add Counter/Timer model 1772 module

src/modules/puzzle_counter_timer_model_1772/doc/index.md

@@ -0,0 +1,20 @@
+# counter_timer_model_1772
+
+Schrijf de handleiding voor je module hier. Kijk gerust naar de handleiding
+voor de "Doolhof"-module (`src/modules/puzzle_maze/doc/index.md`)
+
+
+Hieronder wat voorbeelden van markup die je kan gebruiken. Daarnaast kan je ook LaTeX
+gebruiken (zie bijvoorbeeld de "Doolhof"-module)
+
+Use drawings! Create the docs/images/your_module directory, put your image there and include them like this:
+
+![](./your_module/filename.png)
+
+Use tables! Write them like this:
+
+| Symbol                         | Action to take |
+|--------------------------------|----------------|
+| ![](./your_module/symbol1.png) | Do nothing     |
+| ![](./your_module/symbol2.png) | Press the red button |
+| ![](./your_module/symbol3.png) | Press the yellow button |

src/modules/puzzle_counter_timer_model_1772/lcd_control.cpp

@@ -0,0 +1,90 @@
+//
+// lcd_control.c
+//
+
+#include "lcd_control.h"
+
+#include <LedControl.h>
+
+#define LED_PIN_DIN 2 // Data In (MOSI)
+#define LED_PIN_CS  3 // Chip Select
+#define LED_PIN_CLK 5 // Clock
+
+LedControl lcd = LedControl(LED_PIN_DIN, LED_PIN_CLK, LED_PIN_CS, 1);
+
+byte LCD_STATE[6] = {B00000000, B00000000, B00000000, B00000000, B00000000, B00000000};
+uint8_t segment_map[7] = {0, 1, 3, 4, 5, 6, 7};
+byte character_map[10] = {B01111110,B00110000,B01101101,B01111001,B00110011,B01011011,B01011111,B01110000,B01111111,B01111011};
+
+void lcd_draw() {
+	uint8_t digit_state;
+	for (int i=0; i<6; i++) {
+		digit_state = LCD_STATE[i];
+
+		for (int j=6; j>=0; j--) {
+			// Map j to missing-solder-pad adjusted value
+			// i + 1 because only digits 1-6 of possible 0-7 are used
+			// continually read the last digit of digit_state and shift it over by one
+			lcd.setLed(0, segment_map[j], i + 1, digit_state % 2);
+			digit_state = digit_state >> 1;
+		}
+	}
+}
+
+void lcd_set_digit(uint8_t digit, uint8_t segments) {
+	LCD_STATE[digit] = segments;
+
+	lcd_draw();
+}
+
+void lcd_set_display(uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6) {
+	LCD_STATE[0] = d1;
+	LCD_STATE[1] = d2;
+	LCD_STATE[2] = d3;
+	LCD_STATE[3] = d4;
+	LCD_STATE[4] = d5;
+	LCD_STATE[5] = d6;
+
+	lcd_draw();
+}
+
+uint8_t lcd_print_number(int32_t num) {
+	if (num < -99999 || num > 999999) {
+		return 1;
+	}
+
+	// Normally leading zeroes will be ignored,
+	// but if the number is exactly zero it should be printed
+	if (num == 0) {
+		lcd_set_digit(5, B01111110);
+		return 0;
+	}
+
+	bool negative = false;
+	if (num < 0) {
+		negative = true;
+
+		// Change from negative to positive in two's complement
+		// Faster than doing num * -1
+		num = num ^ 0xFFFFFFFF;
+		num = num + 1;
+	}
+
+	uint8_t index;
+	for (int8_t i=5; i>=0; i--) {
+		// Continually read the last decimal and then shift
+		// num over by one decimal
+		LCD_STATE[i] = character_map[num % 10];
+		num /= 10;
+
+		index = i;
+		if (num == 0) break;
+	}
+
+	// Draw a minus symbol if the number was negative
+	if (negative) LCD_STATE[index - 1] = B00000001;
+
+	lcd_draw();
+
+	return 0;
+}

src/modules/puzzle_counter_timer_model_1772/lcd_control.h

@@ -0,0 +1,51 @@
+//
+// lcd_control.h
+//
+
+#include <LedControl.h>
+
+#ifndef LCD_CONTROL_H
+#define LCD_CONTROL_H
+
+// Main LCD controller
+extern LedControl lcd;
+
+// What will be printed on the next call of lcd_draw()
+// The digits of each binary number represent the following segments (first digit unused)
+//  B0 x x x x x x x
+//     A B C D E F G
+// With each segment being positioned as follows:
+//   A
+// F   B
+//   G
+// E   C
+//   D
+extern byte LCD_STATE[6];
+
+// Maps segment indices (A=0, B=1, ...) to their 'correct' hardware indices
+// (pin 2 got its solder pad torn off :<)
+extern uint8_t segment_map[7];
+
+// Which segments to light up for each number from 0 to 9
+// Indices correspond to their numbers
+extern byte character_map[10];
+
+// Writes the current value of LCD_STATE to the lcd
+void lcd_draw();
+
+// Set a single digit on the LCD
+void lcd_set_digit(uint8_t digit, uint8_t segments);
+
+// Set every digit on the LCD
+void lcd_set_display(uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6);
+
+// Print a number to the LCD
+//
+// num should be in [-99999; 999999] (the display only has 6 digits)
+//
+// Exit codes:
+// - 0: success
+// - 1: num was out of bounds
+uint8_t lcd_print_number(int32_t num);
+
+#endif

src/modules/puzzle_counter_timer_model_1772/puzzle_counter_timer_model_1772.ino

@@ -0,0 +1,36 @@
+// (c) 2022, Tibo Ulens
+// See the LICENSE file for conditions for copying
+
+#include <obus_module.h>
+#include <LedControl.h>
+
+#include "lcd_control.h"
+
+#define OBUS_PUZZLE_ID 2
+
+void setup() {
+	Serial.begin(115200);
+
+	lcd.shutdown(0, false);
+	lcd.setIntensity(0, 15); // 0: dimmest, 15: brightest
+	lcd.clearDisplay(0);
+
+	lcd_print_number(987654);
+
+	// Puzzle: a module that must be solved
+	obus_module::setup(OBUS_TYPE_PUZZLE, OBUS_PUZZLE_ID);
+}
+
+obus_can::message message;
+
+void loop() {
+	bool is_message_valid = obus_module::loopPuzzle(&message, callback_game_start, callback_game_stop);
+}
+
+void callback_game_start(uint8_t message) {
+
+}
+
+void callback_game_stop() {
+
+}