initial upload
Harald Pichler
parent
578dbaa431
commit
60c6495fa3
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/*
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LED bar library V2.0
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Copyright (c) 2010 Seeed Technology Inc.
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Original Author: LG
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Modify: Loovee, 2014-2-26
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User can choose which Io to be used.
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The MIT License (MIT)
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Copyright (c) 2013 Seeed Technology Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "Grove_LED_Bar.h"
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Grove_LED_Bar::Grove_LED_Bar(unsigned char pinClock, unsigned char pinData, bool greenToRed)
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{
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__pinClock = pinClock;
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__pinData = pinData;
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__greenToRed = greenToRed; // ascending or decending
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for (byte i = 0; i < 10; i++)
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__state[i] = 0x00; // persist state so individual leds can be toggled
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pinMode(__pinClock, OUTPUT);
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pinMode(__pinData, OUTPUT);
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}
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// Send the latch command
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void Grove_LED_Bar::latchData()
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{
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digitalWrite(__pinData, LOW);
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delayMicroseconds(10);
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for (unsigned char i = 0; i < 4; i++)
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{
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digitalWrite(__pinData, HIGH);
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digitalWrite(__pinData, LOW);
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}
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}
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// Send 16 bits of data
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void Grove_LED_Bar::sendData(unsigned int data)
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{
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unsigned int state = 0;
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for (unsigned char i = 0; i < 16; i++)
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{
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unsigned int state1 = (data & 0x8000) ? HIGH : LOW;
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digitalWrite(__pinData, state1);
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//state = digitalRead(__pinClock) ? LOW : HIGH;
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state = 1-state;
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digitalWrite(__pinClock, state);
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data <<= 1;
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}
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}
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// Change the orientation
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// Green to red, or red to green
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void Grove_LED_Bar::setGreenToRed(bool greenToRed)
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{
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__greenToRed = greenToRed;
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setData(__state);
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}
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// Set level (0-10)
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// Level 0 means all leds off
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// Level 10 means all leds on
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// Level 4.5 means 4 LEDs on and the 5th LED's half on
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void Grove_LED_Bar::setLevel(float level)
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{
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level = max(0, min(10, level));
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level *= 8; // there are 8 (noticable) levels of brightness on each segment
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// Place number of 'level' of 1-bits on __state
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for (byte i = 0; i < 10; i++) {
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__state[i] = (level > 8) ? ~0 :
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(level > 0) ? ~(~0 << byte(level)) : 0;
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level -= 8;
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};
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setData(__state);
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}
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// Set a single led
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// led (1-10)
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// brightness (0-1)
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void Grove_LED_Bar::setLed(unsigned char led, float brightness)
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{
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led = max(1, min(10, led));
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brightness = max(0, min(brightness, 1));
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// Zero based index 0-9 for bitwise operations
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led--;
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// 8 (noticable) levels of brightness
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// 00000000 darkest
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// 00000011 brighter
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// ........
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// 11111111 brightest
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__state[led] = ~(~0 << (unsigned char) (brightness*8));
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setData(__state);
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}
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// Toggle a single led
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// led (1-10)
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void Grove_LED_Bar::toggleLed(unsigned char led)
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{
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led = max(1, min(10, led));
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// Zero based index 0-9 for bitwise operations
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led--;
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__state[led] = __state[led] ? 0 : ~0;
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setData(__state);
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}
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// each element in the state will hold the brightness level
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// 00000000 darkest
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// 00000011 brighter
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// ........
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// 11111111 brightest
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void Grove_LED_Bar::setData(unsigned char __state[])
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{
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sendData(GLB_CMDMODE);
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for (unsigned char i = 0; i < 10; i++)
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{
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if (__greenToRed)
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{
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// Go backward on __state
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sendData(__state[10-i-1]);
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}
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else
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{
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// Go forward on __state
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sendData(__state[i]);
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}
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}
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// Two extra empty bits for padding the command to the correct length
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sendData(0x00);
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sendData(0x00);
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latchData();
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}
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void Grove_LED_Bar::setBits(unsigned int bits)
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{
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for (unsigned char i = 0; i < 10; i++)
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{
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if ((bits % 2) == 1)
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__state[i] = 0xFF;
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else
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__state[i] = 0x00;
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bits /= 2;
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}
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setData(__state);
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}
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// Return the current bits
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unsigned int const Grove_LED_Bar::getBits()
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{
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unsigned int __bits = 0x00;
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for (unsigned char i = 0; i < 10; i++)
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{
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if (__state[i] != 0x0)
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__bits |= (0x1 << i);
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}
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return __bits;
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}
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@ -0,0 +1,73 @@
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/*
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LED bar library V2.0
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Copyright (c) 2010 Seeed Technology Inc.
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Original Author: LG
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Modify: Loovee, 2014-2-26
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User can choose which Io to be used.
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Modify: Long, 2015-01-07
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User can change the brightness level for each LED segment
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Rename constant to avoid name conflict
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The MIT License (MIT)
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Copyright (c) 2013 Seeed Technology Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
|
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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copies of the Software, and to permit persons to whom the Software is
|
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furnished to do so, subject to the following conditions:
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|
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
|
||||
|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef Grove_LED_Bar_H
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#define Grove_LED_Bar_H
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#include <Arduino.h>
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// Avoid name conflict
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#define GLB_CMDMODE 0x00 // Work on 8-bit mode
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#define GLB_ON 0xff // 8-bit 1 data
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#define GLB_OFF 0x00 // 8-bit 0 data
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class Grove_LED_Bar
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{
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private:
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unsigned int __pinClock; // Clock pin
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unsigned int __pinData; // Data pin
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bool __greenToRed; // Orientation (0 = red to green, 1 = green to red)
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unsigned char __state[10];// Led state, brightness for each LED
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void sendData(unsigned int data); // Send a word to led bar
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void latchData(void); // Load data into the latch register
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void setData(unsigned char bits[]);//Set data array
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public:
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Grove_LED_Bar(unsigned char pinClock, unsigned char pinData, bool greenToRed); // Initialize
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void begin(){pinMode(__pinClock, OUTPUT); pinMode(__pinData, OUTPUT);}
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void setGreenToRed(bool greenToRed); // (Re)set orientation
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void setLevel(float level); // Set level, range from 0 to 10
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void setLed(unsigned char led, float brightness);// Set brightness for a single led, range from 0 to 1
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void toggleLed(unsigned char led); // Toggle a single led
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void setBits(unsigned int bits); // Toggle leds to match given bits
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unsigned int const getBits(); // Get the current state
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};
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#endif
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