Timo Karppinen
The ST NUCLEO L4342KC and Digilent Pmod OLEDrgb tested. Be aware of the correct revision of the OS and correct versions of the display driver libraries!
Dependencies: Adafruit_SSD1331_Mbed Adafruit-GFX
Revision 0:adc62c00bb85, committed 2020-08-29
- Comitter:
- timo_k2
- Date:
- Sat Aug 29 08:26:56 2020 +0000
- Commit message:
- The purpose of this project is to teach the students the development process and test that the hardware the ST NUCLEO-L432KC and the Digilent Pmod OLEDrgb work just fine. Be aware of correct revision of the OS and correct versions of the libraries!
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.gitignore Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,4 @@ +.build +.mbed +projectfiles +*.py*
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit-GFX.lib Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/EIC_mbed/code/Adafruit-GFX/#ca74c390a0de
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_SSD1331_Mbed.lib Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mjromeijn/code/Adafruit_SSD1331_Mbed/#e8e869596683
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CONTRIBUTING.md Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,5 @@ +# Contributing to Mbed OS + +Mbed OS is an open-source, device software platform for the Internet of Things. Contributions are an important part of the platform, and our goal is to make it as simple as possible to become a contributor. + +To encourage productive collaboration, as well as robust, consistent and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/mbed-os/latest/contributing/index.html).
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README.md Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,13 @@ + +# Built started by importing the Blinky Mbed OS example +[Mbed boards](https://os.mbed.com/platforms/). + +The code is developed for the hardware NUCLEO-L432KC and Digilent Pmod OLEDrgb. +The purpose is to make students to test that the development process works fine +and the hardware as well. + +### License and contributions + +The software is provided under Apache-2.0 license. Contributions to this project are accepted under the same license. Please see contributing.md for more info. + +This project contains code from other projects. The original license text is included in those source files. They must comply with our license guide.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Aug 29 08:26:56 2020 +0000
@@ -0,0 +1,160 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2019 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+************************************************************************
+*
+* Commissioning test for the L432KC and the Pmod small OLED display
+*
+*************************************************************************
+* Description: McLab10_OLEDrgb_L432KC
+* "Test module Pmod Digilent Lextronic" will be displayed on OLEDrgb module
+* with different size and colors..... and later the variable values.
+*
+* Material
+* 1. ST L432KC ( or some other micro controller board with SPI communication )
+* 2. Digilent Pmod OLEDrgb and the libraries
+* Adafruit_SSD1331_Mbed
+* Adafruit-GFX
+* These libraries can be found with search on the page
+* https://www.mbed.com/en/platform/mbed-os/
+* Please connect L432KC - Pmod_OLEDrgb with lines:
+* L432KC D13 - OLED 4 SCK hardware defined for the SPI
+* L432KC D11 - OLED 2 MOSI hardware definef for the SPI
+* L432KC D9 - OLED 1 CS or any other free
+* L432KC D10 - OLED 7 DC or any other free
+* L432KC D6 - OLED 8 RES or any other free
+* VCC - OLED 9 VCCEN Enable - VCC
+* VCC - OLED10 PMODEN Pmod Enable - VCC
+* GND - OLED 5 Ground
+* VCC - OLED 6 Power supply 3,3 V
+*
+*************************************************************************
+* Compiles OK, works with hardware with operating system revision 6691:cf4f12a
+* Compiles OK, DOESN'T WORK with hardware with op sys revision 7088:3ab72c7
+* Timo Karppinen 28.08.2020
+**************************************************************/
+
+#include "mbed.h"
+#include "Adafruit_SSD1331.h" // By using the Adafruit SSD1331 library and Adafruit GFX library
+#include "Adafruit_GFX.h" // we will get similar code than in Arduino-boards working.
+ // There are other SSD1331 libraries, too.
+ // https://os.mbed.com/search/?q=ssd1331
+ // The tested are:
+ // Adafruit_SSD1331_Mbed by Marijn Romeijn
+ // Adafruit_GFX by Team_EIC
+// 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 because of the SPI
+DigitalOut VCCEN(D3);
+DigitalOut PMODEN(D5);
+
+// Definition of colours on the OLED display
+#define Black 0x0000
+#define Blue 0x001F
+#define Red 0xF800
+#define Green 0x07E0
+#define Cyan 0x07FF
+#define Magenta 0xF81F
+#define Yellow 0xFFE0
+#define White 0xFFFF
+
+float stepsScaledF = 0; // 32 bit floating point
+void getSTEPS();
+
+char Time[50],Date[50];
+void getTime();
+int first = 0;
+
+int main()
+{
+ // Showing with a LED that program has started
+ // LED = 0;
+ VCCEN = 1; // if you did not connect VCCEN permanently to Vcc
+ PMODEN = 1; // if you did not connect PMODEN permanently to Vcc
+ ThisThread::sleep_for(2000);
+ // LED = 1;
+ ThisThread::sleep_for(2000);
+ // LED = 0;
+ // Initalize the PmodOLEDrgb
+ OLED.begin(); // initialization of display object
+
+ OLED.clearScreen();
+
+ while (true) {
+ while(first < 3)
+ {
+ first += 1;
+ OLED.fillScreen(Black); // background screen in black
+ OLED.setTextColor(Cyan); // colour of text in cyan
+ OLED.setCursor(0,0); // cursor is in x=0 and y=15
+ OLED.printf("Test module Pmod"); // display text
+ ThisThread::sleep_for(500); // wait 500 ms
+ OLED.setCursor(0,15); // cursor is in x=0 and y=15
+ OLED.setTextSize(2); // size of text
+ OLED.setTextColor(Red); // text in red colour
+ OLED.printf("DIGILENT"); // display text
+ OLED.setCursor(20,40); // cursor is in x=20 and y=40
+ OLED.setTextSize(1); // size of text
+ OLED.setTextColor(Green); // text in green colour
+ OLED.printf("LEXTRONIC"); // display text
+ OLED.drawFastHLine(1, 60, OLED.width()-1, Blue); //blue line x=1, width-1 and y=60
+ ThisThread::sleep_for(2000); // wait 2 s
+ OLED.fillScreen(Black); // background display in black (erase display)
+ OLED.fillRoundRect(5, 5, 30, 40, 1, Blue); // French flag bleu blanc rouge
+ OLED.fillRoundRect(35, 5, 30, 40, 1, White);
+ OLED.fillRoundRect(65, 5, 30, 40, 1, Red);
+ OLED.fillCircle(90, 55, 5, Yellow); // yellow circle with radius=5 in x=90 and y=55
+ ThisThread::sleep_for(2000); // wait 2 s
+ }
+
+ getTime();
+ OLED.clearScreen();
+ OLED.fillScreen(Black); // background screen in black
+ OLED.setTextColor(Cyan); // colour of text in cyan
+ ThisThread::sleep_for(300);
+ OLED.setCursor(0,0); // cursor is in x=0 and y=0
+ OLED.printf("Rec '%s' \n",Time);
+
+ getSTEPS();
+ OLED.printf("value = '%0.1f' \n",stepsScaledF);
+
+ if (stepsScaledF > 2.00)
+ {
+ OLED.setTextColor(Yellow);
+ OLED.printf("Be aware of reaching the limit");
+ OLED.fillRoundRect(10, 35, 50, 3 , 1, Yellow);
+ }
+ OLED.setCursor(0,40); // cursor is in x=0 and y=0
+ OLED.printf("Wait a moment !");
+ OLED.drawFastHLine(1, 60, OLED.width()-1, Blue); // blue line x=1 to screen width-1 and y=60
+ printf("printed on OLED");
+
+ ThisThread::sleep_for(3000);
+}
+}
+
+void getTime()
+{
+ 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);
+}
+
+void getSTEPS()
+{
+ static int count;
+
+ count = count + 100;
+ if (count > 4095){
+ count = 0;
+ }
+
+ stepsScaledF = (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);
+ ThisThread::sleep_for(100);
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Sat Aug 29 08:26:56 2020 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#cf4f12a123c05fcae83fc56d76442015cb8a39e9
Binary file resources/official_armmbed_example_badge.png has changed