixelGammaTable[256] = {
+#elif defined(MAPPED_PROGMEM)
+  // Some of it is - but we can put stuff there - yay!
+  static const uint8_t MAPPED_PROGMEM _NeoPixelGammaTable[256] = {
+#else
+  // Back to progmem...
+  static const uint8_t PROGMEM _NeoPixelGammaTable[256] = {
+#endif
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+    0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  2,  2,  2,  2,  2,  2,  2,  2,  3,  3,  3,  3,
+    3,  3,  4,  4,  4,  4,  5,  5,  5,  5,  5,  6,  6,  6,  6,  7,
+    7,  7,  8,  8,  8,  9,  9,  9, 10, 10, 10, 11, 11, 11, 12, 12,
+   13, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20,
+   20, 21, 21, 22, 22, 23, 24, 24, 25, 25, 26, 27, 27, 28, 29, 29,
+   30, 31, 31, 32, 33, 34, 34, 35, 36, 37, 38, 38, 39, 40, 41, 42,
+   42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+   58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73, 75,
+   76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 89, 90, 92, 93, 94, 96,
+   97, 99,100,102,103,105,106,108,109,111,112,114,115,117,119,120,
+  122,124,125,127,129,130,132,134,136,137,139,141,143,145,146,148,
+  150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,
+  182,184,186,188,191,193,195,197,199,202,204,206,209,211,213,215,
+  218,220,223,225,227,230,232,235,237,240,242,245,247,250,252,255};
+
+
+typedef uint8_t  neoPixelType;
+
+class tinyNeoPixel {
+
+  public:
+
+    // Constructor: number of LEDs, pin number, LED type
+    tinyNeoPixel(uint16_t n, uint8_t p, neoPixelType t, uint8_t *pxl);
+    ~tinyNeoPixel();
+
+ void
+    show(void),
+    setPin(uint8_t p),
+    setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
+    setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w),
+    setPixelColor(uint16_t n, uint32_t c),
+    fill(uint32_t c=0, uint16_t first=0, uint16_t count=0),
+    setBrightness(uint8_t b),
+    clear();
+  uint8_t
+   *getPixels(void) const,
+    getBrightness(void) const;
+  uint16_t
+    numPixels(void) const;
+  uint32_t
+    getPixelColor(uint16_t n) const;
+  uint8_t getPin(void) { return pin; }
+  void begin(void) {return;}
+  /*!
+    @brief   An 8-bit integer sine wave function, not directly compatible
+             with standard trigonometric units like radians or degrees.
+    @param   x  Input angle, 0-255; 256 would loop back to zero, completing
+                the circle (equivalent to 360 degrees or 2 pi radians).
+                One can therefore use an unsigned 8-bit variable and simply
+                add or subtract, allowing it to overflow/underflow and it
+                still does the expected contiguous thing.
+    @return  Sine result, 0 to 255, or -128 to +127 if type-converted to
+             a signed int8_t, but you'll most likely want unsigned as this
+             output is often used for pixel brightness in animation effects.
+  */
+  static uint8_t    sine8(uint8_t x) { // 0-255 in, 0-255 out
+    #if (__AVR_ARCH__==103 || defined(MAPPED_PROGMEM))
+      return _NeoPixelSineTable[x];
+    #else     // We had to put it in PROGMEM, and that's how we get it out
+      return pgm_read_byte(&_NeoPixelSineTable[x]); // 0-255 in, 0-255 out
+    #endif
+  }
+
+  /*!
+    @brief   An 8-bit gamma-correction function for basic pixel brightness
+             adjustment. Makes color transitions appear more perceptially
+             correct.
+    @param   x  Input brightness, 0 (minimum or off/black) to 255 (maximum).
+    @return  Gamma-adjusted brightness, can then be passed to one of the
+             setPixelColor() functions. This uses a fixed gamma correction
+             exponent of 2.6, which seems reasonably okay for average
+             NeoPixels in average tasks. If you need finer control you'll
+             need to provide your own gamma-correction function instead.
+  */
+
+  static uint8_t    gamma8(uint8_t x) {
+    #if (__AVR_ARCH__==103 || defined(MAPPED_PROGMEM))
+      return _NeoPixelGammaTable[x];
+    #else
+      return pgm_read_byte(&_NeoPixelGammaTable[x]);
+    #endif
+  }
+  /*!
+    @brief   Convert separate red, green and blue values into a single
+             "packed" 32-bit RGB color.
+    @param   r  Red brightness, 0 to 255.
+    @param   g  Green brightness, 0 to 255.
+    @param   b  Blue brightness, 0 to 255.
+    @return  32-bit packed RGB value, which can then be assigned to a
+             variable for later use or passed to the setPixelColor()
+             function. Packed RGB format is predictable, regardless of
+             LED strand color order.
+  */
+  static uint32_t   Color(uint8_t r, uint8_t g, uint8_t b) {
+    return ((uint32_t)r << 16) | ((uint32_t)g <<  8) | b;
+  }
+  /*!
+    @brief   Convert separate red, green, blue and white values into a
+             single "packed" 32-bit WRGB color.
+    @param   r  Red brightness, 0 to 255.
+    @param   g  Green brightness, 0 to 255.
+    @param   b  Blue brightness, 0 to 255.
+    @param   w  White brightness, 0 to 255.
+    @return  32-bit packed WRGB value, which can then be assigned to a
+             variable for later use or passed to the setPixelColor()
+             function. Packed WRGB format is predictable, regardless of
+             LED strand color order.
+  */
+  static uint32_t   Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
+    return ((uint32_t)w << 24) | ((uint32_t)r << 16) | ((uint32_t)g <<  8) | b;
+  }
+  static uint32_t   ColorHSV(uint16_t hue, uint8_t sat=255, uint8_t val=255);
+  /*!
+    @brief   A gamma-correction function for 32-bit packed RGB or WRGB
+             colors. Makes color transitions appear more perceptially
+             correct.
+    @param   x  32-bit packed RGB or WRGB color.
+    @return  Gamma-adjusted packed color, can then be passed in one of the
+             setPixelColor() functions. Like gamma8(), this uses a fixed
+             gamma correction exponent of 2.6, which seems reasonably okay
+             for average NeoPixels in average tasks. If you need finer
+             control you'll need to provide your own gamma-correction
+             function instead.
+  */
+  static uint32_t gamma32(uint32_t x);
+
+  #if (!defined(DISABLEMILLIS) && !defined(MILLIS_USE_TIMERRTC) && !defined(MILLIS_USE_TIMERRTC_XTAL) && !defined(MILLIS_USE_TIMERRTC_XOSC))
+    inline bool canShow(void) { return (micros() - endTime) >= 50L; }
+  #else
+    inline bool canShow(void) {return 1;} //we don't have micros here;
+  #endif
+
+
+ private:
+
+  uint16_t
+    numLEDs,       // Number of RGB LEDs in strip
+    numBytes;      // Size of 'pixels' buffer below (3 or 4 bytes/pixel)
+  int8_t
+    pin;           // Output pin number (-1 if not yet set)
+  uint8_t
+    brightness,
+   *pixels,        // Holds LED color values (3 or 4 bytes each)
+    rOffset,       // Index of red byte within each 3- or 4-byte pixel
+    gOffset,       // Index of green byte
+    bOffset,       // Index of blue byte
+    wOffset;       // Index of white byte (same as rOffset if no white)
+  uint32_t
+    endTime;       // Latch timing reference
+  volatile uint8_t
+    *port;         // Output PORT register
+  uint8_t
+    pinMask;       // Output PORT bitmask
+
+};
+
+#endif // TINYNEOPIXEL_H

platformio.ini

@@ -14,7 +14,7 @@ board = ATtiny3216
 framework = arduino
 
 # Board Config
-board_build.f_cpu = 5000000L
+board_build.f_cpu = 8000000L
 board_hardware.oscillator = internal
 board_hardware.bod = disabled
 

src/main.cpp

@@ -31,6 +31,14 @@ void blink(uint8_t num) {
 #define BLINK_LED(COUNT)
 #endif
 
+// WS2812B
+#include <tinyNeoPixel_Static.h>
+
+#define WS_NUM_PIXELS 2
+
+byte pixels[WS_NUM_PIXELS * 3];
+tinyNeoPixel leds = tinyNeoPixel(WS_NUM_PIXELS, PIN_PC1, NEO_GRB, pixels);
+
 #if defined HAS_NO_SENSOR
   struct lora_data {
     uint8_t bat;
@@ -75,7 +83,7 @@ const lmic_pinmap lmic_pins = {
 
 // List of unused Pins - will be disabled for Power Saving
 #if defined DEBUG || defined HAS_SG112A || defined HAS_MHZ19C
-const int disabledPins[] = {PIN_PB5, PIN_PB4, PIN_PB1, PIN_PB0, PIN_PC3, PIN_PC2, PIN_PC1, PIN_PC0};
+const int disabledPins[] = {PIN_PB5, PIN_PB4, PIN_PB1, PIN_PB0, PIN_PC3, PIN_PC2, PIN_PC0};
 #else
 const int disabledPins[] = {PIN_PB5, PIN_PB4, PIN_PB3, PIN_PB2, PIN_PB1, PIN_PB0, PIN_PC3, PIN_PC2, PIN_PC1, PIN_PC0};
 #endif
@@ -109,12 +117,21 @@ void onEvent(ev_t ev) {
     case EV_JOINED:
       // Disable LinkCheck
       LMIC_setLinkCheckMode(0);
-      BLINK_LED(2);
+      leds.setPixelColor(1, leds.Color(0,127,0));
+      leds.show();
+      delay(1000);
+      leds.setPixelColor(1, leds.Color(0,0,0));
+      leds.show();
       DEBUG_PRINTLN("OTAA Join Succeeded");
       break;
     case EV_TXCOMPLETE:
       // Check for Downlink
       DEBUG_PRINTLN("LoRa Packet Sent");
+      leds.setPixelColor(1, leds.Color(0,127,0));
+      leds.show();
+      delay(100);
+      leds.setPixelColor(1, leds.Color(0,0,0));
+      leds.show();
       if ((int)LMIC.dataLen == 2) {
         // We got a Packet with the right size - lets assemble it into a uint16_t
         DEBUG_PRINTLN("Received Downlink")
@@ -123,6 +140,11 @@ void onEvent(ev_t ev) {
         DEBUG_PRINTLN(tmpslp);
         sleep_time = tmpslp;
         EEPROM.put(ADDR_SLP, tmpslp);
+        leds.setPixelColor(1, leds.Color(0,0,127));
+        leds.show();
+        delay(250);
+        leds.setPixelColor(1, leds.Color(0,0,0));
+        leds.show();
       }
 
       // Got to sleep for specified Time
@@ -169,6 +191,25 @@ void do_send(osjob_t* j) {
     // Get Sensor Readings Into Data Paket
     #ifndef HAS_NO_SENSOR
     sensor.getSensorData(data);
+    
+    // ppm_level
+    // 0 -> < 1000 ppm green
+    // 1 -> < 1800 ppm yellow
+    // 2 -> > 1000 ppm red
+
+    if (data.ppm > 0 && data.ppm <= 1000) {
+      leds.setPixelColor(0, leds.Color(0,127,0));
+      leds.show();
+    } else if (data.ppm > 1000 && data.ppm <= 1800) {
+      leds.setPixelColor(0, leds.Color(127,127,0));
+      leds.show();
+    } else if (data.ppm > 1800) {
+      leds.setPixelColor(0, leds.Color(127,0,0));
+      leds.show();
+    } else {
+      leds.setPixelColor(0, leds.Color(0,0,0));
+      leds.show();
+    }
     #endif
 
     // Queue Packet for Sending
@@ -186,6 +227,9 @@ void setup()
   Wire.begin();
   SPI.begin();
 
+  pinMode(PIN_PC1, OUTPUT);
+  leds.setBrightness(127);
+
   // Disable unused Pins (for power saving)
   for (int i = 0; i < (sizeof(disabledPins) / sizeof(disabledPins[0])) - 1; i++)
     pinMode(disabledPins[i], INPUT_PULLUP);
@@ -225,6 +269,8 @@ void setup()
   DEBUG_PRINTLN("Setup Finished");
   
   // Schedule First Send (Triggers OTAA Join as well)
+  leds.setPixelColor(1, leds.Color(127, 127, 0));
+  leds.show();
   do_send(&sendjob);
 }