74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/*
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HT16K33_driver.cpp
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A library for Grove - grove_quad_alphanumeric_display
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Copyright (c) 2018 seeed technology inc.
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Website : www.seeed.cc
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Author : Jerry Yip
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Create Time: 2018-06
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Version : 0.1
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Change Log :
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Copyright (c) 2018 seeed technology inc.
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Website : www.seeed.cc
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Author : downey
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Create Time: 2018-06
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Version : 1.1
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Change Log :for digital tube development.
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The MIT License (MIT)
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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 <Arduino.h>
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#include "HT16K33_driver.h"
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void HT16K33::writeBytes(uint8_t devAddr, uint8_t regAddr, uint8_t length, uint8_t* data) {
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Wire.beginTransmission(devAddr);
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Wire.write((uint8_t) regAddr);
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for (uint8_t i = 0; i < length; i++) {
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Wire.write((uint8_t) data[i]);
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}
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Wire.endTransmission();
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}
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void HT16K33::init(uint8_t addr) {
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_addr = addr;
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// turn on oscillator
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writeBytes(_addr, 0x21, 0, (uint8_t*)NULL);
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}
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/*brightness:0-15*/
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void HT16K33::setBrightness(uint8_t brightness) {
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writeBytes(_addr, (0xE0 | brightness), 0, (uint8_t*)NULL);
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}
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void HT16K33::setBlinkRate(blink_type_t blink_type) {
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writeBytes(_addr, (0x80 | 0x01 | (blink_type << 1)), 0, (uint8_t*)NULL);
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}
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void HT16K33::clear() {
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}
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