From: Advaith Menon <83835839+advaithm582@users.noreply.github.com>
Date: Fri, 26 Sep 2025 21:24:44 +0000 (-0400)
Subject: Finish Lab 4
X-Git-Url: https://git.devinivas.org/?a=commitdiff_plain;h=c366ff5b41d33f5d66a525175e7cd6a249d5d9bd;p=gt-ece4180-lab02.git

Finish Lab 4
* uLCD now moves with nav switch
---

diff --git a/04-uLCDNavSwitch/04-uLCDNavSwitch.ino b/04-uLCDNavSwitch/04-uLCDNavSwitch.ino
index 74f966a..e442bd6 100644
--- a/04-uLCDNavSwitch/04-uLCDNavSwitch.ino
+++ b/04-uLCDNavSwitch/04-uLCDNavSwitch.ino
@@ -1,6 +1,126 @@
+/**
+ * @file 04-uLCDNavSwitch.ino
+ * @author Advaith Menon, Anish Gajula, Lila Phonekeo
+ * @brief Control a ball on the uLCD with a Nav Switch.
+ */
+
+#define DOWNPIN  18
+#define LEFTPIN  19
+#define RIGHTPIN 9
+#define FIREPIN  20
+#define UPPIN    21
+#define DEFAULT_VCC 22
+#define RESETLINE 23
+
+#define C_DEFAULT   0
+#define DIR_N 0x01
+#define DIR_X 0x02
+#define DIR_W 0x04
+#define DIR_S 0x08
+#define DIR_E 0x10
+
+#define CIR_STARTX 64
+#define CIR_STARTY 64
+#define CIR_RADIUS 20
+
+#define MOTION_XRANGE 128
+#define MOTION_YRANGE 128
+#define MOTION_DELTA 5
+
+#define PIN_TX 16
+#define PIN_RX 17
+
+#define DIR_NE (DIR_N | DIR_E)
+#define DIR_NW (DIR_N | DIR_W)
+#define DIR_SE (DIR_S | DIR_E)
+#define DIR_SW (DIR_S | DIR_W)
+
+
+#include <Arduino.h>
+#include "Goldelox_Serial_4DLib.h"
+#include "Goldelox_Const4D.h"
+
+Goldelox_Serial_4DLib Display(&Serial);
+
+uint8_t cir_x;
+uint8_t cir_y;
 
 void setup() {
+    Serial.begin(9600);
+    /* setup nav switch + to be high */
+    pinMode(DEFAULT_VCC, OUTPUT);
+    digitalWrite(DEFAULT_VCC, HIGH);
+
+
+    /* set up rest of the device */
+    pinMode(DOWNPIN, INPUT);
+    pinMode(LEFTPIN, INPUT);
+    pinMode(RIGHTPIN, INPUT);
+    pinMode(FIREPIN, INPUT);
+    pinMode(UPPIN, INPUT);
+    pinMode(RESETLINE, OUTPUT);
+
+    digitalWrite(RESETLINE, 0);  // Reset the Display via D4
+    delay(500);
+    digitalWrite(RESETLINE, 1);  // unReset the Display via D4
+    delay(500);
+
+    // Display.setbaudWait(BAUD_9600);
+    Serial.begin(9600, SERIAL_8N1, PIN_RX, PIN_TX);
+    // Display.setbaudWait(BAUD_9600);
+    Display.gfx_Cls();
+    cir_x = CIR_STARTX;
+    cir_y = CIR_STARTY;
+    Display.gfx_CircleFilled(cir_x, cir_y, CIR_RADIUS, BLUE);
 }
 
 void loop() {
+    uint8_t i;
+
+
+    /* get the input value as bit flags */
+    i = C_DEFAULT;
+    if (digitalRead(DOWNPIN) == LOW)
+        i |= DIR_S;
+    if (digitalRead(LEFTPIN) == LOW)
+        i |= DIR_W;
+    if (digitalRead(RIGHTPIN) == LOW)
+        i |= DIR_E;
+    if (digitalRead(FIREPIN) == LOW)
+        i |= DIR_X;
+    if (digitalRead(UPPIN) == LOW)
+        i |= DIR_N;
+
+    if (i)
+        Display.gfx_CircleFilled(cir_x, cir_y, CIR_RADIUS, BLACK);
+
+    if (i & DIR_N) cir_y = (cir_y + MOTION_DELTA > MOTION_YRANGE - CIR_RADIUS)
+        ? cir_y
+        : cir_y + MOTION_DELTA;
+    if (i & DIR_E) cir_x = (cir_x + MOTION_DELTA > MOTION_XRANGE - CIR_RADIUS)
+        ? cir_x
+        : cir_x + MOTION_DELTA;
+    if (i & DIR_W) cir_x = (cir_x - MOTION_DELTA <= CIR_RADIUS)
+        ? cir_x
+        : cir_x - MOTION_DELTA;
+    if (i & DIR_S) cir_y = (cir_y - MOTION_DELTA <= CIR_RADIUS)
+        ? cir_y
+        : cir_y - MOTION_DELTA;
+
+    /* draw circle */
+    if (i)
+        Display.gfx_CircleFilled(cir_x, cir_y, CIR_RADIUS, BLUE);
+
+    /* update ball position */
+    /*
+    Display.txt_MoveCursor(5,3);
+    Display.putstr("  ");
+    Display.txt_MoveCursor(5,3);
+    if (i & DIR_N) Display.putstr("N");
+    if (i & DIR_E) Display.putstr("E");
+    if (i & DIR_S) Display.putstr("S");
+    if (i & DIR_W) Display.putstr("W");
+    if (i & DIR_X) Display.putstr("X");
+    */
+
 }