David Estévez / Mbed 2 deprecated ABBlind

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   ABBlind OneButton USBDevice mbed

Dependents:   ABBlind

main.cpp@1:60fb226f2402, 2016-09-21 (annotated)

Committer:
def
Date:
Wed Sep 21 23:44:05 2016 +0000
Revision:
1:60fb226f2402
Parent:
0:722dcbb1475a
Child:
2:cc3d60dcfbdf
Release 1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
def 0:722dcbb1475a 1 /**********************************************************
def 1:60fb226f2402 2 * ABBlind
def 0:722dcbb1475a 3 **********************************************************
def 0:722dcbb1475a 4 *
def 1:60fb226f2402 5 * ABBlind Firmware
def 1:60fb226f2402 6 *
def 1:60fb226f2402 7 * How to use:
def 1:60fb226f2402 8 * - Long press: toggles mode:
def 1:60fb226f2402 9 * * Setup mode: red light means channel A in the
def 1:60fb226f2402 10 * output, blue light means channel B in the
def 1:60fb226f2402 11 * output, short press toggles channel.
def 1:60fb226f2402 12 * * Blind mode: each press makes a random channel
def 1:60fb226f2402 13 * to be at the output, after 3 presses it
def 1:60fb226f2402 14 * shows the heard sequence of channels.
def 0:722dcbb1475a 15 *
def 0:722dcbb1475a 16 **********************************************************
def 0:722dcbb1475a 17 * Author: David Estévez Fernández (DEF)
def 0:722dcbb1475a 18 * License: GPLv3
def 0:722dcbb1475a 19 *
def 0:722dcbb1475a 20 * A UC3Music project! Check out our website:
def 0:722dcbb1475a 21 * http://uc3music.github.io/
def 0:722dcbb1475a 22 */
def 1:60fb226f2402 23
def 0:722dcbb1475a 24 #include "mbed.h"
def 1:60fb226f2402 25 #include "OneButton.h"
def 0:722dcbb1475a 26
def 1:60fb226f2402 27 //#define DEBUG
def 1:60fb226f2402 28 #ifdef DEBUG
def 1:60fb226f2402 29 #include "USBSerial.h"
def 1:60fb226f2402 30 USBSerial pc;//--Debug
def 1:60fb226f2402 31 #endif
def 0:722dcbb1475a 32
def 0:722dcbb1475a 33 //-- Peripherals definition
def 0:722dcbb1475a 34 DigitalOut LED_01[] = {P1_24, P1_17};
def 0:722dcbb1475a 35 DigitalOut LED_02[] = {P1_27, P1_25};
def 0:722dcbb1475a 36 DigitalOut LED_03[] = {P0_9, P0_2};
def 0:722dcbb1475a 37 DigitalOut AUDIO_SWITCH(P0_14);
def 1:60fb226f2402 38 OneButton PUSH_BUTTON(P0_17, 0); //-- 0 means pullup resistor
def 1:60fb226f2402 39 AnalogIn noise(P0_11);
def 0:722dcbb1475a 40
def 0:722dcbb1475a 41 //-- Other constant definitions
def 0:722dcbb1475a 42 static const uint8_t COLOR1 = 0;
def 0:722dcbb1475a 43 static const uint8_t COLOR2 = 1;
def 1:60fb226f2402 44 enum State { SetupA, SetupB, Rand1, Rand2, Rand3, RandShow};
def 0:722dcbb1475a 45
def 0:722dcbb1475a 46
def 0:722dcbb1475a 47 //-- Other definitions
def 1:60fb226f2402 48 volatile State state = SetupA;
def 1:60fb226f2402 49 volatile State next_state = state;
def 1:60fb226f2402 50 volatile uint8_t state_changed = 1;
def 1:60fb226f2402 51 volatile uint8_t mode_changed = 1;
def 1:60fb226f2402 52 uint8_t output_log[] = {0,0,0};
def 0:722dcbb1475a 53
def 0:722dcbb1475a 54 void start_sequence(uint16_t ms = 200)
def 0:722dcbb1475a 55 {
def 0:722dcbb1475a 56 DigitalOut* leds[] = {&LED_01[0], &LED_02[0],
def 0:722dcbb1475a 57 &LED_03[0], &LED_01[1],
def 0:722dcbb1475a 58 &LED_02[1], &LED_03[1]};
def 0:722dcbb1475a 59
def 0:722dcbb1475a 60 for (uint8_t i = 0; i < 6; i++)
def 0:722dcbb1475a 61 {
def 0:722dcbb1475a 62 for (uint8_t j = 0; j < 6; j++)
def 0:722dcbb1475a 63 {
def 0:722dcbb1475a 64 i == j ? *leds[j] = 1 : *leds[j] = 0;
def 0:722dcbb1475a 65 }
def 0:722dcbb1475a 66 wait_ms(ms);
def 0:722dcbb1475a 67 }
def 0:722dcbb1475a 68 }
def 0:722dcbb1475a 69
def 1:60fb226f2402 70 uint8_t random()
def 1:60fb226f2402 71 {
def 1:60fb226f2402 72 #ifdef DEBUG
def 1:60fb226f2402 73 pc.printf("%d\n", noise.read_u16()==0x0);
def 1:60fb226f2402 74 #endif
def 1:60fb226f2402 75 return noise.read_u16()==0x0;
def 1:60fb226f2402 76 }
def 1:60fb226f2402 77
def 0:722dcbb1475a 78 void button_pressed()
def 0:722dcbb1475a 79 {
def 1:60fb226f2402 80 if (!mode_changed)
def 1:60fb226f2402 81 {
def 1:60fb226f2402 82 if (state==SetupA)
def 1:60fb226f2402 83 next_state = SetupB;
def 1:60fb226f2402 84 else if (state==SetupB)
def 1:60fb226f2402 85 next_state = SetupA;
def 1:60fb226f2402 86 else if (state==Rand1)
def 1:60fb226f2402 87 next_state = Rand2;
def 1:60fb226f2402 88 else if (state==Rand2)
def 1:60fb226f2402 89 next_state = Rand3;
def 1:60fb226f2402 90 else if (state==Rand3)
def 1:60fb226f2402 91 next_state = RandShow;
def 1:60fb226f2402 92 else if (state==RandShow)
def 1:60fb226f2402 93 next_state = Rand1;
def 1:60fb226f2402 94 state_changed = 1;
def 1:60fb226f2402 95 }
def 1:60fb226f2402 96 }
def 1:60fb226f2402 97
def 1:60fb226f2402 98 void long_press()
def 1:60fb226f2402 99 {
def 1:60fb226f2402 100 if (state==SetupA || state==SetupB)
def 1:60fb226f2402 101 {
def 1:60fb226f2402 102 //-- Go to Random mode
def 1:60fb226f2402 103 next_state = Rand1;
def 1:60fb226f2402 104 }
def 1:60fb226f2402 105 else
def 1:60fb226f2402 106 {
def 1:60fb226f2402 107 //-- Go to Setup mode
def 1:60fb226f2402 108 next_state = SetupA;
def 1:60fb226f2402 109 }
def 1:60fb226f2402 110 state_changed = 1;
def 1:60fb226f2402 111 mode_changed = 1;
def 0:722dcbb1475a 112 }
def 0:722dcbb1475a 113
def 0:722dcbb1475a 114
def 0:722dcbb1475a 115 int main() {
def 0:722dcbb1475a 116
def 0:722dcbb1475a 117 //-- Setup button
def 1:60fb226f2402 118 PUSH_BUTTON.attachClick(&button_pressed);
def 1:60fb226f2402 119 PUSH_BUTTON.attachDuringLongPress(&long_press);
def 0:722dcbb1475a 120
def 0:722dcbb1475a 121 //- Setup audio switch
def 0:722dcbb1475a 122 AUDIO_SWITCH = 0;
def 0:722dcbb1475a 123
def 0:722dcbb1475a 124 start_sequence();
def 0:722dcbb1475a 125 start_sequence();
def 0:722dcbb1475a 126
def 0:722dcbb1475a 127 while(1) {
def 1:60fb226f2402 128 if (state_changed)
def 1:60fb226f2402 129 {
def 1:60fb226f2402 130 state = next_state;
def 1:60fb226f2402 131
def 1:60fb226f2402 132 if (state == SetupA)
def 1:60fb226f2402 133 {
def 1:60fb226f2402 134 LED_01[COLOR1] = 1;
def 1:60fb226f2402 135 LED_02[COLOR1] = 1;
def 1:60fb226f2402 136 LED_03[COLOR1] = 1;
def 1:60fb226f2402 137 LED_01[COLOR2] = 0;
def 1:60fb226f2402 138 LED_02[COLOR2] = 0;
def 1:60fb226f2402 139 LED_03[COLOR2] = 0;
def 1:60fb226f2402 140 AUDIO_SWITCH = 0;
def 1:60fb226f2402 141 }
def 1:60fb226f2402 142 else if (state == SetupB)
def 1:60fb226f2402 143 {
def 1:60fb226f2402 144 LED_01[COLOR1] = 0;
def 1:60fb226f2402 145 LED_02[COLOR1] = 0;
def 1:60fb226f2402 146 LED_03[COLOR1] = 0;
def 1:60fb226f2402 147 LED_01[COLOR2] = 1;
def 1:60fb226f2402 148 LED_02[COLOR2] = 1;
def 1:60fb226f2402 149 LED_03[COLOR2] = 1;
def 1:60fb226f2402 150 AUDIO_SWITCH = 1;
def 1:60fb226f2402 151 }
def 1:60fb226f2402 152 else if (state == Rand1)
def 1:60fb226f2402 153 {
def 1:60fb226f2402 154 LED_01[COLOR1] = 1;
def 1:60fb226f2402 155 LED_02[COLOR1] = 0;
def 1:60fb226f2402 156 LED_03[COLOR1] = 0;
def 1:60fb226f2402 157 LED_01[COLOR2] = 1;
def 1:60fb226f2402 158 LED_02[COLOR2] = 0;
def 1:60fb226f2402 159 LED_03[COLOR2] = 0;
def 1:60fb226f2402 160
def 1:60fb226f2402 161 output_log[0] = random();
def 1:60fb226f2402 162 AUDIO_SWITCH = output_log[0];
def 1:60fb226f2402 163 }
def 1:60fb226f2402 164 else if (state == Rand2)
def 1:60fb226f2402 165 {
def 1:60fb226f2402 166 LED_01[COLOR1] = 1;
def 1:60fb226f2402 167 LED_02[COLOR1] = 1;
def 1:60fb226f2402 168 LED_03[COLOR1] = 0;
def 1:60fb226f2402 169 LED_01[COLOR2] = 1;
def 1:60fb226f2402 170 LED_02[COLOR2] = 1;
def 1:60fb226f2402 171 LED_03[COLOR2] = 0;
def 1:60fb226f2402 172
def 1:60fb226f2402 173 output_log[1] = random();
def 1:60fb226f2402 174 AUDIO_SWITCH = output_log[1];
def 1:60fb226f2402 175 }
def 1:60fb226f2402 176 else if (state == Rand3)
def 1:60fb226f2402 177 {
def 1:60fb226f2402 178 LED_01[COLOR1] = 1;
def 1:60fb226f2402 179 LED_02[COLOR1] = 1;
def 1:60fb226f2402 180 LED_03[COLOR1] = 1;
def 1:60fb226f2402 181 LED_01[COLOR2] = 1;
def 1:60fb226f2402 182 LED_02[COLOR2] = 1;
def 1:60fb226f2402 183 LED_03[COLOR2] = 1;
def 1:60fb226f2402 184
def 1:60fb226f2402 185 //-- Ensure each channel is played at least once
def 1:60fb226f2402 186 if (output_log[0]==output_log[1])
def 1:60fb226f2402 187 ouput_log[2]==!output_log[0];
def 1:60fb226f2402 188 else
def 1:60fb226f2402 189 output_log[2] = random();
def 1:60fb226f2402 190 AUDIO_SWITCH = output_log[2];
def 1:60fb226f2402 191 }
def 1:60fb226f2402 192 else if (state == RandShow)
def 1:60fb226f2402 193 {
def 1:60fb226f2402 194 if (output_log[0])
def 1:60fb226f2402 195 {
def 1:60fb226f2402 196 LED_01[COLOR1] = 1;
def 1:60fb226f2402 197 LED_01[COLOR2] = 0;
def 1:60fb226f2402 198 }
def 1:60fb226f2402 199 else
def 1:60fb226f2402 200 {
def 1:60fb226f2402 201 LED_01[COLOR1] = 0;
def 1:60fb226f2402 202 LED_01[COLOR2] = 1;
def 1:60fb226f2402 203 }
def 1:60fb226f2402 204
def 1:60fb226f2402 205 if (output_log[1])
def 1:60fb226f2402 206 {
def 1:60fb226f2402 207 LED_02[COLOR1] = 1;
def 1:60fb226f2402 208 LED_02[COLOR2] = 0;
def 1:60fb226f2402 209 }
def 1:60fb226f2402 210 else
def 1:60fb226f2402 211 {
def 1:60fb226f2402 212 LED_02[COLOR1] = 0;
def 1:60fb226f2402 213 LED_02[COLOR2] = 1;
def 1:60fb226f2402 214 }
def 1:60fb226f2402 215
def 1:60fb226f2402 216 if (output_log[2])
def 1:60fb226f2402 217 {
def 1:60fb226f2402 218 LED_03[COLOR1] = 1;
def 1:60fb226f2402 219 LED_03[COLOR2] = 0;
def 1:60fb226f2402 220 }
def 1:60fb226f2402 221 else
def 1:60fb226f2402 222 {
def 1:60fb226f2402 223 LED_03[COLOR1] = 0;
def 1:60fb226f2402 224 LED_03[COLOR2] = 1;
def 1:60fb226f2402 225 }
def 1:60fb226f2402 226
def 1:60fb226f2402 227 AUDIO_SWITCH = 0;
def 1:60fb226f2402 228 }
def 1:60fb226f2402 229 state_changed = 0;
def 1:60fb226f2402 230 mode_changed = 0;
def 1:60fb226f2402 231 }
def 0:722dcbb1475a 232
def 1:60fb226f2402 233 PUSH_BUTTON.tick();
def 0:722dcbb1475a 234 }
def 0:722dcbb1475a 235 }