WIP driver for adafruit display

lib/matrix_orbital/AdafruitVfdDisplay.cpp

@@ -0,0 +1,51 @@
+#include "AdafruitVfdDisplay.hpp"
+
+AdafruitVfdDisplay::AdafruitVfdDisplay(UART& lcdUart) : m_lcdUart{lcdUart} {}
+
+
+void AdafruitVfdDisplay::createChar(uint8_t id, uint8_t* c) {
+
+}
+
+void AdafruitVfdDisplay::drawBlinker() {
+
+}
+
+void AdafruitVfdDisplay::clearBlinker() {
+
+}
+
+void AdafruitVfdDisplay::begin() {
+    delay(500);
+    clear();
+}
+
+void AdafruitVfdDisplay::clear() {
+    uint8_t clearCmd[] = {0xfe, 0x58};
+    m_lcdUart.write_raw(clearCmd, sizeof(clearCmd));
+}
+
+void AdafruitVfdDisplay::show() {
+
+}
+
+void AdafruitVfdDisplay::hide() {
+
+}
+
+void AdafruitVfdDisplay::draw(uint8_t byte) {
+
+}
+
+void AdafruitVfdDisplay::draw(const char* text) {
+
+}
+
+void AdafruitVfdDisplay::setCursor(uint8_t col, uint8_t row) {
+
+}
+
+void AdafruitVfdDisplay::setBacklight(bool enabled) {
+    uint8_t backlightCmd[] = {0xfe, 0x99, enabled ? 150 : 50};
+    m_lcdUart.write_raw(backlightCmd, sizeof(backlightCmd));
+}

lib/matrix_orbital/AdafruitVfdDisplay.hpp

@@ -0,0 +1,35 @@
+/**
+ *
+ * Implementation of LcdMenu::CharacterDisplayInterface
+ * For the Adafruit Character LCD Serial backpack. Which per their docs
+ * has a similar interface to the "Matrix Orbital Specification"
+ * @see https://learn.adafruit.com/usb-plus-serial-backpack/command-reference
+ */
+#ifndef __ADAFRUITVFDDISPINTERFACE_H__
+#define __ADAFRUITVFDDISPINTERFACE_H__
+
+#include <display/CharacterDisplayInterface.h>
+
+class AdafruitVfdDisplay : public CharacterDisplayInterface {
+   public:
+    AdafruitVfdDisplay(UART& lcdUart);
+
+    // interface implementations
+
+    void createChar(uint8_t id, uint8_t* c) override;
+    void drawBlinker() override;
+    void clearBlinker() override;
+    void begin() override;
+    void clear() override;
+    void show() override;
+    void hide() override;
+    void draw(uint8_t byte) override;
+    void draw(const char* text) override;
+    void setCursor(uint8_t col, uint8_t row) override;
+    void setBacklight(bool enabled) override;
+
+   private:
+    UART m_lcdUart;
+};
+
+#endif /* __ADAFRUITVFDDISPINTERFACE_H__ */

platformio.ini

@@ -15,3 +15,4 @@ framework = arduino
 monitor_speed = 115200
 lib_deps = 
 	mathertel/OneButton@^2.6.1
+	forntoh/LcdMenu@^5.6.0