Tushar Sachdeva / FRDM_K64F_LCD

A simple 128x32 graphical LCD program to quickstart with LCD on ARM mbed IoT Starter Kit. This requires mbed Applciation Shield with FRDM-K64F platform.

Dependencies:   C12832

mbed/AnalogIn.h@1:eb68c94a8ee5, 2015-04-12 (annotated)

Committer:
tushki7
Date:
Sun Apr 12 15:45:52 2015 +0000
Revision:
1:eb68c94a8ee5
Parent:
0:60d829a0353a 
A simple 128x32 LCD program with ARM mbed IoT Starter Kit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tushki7 0:60d829a0353a 1 /* mbed Microcontroller Library
tushki7 0:60d829a0353a 2 * Copyright (c) 2006-2013 ARM Limited
tushki7 0:60d829a0353a 3 *
tushki7 0:60d829a0353a 4 * Licensed under the Apache License, Version 2.0 (the "License");
tushki7 0:60d829a0353a 5 * you may not use this file except in compliance with the License.
tushki7 0:60d829a0353a 6 * You may obtain a copy of the License at
tushki7 0:60d829a0353a 7 *
tushki7 0:60d829a0353a 8 * http://www.apache.org/licenses/LICENSE-2.0
tushki7 0:60d829a0353a 9 *
tushki7 0:60d829a0353a 10 * Unless required by applicable law or agreed to in writing, software
tushki7 0:60d829a0353a 11 * distributed under the License is distributed on an "AS IS" BASIS,
tushki7 0:60d829a0353a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tushki7 0:60d829a0353a 13 * See the License for the specific language governing permissions and
tushki7 0:60d829a0353a 14 * limitations under the License.
tushki7 0:60d829a0353a 15 */
tushki7 0:60d829a0353a 16 #ifndef MBED_ANALOGIN_H
tushki7 0:60d829a0353a 17 #define MBED_ANALOGIN_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "platform.h"
tushki7 0:60d829a0353a 20
tushki7 0:60d829a0353a 21 #if DEVICE_ANALOGIN
tushki7 0:60d829a0353a 22
tushki7 0:60d829a0353a 23 #include "analogin_api.h"
tushki7 0:60d829a0353a 24
tushki7 0:60d829a0353a 25 namespace mbed {
tushki7 0:60d829a0353a 26
tushki7 0:60d829a0353a 27 /** An analog input, used for reading the voltage on a pin
tushki7 0:60d829a0353a 28 *
tushki7 0:60d829a0353a 29 * Example:
tushki7 0:60d829a0353a 30 * @code
tushki7 0:60d829a0353a 31 * // Print messages when the AnalogIn is greater than 50%
tushki7 0:60d829a0353a 32 *
tushki7 0:60d829a0353a 33 * #include "mbed.h"
tushki7 0:60d829a0353a 34 *
tushki7 0:60d829a0353a 35 * AnalogIn temperature(p20);
tushki7 0:60d829a0353a 36 *
tushki7 0:60d829a0353a 37 * int main() {
tushki7 0:60d829a0353a 38 * while(1) {
tushki7 0:60d829a0353a 39 * if(temperature > 0.5) {
tushki7 0:60d829a0353a 40 * printf("Too hot! (%f)", temperature.read());
tushki7 0:60d829a0353a 41 * }
tushki7 0:60d829a0353a 42 * }
tushki7 0:60d829a0353a 43 * }
tushki7 0:60d829a0353a 44 * @endcode
tushki7 0:60d829a0353a 45 */
tushki7 0:60d829a0353a 46 class AnalogIn {
tushki7 0:60d829a0353a 47
tushki7 0:60d829a0353a 48 public:
tushki7 0:60d829a0353a 49
tushki7 0:60d829a0353a 50 /** Create an AnalogIn, connected to the specified pin
tushki7 0:60d829a0353a 51 *
tushki7 0:60d829a0353a 52 * @param pin AnalogIn pin to connect to
tushki7 0:60d829a0353a 53 * @param name (optional) A string to identify the object
tushki7 0:60d829a0353a 54 */
tushki7 0:60d829a0353a 55 AnalogIn(PinName pin) {
tushki7 0:60d829a0353a 56 analogin_init(&_adc, pin);
tushki7 0:60d829a0353a 57 }
tushki7 0:60d829a0353a 58
tushki7 0:60d829a0353a 59 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
tushki7 0:60d829a0353a 60 *
tushki7 0:60d829a0353a 61 * @returns A floating-point value representing the current input voltage, measured as a percentage
tushki7 0:60d829a0353a 62 */
tushki7 0:60d829a0353a 63 float read() {
tushki7 0:60d829a0353a 64 return analogin_read(&_adc);
tushki7 0:60d829a0353a 65 }
tushki7 0:60d829a0353a 66
tushki7 0:60d829a0353a 67 /** Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
tushki7 0:60d829a0353a 68 *
tushki7 0:60d829a0353a 69 * @returns
tushki7 0:60d829a0353a 70 * 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
tushki7 0:60d829a0353a 71 */
tushki7 0:60d829a0353a 72 unsigned short read_u16() {
tushki7 0:60d829a0353a 73 return analogin_read_u16(&_adc);
tushki7 0:60d829a0353a 74 }
tushki7 0:60d829a0353a 75
tushki7 0:60d829a0353a 76 #ifdef MBED_OPERATORS
tushki7 0:60d829a0353a 77 /** An operator shorthand for read()
tushki7 0:60d829a0353a 78 *
tushki7 0:60d829a0353a 79 * The float() operator can be used as a shorthand for read() to simplify common code sequences
tushki7 0:60d829a0353a 80 *
tushki7 0:60d829a0353a 81 * Example:
tushki7 0:60d829a0353a 82 * @code
tushki7 0:60d829a0353a 83 * float x = volume.read();
tushki7 0:60d829a0353a 84 * float x = volume;
tushki7 0:60d829a0353a 85 *
tushki7 0:60d829a0353a 86 * if(volume.read() > 0.25) { ... }
tushki7 0:60d829a0353a 87 * if(volume > 0.25) { ... }
tushki7 0:60d829a0353a 88 * @endcode
tushki7 0:60d829a0353a 89 */
tushki7 0:60d829a0353a 90 operator float() {
tushki7 0:60d829a0353a 91 return read();
tushki7 0:60d829a0353a 92 }
tushki7 0:60d829a0353a 93 #endif
tushki7 0:60d829a0353a 94
tushki7 0:60d829a0353a 95 protected:
tushki7 0:60d829a0353a 96 analogin_t _adc;
tushki7 0:60d829a0353a 97 };
tushki7 0:60d829a0353a 98
tushki7 0:60d829a0353a 99 } // namespace mbed
tushki7 0:60d829a0353a 100
tushki7 0:60d829a0353a 101 #endif
tushki7 0:60d829a0353a 102
tushki7 0:60d829a0353a 103 #endif