Andrew Reed
NTP demo for cypress Pioneer and Proto Dev kits also reads available analogue sensors
Diff: main.cpp
- Revision:
- 7:a92448410a8e
- Parent:
- 6:7fb6949e4f7e
- Child:
- 8:4d13f66d6b5f
--- a/main.cpp Fri Jul 03 15:57:42 2020 +0100
+++ b/main.cpp Fri Jul 03 16:35:46 2020 +0100
@@ -1,5 +1,5 @@
+#include "GUI.h"
#include "mbed.h"
-#include "GUI.h"
#include "mbed_events.h"
#include "ntp-client/NTPClient.h"
@@ -28,239 +28,249 @@
Semaphore WiFiSemaphore;
#define SENSOR_BOARD
#ifdef CY8CKIT_TFT
-DigitalOut PwrEnable(P6_2);
+DigitalOut PwrEnable(P6_2);
#ifdef SENSOR_BOARD
-AnalogIn ALS(P10_7); //Sensor Board
+AnalogIn ALS(P10_7); // Sensor Board
#else
-AnalogIn ALS(P10_0); //TFT Board
+AnalogIn ALS(P10_0); // TFT Board
#endif
static float lightlevel;
#else
-#define GUI_ \/\/
-DigitalOut PwrEnable(P10_0);
-DigitalOut ThermGnd(P10_3);
-AnalogIn Thermistor(P10_1);
+#define GUI_ \/\/
+DigitalOut PwrEnable(P10_0);
+DigitalOut ThermGnd(P10_3);
+AnalogIn Thermistor(P10_1);
static float TempAverage;
#endif
/******************************************************************************************
-*
-* Display Functions
-*
-********************************************************************************************/
+ *
+ * Display Functions
+ *
+ ********************************************************************************************/
#define DISP_LEFTMARGIN 10
#define DISP_TOPMARGIN 4
#define DISP_LINESPACE 2
// updateDisplayWiFiStatus
// Used to display the wifi status
-void updateDisplayWiFiStatus(char *status)
-{
- GUI_SetFont(GUI_FONT_16_1);
- GUI_DispStringAt(status,DISP_LEFTMARGIN, DISP_TOPMARGIN);
- printf("%s\r\n", status);
- free(status);
+void updateDisplayWiFiStatus(char *status) {
+ GUI_SetFont(GUI_FONT_16_1);
+ GUI_DispStringAt(status, DISP_LEFTMARGIN, DISP_TOPMARGIN);
+ printf("%s\r\n", status);
+ free(status);
}
// updateDisplayWiFiConnectAttempts
// This function displays the number of attempted connections
-void updateDisplayWiFiConnectAttempts(int count)
-{
- char buffer[128];
- snprintf(buffer,sizeof(buffer),"WiFi Connect Attempts = %d",count);
- GUI_SetFont(GUI_FONT_16_1);
- GUI_DispStringAt(buffer,DISP_LEFTMARGIN, DISP_TOPMARGIN + (GUI_GetFontSizeY()+DISP_LINESPACE) );
+void updateDisplayWiFiConnectAttempts(int count) {
+ char buffer[128];
+ snprintf(buffer, sizeof(buffer), "WiFi Connect Attempts = %d", count);
+ GUI_SetFont(GUI_FONT_16_1);
+ GUI_DispStringAt(buffer, DISP_LEFTMARGIN,
+ DISP_TOPMARGIN + (GUI_GetFontSizeY() + DISP_LINESPACE));
}
// updateDisplayNTPFailed
// updates the display with the number of time the NTP Server has been called
// and got a failed response
-void updateDisplayNTPFailed(void)
-{
- static int count=0;
- char buffer[128];
- count = count + 1;
- snprintf(buffer,sizeof(buffer),"NTP Update Failure = %d\n",count);
- GUI_SetFont(GUI_FONT_16_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize() - 2*GUI_GetFontSizeY()); // near the bottom
+void updateDisplayNTPFailed(void) {
+ static int count = 0;
+ char buffer[128];
+ count = count + 1;
+ snprintf(buffer, sizeof(buffer), "NTP Update Failure = %d\n", count);
+ GUI_SetFont(GUI_FONT_16_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() -
+ 2 * GUI_GetFontSizeY()); // near the bottom
}
// updateDisplayNTPCount
// updates the display with the number of time the NTP Server has been called
-void updateDisplayNTPCount(void)
-{
- static int count=0;
- char buffer[128];
- count = count + 1;
- snprintf(buffer,sizeof(buffer),"NTP Updates = %d\n",count);
- GUI_SetFont(GUI_FONT_16_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize() - GUI_GetFontSizeY()); // near the bottom
+void updateDisplayNTPCount(void) {
+ static int count = 0;
+ char buffer[128];
+ count = count + 1;
+ snprintf(buffer, sizeof(buffer), "NTP Updates = %d\n", count);
+ GUI_SetFont(GUI_FONT_16_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() -
+ GUI_GetFontSizeY()); // near the bottom
}
// updateDisplayTime
// This function updates the time on the screen
-void updateDisplayTime()
-{
- time_t rawtime;
- struct tm * timeinfo;
- char buffer [128];
- time (&rawtime);
- //rawtime = rawtime - (4*60*60); // UTC - 4hours ... serious hack which only works in summer
- rawtime = rawtime + 3600; // GMT + 1 for BST
- timeinfo = localtime (&rawtime);
- strftime (buffer,sizeof(buffer)," %T ", timeinfo);
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize()/2 - GUI_GetFontSizeY()/2 - 20);
- printf("%s%c[K\r\n",buffer, 0x1b);
- strftime (buffer,sizeof(buffer)," %A ",timeinfo);
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize()/2 - GUI_GetFontSizeY()/2 + 20);
- printf("%s%c[K\r\n",buffer, 0x1b);
- strftime (buffer,sizeof(buffer)," %d/%m/%y ",timeinfo);
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize()/2 - GUI_GetFontSizeY()/2 + 60);
- printf("%s%c[K\r\n",buffer, 0x1b);
+void updateDisplayTime() {
+ time_t rawtime;
+ struct tm *timeinfo;
+ char buffer[128];
+ time(&rawtime);
+ // rawtime = rawtime - (4*60*60); // UTC - 4hours ... serious hack which only
+ // works in summer
+ rawtime = rawtime + 3600; // GMT + 1 for BST
+ timeinfo = localtime(&rawtime);
+ strftime(buffer, sizeof(buffer), " %T ", timeinfo);
+ GUI_SetFont(GUI_FONT_32B_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() / 2 - GUI_GetFontSizeY() / 2 - 20);
+ printf("%s%c[K\r\n", buffer, 0x1b);
+ strftime(buffer, sizeof(buffer), " %A ", timeinfo);
+ GUI_SetFont(GUI_FONT_32B_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() / 2 - GUI_GetFontSizeY() / 2 + 20);
+ printf("%s%c[K\r\n", buffer, 0x1b);
+ strftime(buffer, sizeof(buffer), " %d/%m/%y ", timeinfo);
+ GUI_SetFont(GUI_FONT_32B_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() / 2 - GUI_GetFontSizeY() / 2 + 60);
+ printf("%s%c[K\r\n", buffer, 0x1b);
#ifdef CY8CKIT_TFT
- sprintf(buffer, " Light = %d%c ",int(lightlevel*100), '%');
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize()/2 - GUI_GetFontSizeY()/2 - 60);
- printf("%s%c[K",buffer, 0x1b);
+ sprintf(buffer, " Light = %d%c ", int(lightlevel * 100), '%');
+ GUI_SetFont(GUI_FONT_32B_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() / 2 - GUI_GetFontSizeY() / 2 - 60);
+ printf("%s%c[K", buffer, 0x1b);
#else
- float temperature = (B_CONSTANT / (logf((R_REFERENCE / ( 1 / TempAverage - 1 )) /
- R_INFINITY))) + ABSOLUTE_ZERO;
+ float temperature =
+ (B_CONSTANT /
+ (logf((R_REFERENCE / (1 / TempAverage - 1)) / R_INFINITY))) +
+ ABSOLUTE_ZERO;
- sprintf(buffer, " Temperature = %d.%1d C\r\n",int(temperature),
- int((temperature-(int)temperature)*10));
- GUI_SetFont(GUI_FONT_32B_1);
- GUI_DispStringHCenterAt(buffer,LCD_GetXSize()/2,LCD_GetYSize()/2 - GUI_GetFontSizeY()/2 - 60);
- printf("%s%c[K",buffer, 0x1b);
+ sprintf(buffer, " Temperature = %d.%1d C\r\n", int(temperature),
+ int((temperature - (int)temperature) * 10));
+ GUI_SetFont(GUI_FONT_32B_1);
+ GUI_DispStringHCenterAt(buffer, LCD_GetXSize() / 2,
+ LCD_GetYSize() / 2 - GUI_GetFontSizeY() / 2 - 60);
+ printf("%s%c[K", buffer, 0x1b);
#endif
- printf("%c[4A", 0x1b );
+ printf("%c[4A", 0x1b); // Cursor up 4
}
-void readSensors(){
- PwrEnable = 1;
+void readSensors() {
+ PwrEnable = 1;
#ifdef CY8CKIT_TFT
- static int lcount = 0;
- static float Light[8];
- Light[lcount] = ALS;
- lcount = (lcount + 1) & 0x7;
- if (lcount == 0) {
+ static int lcount = 0;
+ static float Light[8];
+ Light[lcount] = ALS;
+ lcount = (lcount + 1) & 0x7;
+ if (lcount == 0) {
lightlevel = 0;
- for (int i = 0; i < 8; i++) lightlevel += Light[i];
- lightlevel = lightlevel/8;
+ for (int i = 0; i < 8; i++)
+ lightlevel += Light[i];
+ lightlevel = lightlevel / 8;
#ifdef SENSOR_BOARD
- lightlevel = 1 - lightlevel;
-#endif
+ lightlevel = 1 - lightlevel;
+#endif
#else
- ThermGnd = 0;
- static int lcount = 0;
- static float Therm[8];
- float thermValue;
- float rThermistor;
- thermValue = Thermistor;
- Therm[lcount] = thermValue;
- lcount = (lcount + 1) & 0x7;
- if (lcount == 0) {
- TempAverage = 0;
- for (int i = 0; i < 8; i++) TempAverage += Therm[i];
- TempAverage = TempAverage/8;
-/* rThermistor = (R_REFERENCE/(1 / TempAverage -1 ));
- * temperature =
- * (B_CONSTANT / (logf(rThermistor / R_INFINITY))) + ABSOLUTE_ZERO;
- *
- * temperature = (B_CONSTANT / (logf((R_REFERENCE / ( 1 / TempAverage - 1 )) /
- * R_INFINITY))) + ABSOLUTE_ZERO;
- *
- * printf("Temp is %d\r\n",(int)(temperature*10));
- * for (int i = 0; i < 8; i++)
- * printf("%d ", (int)(Therm[i]*1000));
- * printf("therm=%d\r\n", (int)(thermValue*1000));
- */
+ ThermGnd = 0;
+ static int lcount = 0;
+ static float Therm[8];
+ float thermValue;
+ float rThermistor;
+ thermValue = Thermistor;
+ Therm[lcount] = thermValue;
+ lcount = (lcount + 1) & 0x7;
+ if (lcount == 0) {
+ TempAverage = 0;
+ for (int i = 0; i < 8; i++)
+ TempAverage += Therm[i];
+ TempAverage = TempAverage / 8;
+ /* rThermistor = (R_REFERENCE/(1 / TempAverage -1 ));
+ * temperature =
+ * (B_CONSTANT / (logf(rThermistor / R_INFINITY))) + ABSOLUTE_ZERO;
+ *
+ * temperature = (B_CONSTANT / (logf((R_REFERENCE / ( 1 / TempAverage
+ * - 1 )) / R_INFINITY))) + ABSOLUTE_ZERO;
+ *
+ * printf("Temp is %d\r\n",(int)(temperature*10));
+ * for (int i = 0; i < 8; i++)
+ * printf("%d ", (int)(Therm[i]*1000));
+ * printf("therm=%d\r\n", (int)(thermValue*1000));
+ */
#endif
PwrEnable = 0;
- }
+ }
}
/******************************************************************************************
-* NTPTimeThread
-* This thread calls the NTP Timeserver to get the UTC time
-* It then updates the time in the RTC
-* And it updates the display by adding an event to the display queue
-********************************************************************************************/
-void NTPTimeThread()
-{
- static time_t old_timestamp = 0, timestamp;
- NTPClient ntpclient(wifi);
- while(1) {
- if(wifi->get_connection_status() == NSAPI_STATUS_GLOBAL_UP) {
- timestamp = ntpclient.get_timestamp();
- if (timestamp < 1593627000) {
- displayQueue->call(updateDisplayNTPFailed);
- printf("faulty timestamp %d\r\n", timestamp);
- } else {
- set_time(timestamp);
- old_timestamp = timestamp;
- displayQueue->call(updateDisplayNTPCount);
- }
- }
- ThisThread::sleep_for(300s); // Goto the NTP server every 5 minutes
+ * NTPTimeThread
+ * This thread calls the NTP Timeserver to get the UTC time
+ * It then updates the time in the RTC
+ * And it updates the display by adding an event to the display queue
+ ********************************************************************************************/
+void NTPTimeThread() {
+ static time_t old_timestamp = 0, timestamp;
+ NTPClient ntpclient(wifi);
+ while (1) {
+ if (wifi->get_connection_status() == NSAPI_STATUS_GLOBAL_UP) {
+ timestamp = ntpclient.get_timestamp();
+ if (timestamp < 1593627000) {
+ displayQueue->call(updateDisplayNTPFailed);
+ printf("faulty timestamp %d\r\n", timestamp);
+ } else {
+ set_time(timestamp);
+ old_timestamp = timestamp;
+ displayQueue->call(updateDisplayNTPCount);
+ }
}
+ ThisThread::sleep_for(300s); // Goto the NTP server every 5 minutes
+ }
}
/******************************************************************************************
-*
-* Main & WiFi Thread
-*
-********************************************************************************************/
+ *
+ * Main & WiFi Thread
+ *
+ ********************************************************************************************/
// wifiStatusCallback
// Changes the display when the wifi status is changed
-void wifiStatusCallback(nsapi_event_t status, intptr_t param)
-{
- const int buffSize=40;
- char *statusText;
- SocketAddress a;
- statusText = (char *)malloc(buffSize);
- switch(param) {
- case NSAPI_STATUS_LOCAL_UP:
- wifi->get_ip_address(&a);
- snprintf(statusText,buffSize,"WiFi IP = %s",a.get_ip_address());
- break;
- case NSAPI_STATUS_GLOBAL_UP:
- wifi->get_ip_address(&a);
- snprintf(statusText,buffSize,"WiFi IP = %s",a.get_ip_address());
- break;
- case NSAPI_STATUS_DISCONNECTED:
- WiFiSemaphore.release();
- snprintf(statusText,buffSize,"WiFi Disconnected");
- break;
- case NSAPI_STATUS_CONNECTING:
- snprintf(statusText,buffSize,"WiFi Connecting");
- break;
- default:
- snprintf(statusText,buffSize,"Not Supported");
- break;
- }
- displayQueue->call(updateDisplayWiFiStatus,statusText);
+void wifiStatusCallback(nsapi_event_t status, intptr_t param) {
+ const int buffSize = 40;
+ char *statusText;
+ SocketAddress a;
+ statusText = (char *)malloc(buffSize);
+ switch (param) {
+ case NSAPI_STATUS_LOCAL_UP:
+ wifi->get_ip_address(&a);
+ snprintf(statusText, buffSize, "WiFi IP = %s", a.get_ip_address());
+ break;
+ case NSAPI_STATUS_GLOBAL_UP:
+ wifi->get_ip_address(&a);
+ snprintf(statusText, buffSize, "WiFi IP = %s", a.get_ip_address());
+ break;
+ case NSAPI_STATUS_DISCONNECTED:
+ WiFiSemaphore.release();
+ snprintf(statusText, buffSize, "WiFi Disconnected");
+ break;
+ case NSAPI_STATUS_CONNECTING:
+ snprintf(statusText, buffSize, "WiFi Connecting");
+ break;
+ default:
+ snprintf(statusText, buffSize, "Not Supported");
+ break;
+ }
+ displayQueue->call(updateDisplayWiFiStatus, statusText);
}
-int main()
-{
- int wifiConnectionAttempts;
- int ret;
- GUI_Init();
- printf("%c[2J", 0x1b); // Clear Screen
- printf("%c[?25l", 0x1b); // Cursor Off
- displayQueue = mbed_event_queue();
- displayQueue->call_every(1s, &updateDisplayTime);
- displayQueue->call_every(100ms, &readSensors);
- wifi = WiFiInterface::get_default_instance();
- wifi->attach(&wifiStatusCallback);
+int main() {
+ int wifiConnectionAttempts;
+ int ret;
+ GUI_Init();
+ printf("%c[2J", 0x1b); // Clear Screen
+ printf("%c[?25l", 0x1b); // Cursor Off
+ displayQueue = mbed_event_queue();
+ displayQueue->call_every(1s, &updateDisplayTime);
+ displayQueue->call_every(100ms, &readSensors);
+ wifi = WiFiInterface::get_default_instance();
+ wifi->attach(&wifiStatusCallback);
- while(1) {
- wifiConnectionAttempts = 1;
- do {
- ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
- displayQueue->call(updateDisplayWiFiConnectAttempts,wifiConnectionAttempts);
- if (ret != 0) {
- wifiConnectionAttempts += 1;
- ThisThread::sleep_for(2s); // If for some reason it doesnt work wait 2s and try again
- }
- } while(ret !=0);
-// If the NTPThread is not running... then start it up
- if(netTimeThreadHandle.get_state() == Thread::Deleted)
- netTimeThreadHandle.start(NTPTimeThread);
- WiFiSemaphore.acquire();
- }
+ while (1) {
+ wifiConnectionAttempts = 1;
+ do {
+ ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD,
+ NSAPI_SECURITY_WPA_WPA2);
+ displayQueue->call(updateDisplayWiFiConnectAttempts,
+ wifiConnectionAttempts);
+ if (ret != 0) {
+ wifiConnectionAttempts += 1;
+ ThisThread::sleep_for(
+ 2s); // If for some reason it doesnt work wait 2s and try again
+ }
+ } while (ret != 0);
+ // If the NTPThread is not running... then start it up
+ if (netTimeThreadHandle.get_state() == Thread::Deleted)
+ netTimeThreadHandle.start(NTPTimeThread);
+ WiFiSemaphore.acquire();
+ }
}
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