Roy Collins / Mbed OS mq2_midtermproject

Dependencies:   MQ2

Files at this revision

API Documentation at this revision

Comitter:
azazeal88
Date:
Thu Oct 05 11:55:21 2017 +0000
Child:
1:e589b168e253
Commit message:
first commit

Changed in this revision

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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Thu Oct 05 11:55:21 2017 +0000
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+.build
+.mbed
+projectfiles
+*.py*
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MQ2.lib	Thu Oct 05 11:55:21 2017 +0000
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+http://os.mbed.com/users/azazeal88/code/MQ2/#a5033edf6975
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
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+# Getting started with Blinky on mbed OS
+
+This guide reviews the steps required to get Blinky working on an mbed OS platform.
+
+Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+
+## Import the example application
+
+From the command-line, import the example:
+
+```
+mbed import mbed-os-example-blinky
+cd mbed-os-example-blinky
+```
+
+### Now compile
+
+Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
+
+```
+mbed compile -m K64F -t ARM
+```
+
+Your PC may take a few minutes to compile your code. At the end, you see the following result:
+
+```
+[snip]
++----------------------------+-------+-------+------+
+| Module                     | .text | .data | .bss |
++----------------------------+-------+-------+------+
+| Misc                       | 13939 |    24 | 1372 |
+| core/hal                   | 16993 |    96 |  296 |
+| core/rtos                  |  7384 |    92 | 4204 |
+| features/FEATURE_IPV4      |    80 |     0 |  176 |
+| frameworks/greentea-client |  1830 |    60 |   44 |
+| frameworks/utest           |  2392 |   512 |  292 |
+| Subtotals                  | 42618 |   784 | 6384 |
++----------------------------+-------+-------+------+
+Allocated Heap: unknown
+Allocated Stack: unknown
+Total Static RAM memory (data + bss): 7168 bytes
+Total RAM memory (data + bss + heap + stack): 7168 bytes
+Total Flash memory (text + data + misc): 43402 bytes
+Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
+```
+
+### Program your board
+
+1. Connect your mbed device to the computer over USB.
+1. Copy the binary file to the mbed device.
+1. Press the reset button to start the program.
+
+The LED on your platform turns on and off.
+
+## Export the project to Keil MDK, and debug your application
+
+From the command-line, run the following command:
+
+```
+mbed export -m K64F -i uvision
+```
+
+To debug the application:
+
+1. Start uVision.
+1. Import the uVision project generated earlier.
+1. Compile your application, and generate an `.axf` file.
+1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
+1. Set breakpoints, and start a debug session.
+
+![Image of uVision](img/uvision.png)
+
+## Troubleshooting
+
+1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
+
+ ```
+ mbed --version
+ ```
+
+ If not, you can update it:
+
+ ```
+ pip install mbed-cli --upgrade
+ ```
+
+2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32 KB restriction on code size.
\ No newline at end of file
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 05 11:55:21 2017 +0000
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+#include "mbed.h"
+#include "MQ2.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
+MQ2 mq2(A1);                                                                    // Analog Port to read from
+
+int main() {
+    pc.baud(115200);
+    mq2.begin();                                                                // 'Calibrate' sensor
+    MQ2_data_t MQ2_data;                                                        // Structure to hold data.
+    while (true) {
+        pc.printf("CO PPM: %.0f\r\n",mq2.readCO());                             // Performs a one shot read of CO
+        pc.printf("Smoke PPM: %.0f\r\n",mq2.readSmoke());                       // Performs a one shot read of Smoke
+        pc.printf("LPG PPM: %.0f\r\n",mq2.readLPG());                           // Performs a one shot read of LPG
+        wait(5);
+        mq2.read(&MQ2_data);                                                    // Alt reading method, reading to struct
+        pc.printf("CO PPM: %.0f\r\n",MQ2_data.co);                              // Return data from strut
+        pc.printf("Smoke PPM: %.0f\r\n",MQ2_data.smoke);                        // Return data from strut
+        pc.printf("LPG PPM: %.0f\r\n",MQ2_data.lpg);                            // Return data from strut
+        wait(5);
+    }
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Thu Oct 05 11:55:21 2017 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#3179b1cffddea0f0feed1dd551b0e7dc946c12f5