74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
/*
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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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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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