/* * HT16K33_driver.cpp * A library for Grove - grove_quad_alphanumeric_display * * Copyright (c) 2018 seeed technology inc. * Website : www.seeed.cc * Author : Jerry Yip * Create Time: 2018-06 * Version : 0.1 * Change Log : * Copyright (c) 2018 seeed technology inc. * Website : www.seeed.cc * Author : downey * Create Time: 2018-06 * Version : 1.1 * Change Log :for digital tube development. * * The MIT License (MIT) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include #include "HT16K33_driver.h" bool HT16K33::writeBytes(uint8_t devAddr, uint8_t regAddr, uint8_t length, uint8_t* data) { Wire.beginTransmission(devAddr); Wire.write((uint8_t) regAddr); for (uint8_t i = 0; i < length; i++) { Wire.write((uint8_t) data[i]); } Wire.endTransmission(); } void HT16K33::init(uint8_t addr) { _addr = addr; // turn on oscillator writeBytes(_addr, 0x21, 0, (uint8_t *)NULL); } /*brightness:0-15*/ void HT16K33::setBrightness(uint8_t brightness) { writeBytes(_addr, (0xE0 | brightness), 0, (uint8_t *)NULL); } void HT16K33::setBlinkRate(blink_type_t blink_type) { writeBytes(_addr, (0x80 | 0x01 | (blink_type << 1)), 0, (uint8_t *)NULL); }