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The code is developed for the hardware NUCLEO-L432KC and Digilent Pmod OLEDrgb. The purpose is to make students learn the development process and test that the hardware works fine. For converting this to Mbed OS 6 Adafruit_GFX.h needed to add #include "Stream.h" in beginning of the Adafruit_GFX.h Adafruit_SSD1331.cpp wait_ms(200) replaced with ThisThread::sleep_for(200ms); for all the similar wait_ms lines.
Dependencies: Adafruit-GFX-MbedOS6
Diff: main.cpp
- Revision:
- 3:64fb84822c90
- Parent:
- 2:29bb1ef0d6cd
- Child:
- 4:b3559f0f6072
--- a/main.cpp Mon Aug 31 10:48:14 2020 +0000 +++ b/main.cpp Thu Oct 01 05:28:04 2020 +0000 @@ -48,6 +48,7 @@ // PmodOLEDrgb Adafruit_SSD1331 OLED(D9, D6, D10, D11, NC, D13); // cs, res, dc, mosi, (nc), sck + //DigitalOut LED(LED1); // LED1, LED2, LED3 and LED4 are the D13 PB_3 pin in this board and //can not be used as a LED because of the SPI DigitalOut VCCEN(D3); @@ -63,8 +64,10 @@ #define Yellow 0xFFE0 #define White 0xFFFF -float stepsScaledF = 0; // 32 bit floating point -void getSTEPS(); +float ADCScaledF = 0; // 32 bit floating point +int volt = 0; +int millivolt = 0; +void getADC(); char Time[50],Date[50]; void getTime(); @@ -119,12 +122,12 @@ OLED.setTextColor(Cyan); // colour of text in cyan ThisThread::sleep_for(300ms); OLED.setCursor(0,0); // cursor is in x=0 and y=0 - OLED.printf("Rec '%s' \n",Time); + OLED.printf("Rec :%s \n",Time); - getSTEPS(); - OLED.printf("value = '%0.1f' \n",stepsScaledF); + getADC(); + OLED.printf("VOLT :%d.%03d\r\n", volt, millivolt); - if (stepsScaledF > 2.00) + if (ADCScaledF > 2.00) { OLED.setTextColor(Yellow); OLED.printf("Be aware of reaching the limit"); @@ -144,21 +147,23 @@ time_t seconds = time(NULL); // https://os.mbed.com/docs/mbed-os/v6.2/apis/time.html strftime(Time,40,"%H:%M:%S", localtime(&seconds)); strftime(Date,40,"%d-%b-%Y", localtime(&seconds)); - printf("Recorded '%s' \r\n",Time); + printf("Recorded :%s \r\n",Time); } -void getSTEPS() +void getADC() { - static int count; + static int count = 200; // variable value like it would be from Analog to Digital Converter - count = count + 100; + count = count + 10; if (count > 4095){ - count = 0; + count = 200; } - stepsScaledF = (float(count))*(float(2.50)/4095); // The value 2.50 is 64 bit double precision floating point of type double. + ADCScaledF = (float(count))*(float(2.50)/4095); // The value 2.50 is 64 bit double precision floating point of type double. // Conversions to 32 bit floating point of type float. - printf("Counter value '%d' \r\n",count); - printf("Scaled output '%0.1f' \r\n",stepsScaledF); + volt = (int)ADCScaledF; // The OS6 does not include floating point printf !!! + millivolt = ((int)(ADCScaledF*1000))% 1000; // Millivolts counted with c++ modulus operator + printf("ADC :%d \r\n",count); + printf("VOLT :%d.%03d\r\n", volt, millivolt); // millivolts with preceeding zeros and three digits ThisThread::sleep_for(100ms); } \ No newline at end of file