example micro:bit pedometer
main.cpp@1:a2ca920d8bb1, 2018-04-27 (annotated)
- Committer:
- giobauermeister
- Date:
- Fri Apr 27 13:07:36 2018 +0000
- Revision:
- 1:a2ca920d8bb1
- Parent:
- 0:01ca25814675
example micro:bit pedometer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
giobauermeister | 0:01ca25814675 | 1 | #include "MicroBit.h" |
giobauermeister | 0:01ca25814675 | 2 | #include "MicroBitUARTService.h" |
giobauermeister | 0:01ca25814675 | 3 | |
giobauermeister | 0:01ca25814675 | 4 | MicroBit uBit; |
giobauermeister | 0:01ca25814675 | 5 | MicroBitUARTService *uart; |
giobauermeister | 0:01ca25814675 | 6 | |
giobauermeister | 0:01ca25814675 | 7 | uint16_t step_counter = 0; |
giobauermeister | 0:01ca25814675 | 8 | bool in_range = false; |
giobauermeister | 0:01ca25814675 | 9 | char stepsString[50]; |
giobauermeister | 0:01ca25814675 | 10 | |
giobauermeister | 0:01ca25814675 | 11 | int connected = 0; |
giobauermeister | 0:01ca25814675 | 12 | |
giobauermeister | 0:01ca25814675 | 13 | MicroBitImage img("0 0 0 0 1\n0 0 0 0 1\n0 0 0 0 1\n0 0 0 0 1\n0 0 0 0 1\n"); |
giobauermeister | 0:01ca25814675 | 14 | |
giobauermeister | 0:01ca25814675 | 15 | // |
giobauermeister | 0:01ca25814675 | 16 | // Scales the given value that is in the -1024 to 1024 range |
giobauermeister | 0:01ca25814675 | 17 | // int a value between 0 and 4. |
giobauermeister | 0:01ca25814675 | 18 | // |
giobauermeister | 0:01ca25814675 | 19 | int pixel_from_g(int value) |
giobauermeister | 0:01ca25814675 | 20 | { |
giobauermeister | 0:01ca25814675 | 21 | int x = 0; |
giobauermeister | 0:01ca25814675 | 22 | |
giobauermeister | 0:01ca25814675 | 23 | if (value > -750) |
giobauermeister | 0:01ca25814675 | 24 | x++; |
giobauermeister | 0:01ca25814675 | 25 | if (value > -250) |
giobauermeister | 0:01ca25814675 | 26 | x++; |
giobauermeister | 0:01ca25814675 | 27 | if (value > 250) |
giobauermeister | 0:01ca25814675 | 28 | x++; |
giobauermeister | 0:01ca25814675 | 29 | if (value > 750) |
giobauermeister | 0:01ca25814675 | 30 | x++; |
giobauermeister | 0:01ca25814675 | 31 | |
giobauermeister | 0:01ca25814675 | 32 | return x; |
giobauermeister | 0:01ca25814675 | 33 | } |
giobauermeister | 0:01ca25814675 | 34 | |
giobauermeister | 0:01ca25814675 | 35 | void onConnected(MicroBitEvent e) |
giobauermeister | 0:01ca25814675 | 36 | { |
giobauermeister | 0:01ca25814675 | 37 | //uBit.display.scroll("C"); |
giobauermeister | 0:01ca25814675 | 38 | |
giobauermeister | 0:01ca25814675 | 39 | connected = 1; |
giobauermeister | 0:01ca25814675 | 40 | |
giobauermeister | 0:01ca25814675 | 41 | while (connected == 1) { |
giobauermeister | 0:01ca25814675 | 42 | int x = pixel_from_g(uBit.accelerometer.getX()); |
giobauermeister | 0:01ca25814675 | 43 | int y = pixel_from_g(uBit.accelerometer.getY()); |
giobauermeister | 0:01ca25814675 | 44 | |
giobauermeister | 0:01ca25814675 | 45 | uBit.display.image.clear(); |
giobauermeister | 0:01ca25814675 | 46 | uBit.display.image.setPixelValue(x, y, 255); |
giobauermeister | 0:01ca25814675 | 47 | //uBit.display.image.setPixelValue(1, 0, 255); |
giobauermeister | 0:01ca25814675 | 48 | if(y < 4) |
giobauermeister | 0:01ca25814675 | 49 | { |
giobauermeister | 0:01ca25814675 | 50 | in_range = true; |
giobauermeister | 0:01ca25814675 | 51 | while(in_range) |
giobauermeister | 0:01ca25814675 | 52 | { |
giobauermeister | 0:01ca25814675 | 53 | y = pixel_from_g(uBit.accelerometer.getY()); |
giobauermeister | 0:01ca25814675 | 54 | if(y == 4) |
giobauermeister | 0:01ca25814675 | 55 | { |
giobauermeister | 0:01ca25814675 | 56 | in_range = false; |
giobauermeister | 0:01ca25814675 | 57 | step_counter ++; |
giobauermeister | 0:01ca25814675 | 58 | } |
giobauermeister | 0:01ca25814675 | 59 | } |
giobauermeister | 0:01ca25814675 | 60 | sprintf(stepsString, "%d", step_counter); |
giobauermeister | 0:01ca25814675 | 61 | uart->send(stepsString); |
giobauermeister | 0:01ca25814675 | 62 | |
giobauermeister | 0:01ca25814675 | 63 | uBit.serial.send("steps: "); |
giobauermeister | 0:01ca25814675 | 64 | uBit.serial.send(step_counter); |
giobauermeister | 0:01ca25814675 | 65 | uBit.serial.send("\r\n"); |
giobauermeister | 0:01ca25814675 | 66 | |
giobauermeister | 0:01ca25814675 | 67 | } |
giobauermeister | 0:01ca25814675 | 68 | uBit.sleep(100); |
giobauermeister | 0:01ca25814675 | 69 | } |
giobauermeister | 0:01ca25814675 | 70 | |
giobauermeister | 0:01ca25814675 | 71 | } |
giobauermeister | 0:01ca25814675 | 72 | void onDisconnected(MicroBitEvent e) |
giobauermeister | 0:01ca25814675 | 73 | { |
giobauermeister | 0:01ca25814675 | 74 | //uBit.display.scroll("D"); |
giobauermeister | 0:01ca25814675 | 75 | connected = 0; |
giobauermeister | 0:01ca25814675 | 76 | step_counter = 0; |
giobauermeister | 0:01ca25814675 | 77 | |
giobauermeister | 0:01ca25814675 | 78 | |
giobauermeister | 0:01ca25814675 | 79 | |
giobauermeister | 0:01ca25814675 | 80 | while(connected == 0) |
giobauermeister | 0:01ca25814675 | 81 | { |
giobauermeister | 0:01ca25814675 | 82 | uBit.display.scroll(img, 50, -1); |
giobauermeister | 0:01ca25814675 | 83 | uBit.display.scroll(img, 50, +1); |
giobauermeister | 0:01ca25814675 | 84 | } |
giobauermeister | 0:01ca25814675 | 85 | } |
giobauermeister | 0:01ca25814675 | 86 | |
giobauermeister | 0:01ca25814675 | 87 | |
giobauermeister | 0:01ca25814675 | 88 | |
giobauermeister | 0:01ca25814675 | 89 | int main() |
giobauermeister | 0:01ca25814675 | 90 | { |
giobauermeister | 0:01ca25814675 | 91 | // Initialise the micro:bit runtime. |
giobauermeister | 0:01ca25814675 | 92 | uBit.init(); |
giobauermeister | 0:01ca25814675 | 93 | uBit.serial.baud(115200); |
giobauermeister | 0:01ca25814675 | 94 | uBit.serial.send("Hello World\n"); |
giobauermeister | 0:01ca25814675 | 95 | |
giobauermeister | 0:01ca25814675 | 96 | uBit.messageBus.listen(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_CONNECTED, onConnected); |
giobauermeister | 0:01ca25814675 | 97 | uBit.messageBus.listen(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_DISCONNECTED, onDisconnected); |
giobauermeister | 0:01ca25814675 | 98 | |
giobauermeister | 0:01ca25814675 | 99 | uart = new MicroBitUARTService(*uBit.ble, 32, 32); |
giobauermeister | 0:01ca25814675 | 100 | |
giobauermeister | 0:01ca25814675 | 101 | //uBit.display.scroll("Ready"); |
giobauermeister | 0:01ca25814675 | 102 | |
giobauermeister | 0:01ca25814675 | 103 | |
giobauermeister | 0:01ca25814675 | 104 | //MicroBitImage i(heart_w,heart_h,heart); |
giobauermeister | 0:01ca25814675 | 105 | //uBit.display.animate(i,10000,5); |
giobauermeister | 0:01ca25814675 | 106 | |
giobauermeister | 0:01ca25814675 | 107 | while(connected == 0) |
giobauermeister | 0:01ca25814675 | 108 | { |
giobauermeister | 0:01ca25814675 | 109 | uBit.display.scroll(img, 50, -1); |
giobauermeister | 0:01ca25814675 | 110 | uBit.display.scroll(img, 50, +1); |
giobauermeister | 0:01ca25814675 | 111 | } |
giobauermeister | 0:01ca25814675 | 112 | |
giobauermeister | 0:01ca25814675 | 113 | release_fiber(); |
giobauermeister | 0:01ca25814675 | 114 | |
giobauermeister | 0:01ca25814675 | 115 | // |
giobauermeister | 0:01ca25814675 | 116 | // Periodically read the accelerometer x and y values, and plot a |
giobauermeister | 0:01ca25814675 | 117 | // scaled version of this ont the display. |
giobauermeister | 0:01ca25814675 | 118 | // |
giobauermeister | 0:01ca25814675 | 119 | //while(1) |
giobauermeister | 0:01ca25814675 | 120 | // { |
giobauermeister | 0:01ca25814675 | 121 | // int x = pixel_from_g(uBit.accelerometer.getX()); |
giobauermeister | 0:01ca25814675 | 122 | // int y = pixel_from_g(uBit.accelerometer.getY()); |
giobauermeister | 0:01ca25814675 | 123 | // |
giobauermeister | 0:01ca25814675 | 124 | // uBit.display.image.clear(); |
giobauermeister | 0:01ca25814675 | 125 | // uBit.display.image.setPixelValue(x, y, 255); |
giobauermeister | 0:01ca25814675 | 126 | // //uBit.display.image.setPixelValue(1, 0, 255); |
giobauermeister | 0:01ca25814675 | 127 | // if(y < 4) |
giobauermeister | 0:01ca25814675 | 128 | // { |
giobauermeister | 0:01ca25814675 | 129 | // in_range = true; |
giobauermeister | 0:01ca25814675 | 130 | // while(in_range) |
giobauermeister | 0:01ca25814675 | 131 | // { |
giobauermeister | 0:01ca25814675 | 132 | // y = pixel_from_g(uBit.accelerometer.getY()); |
giobauermeister | 0:01ca25814675 | 133 | // if(y == 4) |
giobauermeister | 0:01ca25814675 | 134 | // { |
giobauermeister | 0:01ca25814675 | 135 | // in_range = false; |
giobauermeister | 0:01ca25814675 | 136 | // step_counter ++; |
giobauermeister | 0:01ca25814675 | 137 | // } |
giobauermeister | 0:01ca25814675 | 138 | // } |
giobauermeister | 0:01ca25814675 | 139 | // //y = pixel_from_g(uBit.accelerometer.getY()); |
giobauermeister | 0:01ca25814675 | 140 | // //if(y == 4) |
giobauermeister | 0:01ca25814675 | 141 | // uBit.serial.send("steps: "); |
giobauermeister | 0:01ca25814675 | 142 | // uBit.serial.send(step_counter); |
giobauermeister | 0:01ca25814675 | 143 | // uBit.serial.send("\r\n"); |
giobauermeister | 0:01ca25814675 | 144 | // |
giobauermeister | 0:01ca25814675 | 145 | // } |
giobauermeister | 0:01ca25814675 | 146 | // |
giobauermeister | 0:01ca25814675 | 147 | // uBit.sleep(100); |
giobauermeister | 0:01ca25814675 | 148 | // } |
giobauermeister | 0:01ca25814675 | 149 | } |