[examples] Add SH1106/SSD1306 I2C display example for Nucleo-G474RE

Author: rleh

examples/nucleo_g474re/sh1106_i2c/main.cpp

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+/*
+ * Copyright (c) 2023, Raphael Lehmann
+ *
+ * This file is part of the modm project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <modm/board.hpp>
+#include <modm/driver/display/sh1106_i2c.hpp>
+// #include <modm/driver/display/ssd1306_i2c.hpp>
+
+/// SH1106 display in I2C mode
+using MyI2cMaster = modm::platform::I2cMaster1;
+using Scl = Board::D15;
+using Sda = Board::D14;
+
+using Display = modm::Sh1106I2c<MyI2cMaster>;
+// using Display = modm::Ssd1306<MyI2cMaster>;
+
+Display display;
+
+int
+main()
+{
+	Board::initialize();
+
+	modm::delay(100ms);
+
+	MyI2cMaster::connect<Sda::Sda, Scl::Scl>();
+	// Use 20kHz I2C and internal pull-ups, works without external pull-ups
+	// if the jumper wires are short enought
+	MyI2cMaster::initialize<Board::SystemClock, 20_kHz>();
+	Sda::configure(Sda::InputType::PullUp);
+	Scl::configure(Sda::InputType::PullUp);
+
+	modm::delay(100ms);
+
+	RF_CALL_BLOCKING(display.initialize());
+	RF_CALL_BLOCKING(display.setOrientation(modm::glcd::Orientation::Landscape0));
+	RF_CALL_BLOCKING(display.setDisplayMode(Display::DisplayMode::Inverted));
+	RF_CALL_BLOCKING(display.setContrast(80));
+
+	display.setFont(modm::font::Assertion);
+
+	modm::ShortPeriodicTimer timer(333ms);
+	uint16_t counter(0);
+
+	while (true)
+	{
+		if (timer.execute())
+		{
+			display.clear();
+			display.setCursor(1, 1);
+			display << "Hello World!";
+			display.setCursor(1, 17);
+			display << counter++;
+			display.setCursor(1, 33);
+			display << "Line 3";
+			display.setCursor(1, 49);
+			display << "Line 4";
+
+			display.update();
+		}
+	}
+
+	return 0;
+}

examples/nucleo_g474re/sh1106_i2c/project.xml

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+<library>
+  <extends>modm:nucleo-g474re</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_g474re/sh1106_i2c</option>
+  </options>
+  <modules>
+    <module>modm:driver:sh1106.i2c</module>
+    <module>modm:driver:ssd1306.i2c</module>
+    <module>modm:platform:gpio</module>
+    <module>modm:platform:i2c:1</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>