Nucleo board with Seeed bot and bluetooth shields demo.
Dependencies: BluetoothSerial SeeedShieldBot mbed
This code shows a simple application composed of a Nucleo board, a Seeed Bot and Seeed Bluetooth shieds:
- http://mbed.org/components/Seeed-Studio-Shield-Robot
- http://mbed.org/components/Seeed-Bluetooth-Shield
This picture shows how the three boards are stacked together:
You will need also to use an application on your phone to send Bluetooth commands and to be able to control the Bot shield. We have used the Bluetooth spp tools pro Android application.
Look at this video to have more details about this demo:
main.cpp@3:68fe5b9e069a, 2014-10-16 (annotated)
- Committer:
- bcostm
- Date:
- Thu Oct 16 06:18:14 2014 +0000
- Revision:
- 3:68fe5b9e069a
- Parent:
- 2:7b09d04f029b
- Child:
- 4:5dd60bfc3cdd
Stop the motors when a front sensor has detected something.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bcostm | 0:fa6bc104fe2d | 1 | #include "mbed.h" |
bcostm | 0:fa6bc104fe2d | 2 | #include "BluetoothSerial.h" |
bcostm | 0:fa6bc104fe2d | 3 | #include "SeeedStudioShieldBot.h" |
bcostm | 0:fa6bc104fe2d | 4 | |
bcostm | 0:fa6bc104fe2d | 5 | // The following configuration must be done on the NUCLEO board: |
bcostm | 0:fa6bc104fe2d | 6 | // - Close SB62/SB63 and open SB13/SB14 solder bridges to enable the D0/D1 pins |
bcostm | 0:fa6bc104fe2d | 7 | // - Open SB21 solder bridge to disconnect the LED |
bcostm | 0:fa6bc104fe2d | 8 | |
bcostm | 0:fa6bc104fe2d | 9 | BluetoothSerial bluetooth(D1, D0); // TX, RX |
bcostm | 0:fa6bc104fe2d | 10 | |
bcostm | 0:fa6bc104fe2d | 11 | SeeedStudioShieldBot bot( |
bcostm | 0:fa6bc104fe2d | 12 | D8, D9, D11, // Right motor pins (PwmOut, DigitalOut, DigitalOut) -> Motor 1 |
bcostm | 0:fa6bc104fe2d | 13 | D12, D10, D13, // Left motor pins (PwmOut, DigitalOut, DigitalOut) -> Motor 2 |
bcostm | 3:68fe5b9e069a | 14 | A0, A1, A2, A3, A4 // Sensors pins (all DigitalIn) |
bcostm | 0:fa6bc104fe2d | 15 | ); |
bcostm | 0:fa6bc104fe2d | 16 | |
bcostm | 0:fa6bc104fe2d | 17 | // Enable it for debugging on hyperterminal |
bcostm | 0:fa6bc104fe2d | 18 | #define DEBUG 1 |
bcostm | 0:fa6bc104fe2d | 19 | #if DEBUG == 1 |
bcostm | 0:fa6bc104fe2d | 20 | Serial pc(PC_10, PC_11); |
bcostm | 0:fa6bc104fe2d | 21 | #define PC_DEBUG(args...) pc.printf(args) |
bcostm | 0:fa6bc104fe2d | 22 | #else |
bcostm | 0:fa6bc104fe2d | 23 | #define PC_DEBUG(args...) |
bcostm | 0:fa6bc104fe2d | 24 | #endif |
bcostm | 0:fa6bc104fe2d | 25 | |
bcostm | 0:fa6bc104fe2d | 26 | Ticker tick; |
bcostm | 0:fa6bc104fe2d | 27 | |
bcostm | 3:68fe5b9e069a | 28 | float speed = 1.0; // Used to select the motors speed |
bcostm | 3:68fe5b9e069a | 29 | int stop = 0; // Used to stop the motors when a sensor detects something |
bcostm | 3:68fe5b9e069a | 30 | |
bcostm | 0:fa6bc104fe2d | 31 | void ReadCommand(void) |
bcostm | 0:fa6bc104fe2d | 32 | { |
bcostm | 0:fa6bc104fe2d | 33 | int cmd = 0; |
bcostm | 0:fa6bc104fe2d | 34 | PC_DEBUG(">>> Read command...\n"); |
bcostm | 3:68fe5b9e069a | 35 | |
bcostm | 0:fa6bc104fe2d | 36 | if (bluetooth.readable()) |
bcostm | 0:fa6bc104fe2d | 37 | { |
bcostm | 0:fa6bc104fe2d | 38 | cmd = bluetooth.getc(); |
bcostm | 0:fa6bc104fe2d | 39 | PC_DEBUG(">>> Bluetooth read [%c]\n", cmd); |
bcostm | 3:68fe5b9e069a | 40 | |
bcostm | 3:68fe5b9e069a | 41 | // Ignore the receive command (excepted "Backward") if a sensor has detected something. |
bcostm | 3:68fe5b9e069a | 42 | if ((stop) && (cmd != '2')) return; |
bcostm | 3:68fe5b9e069a | 43 | |
bcostm | 3:68fe5b9e069a | 44 | switch (cmd) |
bcostm | 0:fa6bc104fe2d | 45 | { |
bcostm | 3:68fe5b9e069a | 46 | case '1': // Forward |
bcostm | 3:68fe5b9e069a | 47 | bot.forward(speed); |
bcostm | 3:68fe5b9e069a | 48 | break; |
bcostm | 3:68fe5b9e069a | 49 | case '2': // Backward |
bcostm | 3:68fe5b9e069a | 50 | bot.backward(speed); |
bcostm | 3:68fe5b9e069a | 51 | break; |
bcostm | 3:68fe5b9e069a | 52 | case '3': // Left |
bcostm | 3:68fe5b9e069a | 53 | bot.left(speed); |
bcostm | 3:68fe5b9e069a | 54 | break; |
bcostm | 3:68fe5b9e069a | 55 | case '4': // Right |
bcostm | 3:68fe5b9e069a | 56 | bot.right(speed); |
bcostm | 3:68fe5b9e069a | 57 | break; |
bcostm | 3:68fe5b9e069a | 58 | case '5': // Turn left |
bcostm | 3:68fe5b9e069a | 59 | bot.turn_right(speed); |
bcostm | 3:68fe5b9e069a | 60 | break; |
bcostm | 3:68fe5b9e069a | 61 | case '6': // Turn right |
bcostm | 3:68fe5b9e069a | 62 | bot.turn_left(speed); |
bcostm | 3:68fe5b9e069a | 63 | break; |
bcostm | 3:68fe5b9e069a | 64 | case '7': // Slow |
bcostm | 3:68fe5b9e069a | 65 | speed = 0.4; |
bcostm | 3:68fe5b9e069a | 66 | break; |
bcostm | 3:68fe5b9e069a | 67 | case '8': // Fast |
bcostm | 3:68fe5b9e069a | 68 | speed = 1.0; |
bcostm | 3:68fe5b9e069a | 69 | break; |
bcostm | 3:68fe5b9e069a | 70 | default: // Stop |
bcostm | 3:68fe5b9e069a | 71 | bot.stopAll(); |
bcostm | 3:68fe5b9e069a | 72 | break; |
bcostm | 0:fa6bc104fe2d | 73 | } |
bcostm | 0:fa6bc104fe2d | 74 | } |
bcostm | 0:fa6bc104fe2d | 75 | } |
bcostm | 0:fa6bc104fe2d | 76 | |
bcostm | 0:fa6bc104fe2d | 77 | int main() |
bcostm | 0:fa6bc104fe2d | 78 | { |
bcostm | 0:fa6bc104fe2d | 79 | PC_DEBUG("\n\nSeeed Bluetooth shield test started.\n"); |
bcostm | 0:fa6bc104fe2d | 80 | |
bcostm | 0:fa6bc104fe2d | 81 | // Enable motors |
bcostm | 0:fa6bc104fe2d | 82 | bot.enable_right_motor(); |
bcostm | 0:fa6bc104fe2d | 83 | bot.enable_left_motor(); |
bcostm | 0:fa6bc104fe2d | 84 | |
bcostm | 0:fa6bc104fe2d | 85 | PC_DEBUG(">>> Bluetooth setup..."); |
bcostm | 0:fa6bc104fe2d | 86 | bluetooth.setup(); |
bcostm | 0:fa6bc104fe2d | 87 | PC_DEBUG("done\n"); |
bcostm | 0:fa6bc104fe2d | 88 | |
bcostm | 0:fa6bc104fe2d | 89 | PC_DEBUG(">>> Bluetooth in slave mode..."); |
bcostm | 0:fa6bc104fe2d | 90 | bluetooth.slave("btslave8seeed"); // default PIN code: 0000 |
bcostm | 0:fa6bc104fe2d | 91 | PC_DEBUG("done\n"); |
bcostm | 0:fa6bc104fe2d | 92 | |
bcostm | 0:fa6bc104fe2d | 93 | wait(2); |
bcostm | 0:fa6bc104fe2d | 94 | |
bcostm | 0:fa6bc104fe2d | 95 | PC_DEBUG(">>> Bluetooth connect..."); |
bcostm | 0:fa6bc104fe2d | 96 | bluetooth.connect(); |
bcostm | 0:fa6bc104fe2d | 97 | PC_DEBUG("done\n"); |
bcostm | 0:fa6bc104fe2d | 98 | |
bcostm | 3:68fe5b9e069a | 99 | tick.attach(ReadCommand, 0.3); // Every 300 ms read Bluetooth command |
bcostm | 3:68fe5b9e069a | 100 | |
bcostm | 3:68fe5b9e069a | 101 | // Check if motors are alive |
bcostm | 3:68fe5b9e069a | 102 | bot.left(speed); |
bcostm | 3:68fe5b9e069a | 103 | wait(0.2); |
bcostm | 3:68fe5b9e069a | 104 | bot.right(speed); |
bcostm | 3:68fe5b9e069a | 105 | wait(0.2); |
bcostm | 3:68fe5b9e069a | 106 | bot.stopAll(); |
bcostm | 0:fa6bc104fe2d | 107 | |
bcostm | 0:fa6bc104fe2d | 108 | while (1) { |
bcostm | 3:68fe5b9e069a | 109 | // Stop the motors if a sensor has detected something. |
bcostm | 3:68fe5b9e069a | 110 | if (!bot.rightSensor || !bot.inRightSensor || !bot.centreSensor || !bot.inLeftSensor || !bot.leftSensor) |
bcostm | 3:68fe5b9e069a | 111 | { |
bcostm | 3:68fe5b9e069a | 112 | if (!stop) bot.stopAll(); |
bcostm | 3:68fe5b9e069a | 113 | stop = 1; |
bcostm | 3:68fe5b9e069a | 114 | } |
bcostm | 3:68fe5b9e069a | 115 | else |
bcostm | 3:68fe5b9e069a | 116 | { |
bcostm | 3:68fe5b9e069a | 117 | stop = 0; |
bcostm | 3:68fe5b9e069a | 118 | } |
bcostm | 3:68fe5b9e069a | 119 | } |
bcostm | 0:fa6bc104fe2d | 120 | } |