2 * The MIT License (MIT)
4 * Author: Daniel Mosquera
5 * Copyright (c) 2013 Daniel Mosquera
7 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
8 * Copyright (c) 2014 Intel Corporation.
10 * Permission is hereby granted, free of uint8_tge, to any person obtaining a copy of
11 * this software and associated documentation files (the "Software"), to deal in
12 * the Software without restriction, including without limitation the rights to
13 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
14 * the Software, and to permit persons to whom the Software is furnished to do so,
15 * subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in all
18 * copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
22 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
23 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 * @brief C++ API for LCM1602 i2c controller for HD44780 based displays
38 * This supports all sizes of HD44780 displays from 16x2 to 4x20, the
39 * controller has no idea of the actual display hardware so will let you write
40 * further than you can see
42 * @snippet lcm-lcd.cxx Interesting
44 class Lcm1602 : public I2CLcd {
47 * Lcm1602 Constructor, calls libmraa initialisation functions
49 * @param bus i2c bus to use
50 * @param address the slave address the lcd is registered on
52 Lcm1602(int bus, int address);
58 * Write a string to LCD
60 * @param msg The std::string to write to display, note only ascii
62 * @return Result of operation
64 mraa_result_t write(std::string msg);
66 * Set cursor to a coordinate
68 * @param row The row to set cursor to
69 * @param column The column to set cursor to
70 * @return Result of operation
72 mraa_result_t setCursor(int row, int column);
74 * Clear display from characters
76 * @return Result of operatio
78 mraa_result_t clear();
80 * Return to coordinate 0,0
82 * @return Result of operation
87 mraa_result_t send(uint8_t value, int mode);
88 mraa_result_t write4bits(uint8_t value);
89 mraa_result_t expandWrite(uint8_t value);
90 mraa_result_t pulseEnable(uint8_t value);