Nicholas Outram
Coursework template
Dependencies: BMP280 TextLCD BME280
Revision 0:57d39f966513, committed 2018-11-24
- Comitter:
- noutram
- Date:
- Sat Nov 24 09:35:51 2018 +0000
- Commit message:
- updated for 2018;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.gitignore Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,4 @@ +.build +.mbed +projectfiles +*.py*
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BME280.lib Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/MACRUM/code/BME280/#c1f1647004c4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BMP280.lib Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/charly/code/BMP280/#d22ecbef9b90
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Networkbits.cpp Sat Nov 24 09:35:51 2018 +0000
@@ -0,0 +1,68 @@
+#include "sample_hardware.hpp"
+#include "Networkbits.hpp"
+
+//Network thread - responsible for listening for connectinos and responding with updated tempature values
+void networktest()
+{
+ //This only runs when BOTH switches are pressed down
+ if ((SW1 == 0) || (SW2 == 0)) return;
+
+ lcd.cls();
+ lcd.printf("Basic HTTP server example\n");
+
+ //Configure an ethernet connection
+ EthernetInterface eth;
+ eth.set_network(IP, NETMASK, GATEWAY);
+ eth.connect();
+ lcd.printf("The target IP address is '%s'\n", eth.get_ip_address());
+
+ //Now setup a web server
+ TCPServer srv; //TCP/IP Server
+ TCPSocket clt_sock; //Socket for communication
+ SocketAddress clt_addr; //Address of incoming connection
+
+ /* Open the server on ethernet stack */
+ srv.open(ð);
+
+ /* Bind the HTTP port (TCP 80) to the server */
+ srv.bind(eth.get_ip_address(), 80);
+
+ /* Can handle 5 simultaneous connections */
+ srv.listen(5);
+
+ //KEEP RESPONDING WHILE THE SWITCHES ARE PRESSED
+ while ((SW1 == 1) && (SW2 == 1)) {
+ using namespace std;
+ lcd.cls();
+ lcd.printf("Open 10.0.0.1 in a browser\n");
+
+ //Block and wait on an incoming connection
+ srv.accept(&clt_sock, &clt_addr);
+ printf("accept %s:%d\n", clt_addr.get_ip_address(), clt_addr.get_port());
+
+ //Uses a C++ string to make it easier to concatinate
+ string response;
+ //This is a C string
+ char ldr_str[64];
+
+ //Read the temperature value - note that getParameters() is thread safe
+ float temp = sensor.getTemperature();
+
+ //Convert to a C String
+ sprintf(ldr_str, "%5.3f", temp );
+ printf("LDR: %5.3f\n\r", temp);
+
+ //Build the C++ string response
+ response = HTTP_MESSAGE_BODY1;
+ response += ldr_str;
+ response += HTTP_MESSAGE_BODY2;
+
+ //Send static HTML response (as a C string)
+ clt_sock.send(response.c_str(), response.size()+6);
+ }
+
+ printf("Release BOTH switches\n");
+ lcd.printf("Release BOTH switches\n");
+ while ((SW1 != 0) && (SW2 != 0));
+ wait(0.5); //debounce
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Networkbits.hpp Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,38 @@ +#ifndef MBED_NETWORKBITS_H +#define MBED_NETWORKBITS_H + +#include "mbed.h" +#include "EthernetInterface.h" +#include "TCPServer.h" +#include "TCPSocket.h" +#include <iostream> +#include <string> + + +#define HTTP_STATUS_LINE "HTTP/1.0 200 OK" +#define HTTP_HEADER_FIELDS "Content-Type: text/html; charset=utf-8" +#define HTTP_MESSAGE_BODY1 "" \ +"<html>" "\r\n" \ +" <body style=\"display:flex;text-align:center\">" "\r\n" \ +" <div style=\"margin:auto\">" "\r\n" \ +" <h1>Hello World</h1>" "\r\n" \ +" <p>The temperature is " + +#define HTTP_MESSAGE_BODY2 "" \ + "</p>" "\r\n" \ +" </div>" "\r\n" \ +" </body>" "\r\n" \ +"</html>" + +#define HTTP_RESPONSE HTTP_STATUS_LINE "\r\n" \ + HTTP_HEADER_FIELDS "\r\n" \ + "\r\n" \ + HTTP_MESSAGE_BODY "\r\n" + +#define IP "10.0.0.10" +#define NETMASK "255.0.0.0" +#define GATEWAY "10.0.0.1" + +extern void networktest(); + +#endif \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README.md Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,57 @@ +# 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. + +## Troubleshooting + +If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/simon/code/TextLCD/#308d188a2d3a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Nov 24 09:35:51 2018 +0000
@@ -0,0 +1,82 @@
+#include "sample_hardware.hpp"
+#include "Networkbits.hpp"
+
+// This is a very short demo that demonstrates all the hardware used in the coursework.
+// You will need a network connection set up (covered elsewhere). The host PC should have the address 10.0.0.1
+
+//Threads
+Thread nwrkThread;
+
+
+int main() {
+ //Greeting
+ printf("Testing\n\n");
+
+ //Power on self test
+ post();
+
+ //Initialise the SD card (this needs to move)
+ if ( sd.init() != 0) {
+ printf("Init failed \n");
+ lcd.cls();
+ lcd.printf("CANNOT INIT SD");
+ errorCode(FATAL);
+ }
+
+ //Create a filing system for SD Card
+ FATFileSystem fs("sd", &sd);
+
+ //Open to WRITE
+ FILE* fp = fopen("/sd/test.csv","a");
+ if (fp == NULL) {
+ error("Could not open file for write\n");
+ lcd.cls();
+ lcd.printf("CANNOT OPEN FILE\n\n");
+ errorCode(FATAL);
+ }
+
+ //Last message before sampling begins
+ lcd.cls();
+ lcd.printf("READY\n\n");
+
+
+ //Press either switch to unmount
+ while ((SW1 == 0) && (SW2 == 0)) {
+
+ //Base loop delay
+ wait(1.0);
+
+ //Read environmental sensors
+ double temp = sensor.getTemperature();
+ double pressure = sensor.getPressure();
+
+ //Write new data to LCD (not fast!)
+ lcd.cls();
+ lcd.printf("Temp Pressure\n");
+ lcd.printf("%6.1f ",temp);
+ lcd.printf("%.2f\n",pressure);
+
+ //Write to SD (potentially slow)
+ fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure);
+ }
+
+ //Close File
+ fclose(fp);
+
+ //Close down
+ sd.deinit();
+ printf("Unmounted...\n");
+ lcd.cls();
+ lcd.printf("Unmounted...\n\n");
+
+ //Flash to indicate goodness
+ while(true) {
+ greenLED = 1;
+ wait(0.5);
+ greenLED = 0;
+ wait(0.1);
+ }
+}
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#2fd0c5cfbd83fce62da6308f9d64c0ab64e1f0d6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sample_hardware.cpp Sat Nov 24 09:35:51 2018 +0000
@@ -0,0 +1,107 @@
+#include "mbed.h"
+#include "sample_hardware.hpp"
+#include "Networkbits.hpp"
+
+#define RED_DONE 1
+#define YELLOW_DONE 2
+
+//Digital outputs
+DigitalOut onBoardLED(LED1);
+DigitalOut redLED(PE_15);
+DigitalOut yellowLED(PB_10);
+DigitalOut greenLED(PB_11);
+
+//Inputs
+DigitalIn onBoardSwitch(USER_BUTTON);
+DigitalIn SW1(PE_12);
+DigitalIn SW2(PE_14);
+//Serial pc(USBTX, USBRX);
+AnalogIn adcIn(PA_0);
+
+//Environmental Sensor driver
+#ifdef BME
+BME280 sensor(D14, D15);
+#else
+BMP280 sensor(D14, D15);
+#endif
+
+//LCD Driver (provided via mbed repository)
+//RS D9
+//E D8
+//D7,6,4,2 are the 4 bit for d4-7
+TextLCD lcd(D9, D8, D7, D6, D4, D2); // rs, e, d4-d7
+
+//SD Card
+SDBlockDevice sd(PB_5, D12, D13, D10); // mosi, miso, sclk, cs
+
+//POWER ON SELF TEST
+void post()
+{
+ //POWER ON TEST (POT)
+ puts("**********STARTING POWER ON SELF TEST (POST)**********");
+
+ //Test LEDs
+ puts("ALL LEDs should be blinking");
+ for (unsigned int n=0; n<10; n++) {
+ redLED = 1;
+ yellowLED = 1;
+ greenLED = 1;
+ wait(0.05);
+ redLED = 0;
+ yellowLED = 0;
+ greenLED = 0;
+ wait(0.05);
+ }
+
+ //Output the switch states (hold them down to test)
+ printf("SW1: %d\tSW2: %d\n\r", SW1.read(), SW2.read());
+ printf("USER: %d\n\r", onBoardSwitch.read());
+
+ //Output the ADC
+ printf("ADC: %f\n\r", adcIn.read());
+
+ //Read Sensors (I2C)
+ float temp = sensor.getTemperature();
+ float pressure = sensor.getPressure();
+ #ifdef BME
+ float humidity = sensor.getHumidity();
+ #endif
+
+ //Display in PuTTY
+ printf("Temperature: %5.1f\n", temp);
+ printf("Pressure: %5.1f\n", pressure);
+ #ifdef BME
+ printf("Pressure: %5.1f\n", humidity);
+ #endif
+
+ //Display on LCD
+ redLED = 1;
+ lcd.cls();
+ lcd.printf("LCD TEST...");
+ wait(0.5);
+ redLED = 0;
+
+ //Network test (if BOTH switches are held down)
+ networktest();
+
+ puts("**********POST END**********");
+
+}
+
+void errorCode(ELEC350_ERROR_CODE err)
+{
+ switch (err) {
+ case OK:
+ greenLED = 1;
+ wait(1.0);
+ greenLED = 0;
+ return;
+ case FATAL:
+ while(1) {
+ redLED = 1;
+ wait(0.1);
+ redLED = 0;
+ wait(0.1);
+ }
+ };
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sample_hardware.hpp Sat Nov 24 09:35:51 2018 +0000
@@ -0,0 +1,39 @@
+#ifndef __sample_hardware__
+#define __sample_hardware__
+
+//#define BME
+#ifdef BME
+#include "BME280.h"
+#else
+#include "BMP280.h"
+#endif
+#include "TextLCD.h"
+#include "SDBlockDevice.h"
+#include "FATFileSystem.h"
+
+enum ELEC350_ERROR_CODE {OK, FATAL};
+
+extern DigitalOut onBoardLED;
+extern DigitalOut redLED;
+extern DigitalOut yellowLED;
+extern DigitalOut greenLED;
+
+extern DigitalIn onBoardSwitch;
+extern DigitalIn SW1;
+extern DigitalIn SW2;
+//extern Serial pc;
+extern AnalogIn adcIn;
+
+#ifdef BME
+extern BME280 sensor;
+#else
+extern BMP280 sensor;
+#endif
+
+extern TextLCD lcd;
+extern SDBlockDevice sd;
+
+extern void post();
+extern void errorCode(ELEC350_ERROR_CODE err);
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sd-driver.lib Sat Nov 24 09:35:51 2018 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/sd-driver/#ae7e7440054c9447f8255bdccbcc523b3f6dffe4