Added TinkerCAD links and two new examples - 2 I2C slaves and LCD scrolling texts

diff --git a/Examples/3x3-LED_BTN-Matrix-Transpose/tinkercad_link.txt b/Examples/3x3-LED_BTN-Matrix-Transpose/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..25a297f
--- /dev/null
+++ b/Examples/3x3-LED_BTN-Matrix-Transpose/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/bJ9mxNp3wXG

diff --git a/Examples/7-segm_bidirectional_counter/tinkercad_link.txt b/Examples/7-segm_bidirectional_counter/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..03bf407
--- /dev/null
+++ b/Examples/7-segm_bidirectional_counter/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/kQ6afgEqekR

diff --git a/Examples/7-segm_byte_display/7-segm_byte_display.png b/Examples/7-segm_byte_display/7-segm_byte_display.png
new file mode 100644 (file)
index 0000000..69c7efe
Binary files /dev/null and b/Examples/7-segm_byte_display/7-segm_byte_display.png differ

diff --git a/Examples/7-segm_byte_display/tinkercad_link.txt b/Examples/7-segm_byte_display/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..b34ead0
--- /dev/null
+++ b/Examples/7-segm_byte_display/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/aHW3wNDugHU

diff --git a/Examples/7-segm_driver/tinkercad_link.txt b/Examples/7-segm_driver/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..db5e83d
--- /dev/null
+++ b/Examples/7-segm_driver/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/kaVhIKUgeAY

diff --git a/Examples/7-segm_driver_random/7-segm_driver_random.ino b/Examples/7-segm_driver_random/7-segm_driver_random.ino
new file mode 100644 (file)
index 0000000..075efc3
--- /dev/null
+++ b/Examples/7-segm_driver_random/7-segm_driver_random.ino
@@ -0,0 +1,85 @@
+#include <stdlib.h>
+
+#define DATA1_PIN              12
+#define DATA2_PIN              5
+#define DATA3_PIN              4
+#define DATA4_PIN              13
+#define LATCH0_PIN             11
+#define LATCH1_PIN             9
+#define LATCH2_PIN             8
+#define LATCH3_PIN             7
+#define LATCH4_PIN             6
+#define LATCH5_PIN             A5
+#define BLANKING_PIN   10
+
+#define BUTTON_PIN             3
+#define POT_PIN                        A4
+#define NC_PIN                 A3
+
+#define DIGITS                 6
+#define BRIGHTNESS             200             // Maximum 255
+
+const uint8_t data_pins[4] = {DATA1_PIN, DATA2_PIN, DATA3_PIN, DATA4_PIN};
+const uint8_t latch_pins[DIGITS] = {LATCH0_PIN, LATCH1_PIN, LATCH2_PIN, LATCH3_PIN, LATCH4_PIN, LATCH5_PIN};
+
+volatile uint32_t current_value = 0;
+
+void button_ISR(void);
+void print_7segm(uint32_t val);
+
+void setup()
+{
+       Serial.begin(9600);
+
+       pinMode(NC_PIN, INPUT);
+       srand(analogRead(NC_PIN));
+
+       for (uint8_t i = 0; i < 4; i++)
+       {
+               pinMode(data_pins[i], OUTPUT);
+               digitalWrite(data_pins[i], LOW);
+       }
+       for (uint8_t i = 0; i < DIGITS; i++)
+       {
+               pinMode(latch_pins[i], OUTPUT);
+               digitalWrite(latch_pins[i], HIGH);
+       }
+       pinMode(BUTTON_PIN, INPUT_PULLUP);
+       attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), button_ISR, FALLING);
+       pinMode(BLANKING_PIN, OUTPUT);
+       digitalWrite(BLANKING_PIN, HIGH);
+}
+
+void loop()
+{
+       print_7segm(current_value);
+       delay(100);
+}
+
+void button_ISR(void)
+{
+       current_value = rand();
+       current_value |= ((uint32_t) rand() << 16);
+       Serial.print(current_value);
+}
+
+void print_7segm(uint32_t val)
+{
+       uint8_t i, j;
+       uint8_t digit;
+       
+       for (i = 0; i < DIGITS; i++)
+       {
+               digit = val % 10;
+               val /= 10;
+               
+               for (j = 0; j < 4; j++)
+               {
+                       digitalWrite(data_pins[j], digit & (1 << j));
+               }
+               digitalWrite(latch_pins[DIGITS - i - 1], LOW);
+               delay(1);
+               digitalWrite(latch_pins[DIGITS - i - 1], HIGH);
+               delay(1);
+       }
+}

diff --git a/Examples/7-segm_driver_random/7-segm_driver_random.png b/Examples/7-segm_driver_random/7-segm_driver_random.png
new file mode 100644 (file)
index 0000000..e23e584
Binary files /dev/null and b/Examples/7-segm_driver_random/7-segm_driver_random.png differ

diff --git a/Examples/7-segm_driver_random/tinkercad_link.txt b/Examples/7-segm_driver_random/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..2d132b6
--- /dev/null
+++ b/Examples/7-segm_driver_random/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/3GNvrtWwhQc

diff --git a/Examples/7-segm_raw/tinkercad_link.txt b/Examples/7-segm_raw/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..2e99b79
--- /dev/null
+++ b/Examples/7-segm_raw/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/a091SYpyBV8

diff --git a/Examples/7-segm_raw_dynamic/tinkercad_link.txt b/Examples/7-segm_raw_dynamic/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..c24692b
--- /dev/null
+++ b/Examples/7-segm_raw_dynamic/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/7eGYywVu5PG

diff --git a/Examples/Car_dodge/Car_dodge.ino b/Examples/Car_dodge/Car_dodge.ino
index 6925a5e1d1faa9627833085357bfa979b75dff78..b9ff517b132098fb1fffae2e2582d1353b7d9543 100644 (file)
--- a/Examples/Car_dodge/Car_dodge.ino
+++ b/Examples/Car_dodge/Car_dodge.ino
@@ -114,6 +114,7 @@ void loop()
     }
     
     // render the image
+    // Note: this was originally made for a couple of younger kids who hadn't learned about switch-case yet
     for (i = 0; i < NUM_PIXELS; i++)
     {
         if (vram[0][i] == EMPTY)

diff --git a/Examples/Car_dodge/tinkercad_link.txt b/Examples/Car_dodge/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..552eb44
--- /dev/null
+++ b/Examples/Car_dodge/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/0J1F6FpWf9y

diff --git a/Examples/DC_motor_and_servo/tinkercad_link.txt b/Examples/DC_motor_and_servo/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..73e9207
--- /dev/null
+++ b/Examples/DC_motor_and_servo/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/8ef4pvh4R76

diff --git a/Examples/I2C_2x_interrupt_to_master/I2C_2x_with interrupt_to_master.png b/Examples/I2C_2x_interrupt_to_master/I2C_2x_with interrupt_to_master.png
new file mode 100644 (file)
index 0000000..7fde137
Binary files /dev/null and b/Examples/I2C_2x_interrupt_to_master/I2C_2x_with interrupt_to_master.png differ

diff --git a/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_master/I2C_interrupt_to_master_master.ino b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_master/I2C_interrupt_to_master_master.ino
new file mode 100644 (file)
index 0000000..faf3130
--- /dev/null
+++ b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_master/I2C_interrupt_to_master_master.ino
@@ -0,0 +1,82 @@
+#include <Wire.h>
+
+#define INT_SLAVE1_PIN 3
+#define INT_SLAVE2_PIN 2
+
+#define SLAVE1_ADDRESS 0x09
+#define SLAVE2_ADDRESS 0x0A
+
+size_t i2c_write(uint8_t address, void *data, size_t size);
+size_t i2c_read(uint8_t address, void *data, size_t size);
+void slave1_interrupt(void);
+void slave2_interrupt(void);
+
+volatile bool new_data1 = false;
+volatile bool new_data2 = false;
+
+void setup()
+{
+       Wire.begin();
+       Serial.begin(9600);
+       pinMode(INT_SLAVE1_PIN, INPUT);
+       pinMode(INT_SLAVE2_PIN, INPUT);
+       attachInterrupt(digitalPinToInterrupt(INT_SLAVE1_PIN), slave1_interrupt, RISING);
+       attachInterrupt(digitalPinToInterrupt(INT_SLAVE2_PIN), slave2_interrupt, RISING);
+}
+
+void loop()
+{
+       uint8_t dip_sw;
+
+       if (new_data1)
+       {
+               i2c_read(SLAVE1_ADDRESS, &dip_sw, sizeof(dip_sw));
+               Serial.print("From slave 1: ");
+               Serial.println(dip_sw);
+               new_data1 = false;
+       }
+       if (new_data2)
+       {
+               i2c_read(SLAVE2_ADDRESS, &dip_sw, sizeof(dip_sw));
+               Serial.print("From slave 2: ");
+               Serial.println(dip_sw);
+               new_data2 = false;
+       }
+}
+
+size_t i2c_write(uint8_t address, void *data, size_t size)
+{
+       int error_code;
+       size_t bytes_written;
+
+       Wire.beginTransmission(address);
+       bytes_written = Wire.write((uint8_t *) data, size);
+       error_code =  Wire.endTransmission();
+
+       return error_code ? 0: bytes_written;
+}
+
+size_t i2c_read(uint8_t address, void *data, size_t size)
+{
+       size_t bytes_received = Wire.requestFrom(address, size);
+
+       if (bytes_received == size)
+       {
+               for (size_t i = 0; i < size; i++)
+               {
+                       ((uint8_t *) data)[i] = Wire.read();
+               }
+       }
+
+       return bytes_received;
+}
+
+void slave1_interrupt(void)
+{
+       new_data1 = true;
+}
+
+void slave2_interrupt(void)
+{
+       new_data2 = true;
+}
\ No newline at end of file

diff --git a/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave1/I2C_interrupt_to_master_slave1.ino b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave1/I2C_interrupt_to_master_slave1.ino
new file mode 100644 (file)
index 0000000..4beb9d5
--- /dev/null
+++ b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave1/I2C_interrupt_to_master_slave1.ino
@@ -0,0 +1,61 @@
+#include <Wire.h>
+
+#define MASTER_INT_PIN A2
+#define INT_PIN        3
+#define SW0_PIN        7
+#define SW1_PIN        6
+#define SW2_PIN        5
+#define SW3_PIN        4
+
+#define SLAVE_ADDRESS  0x09
+
+void i2c_send_handler(void);
+void button_handler(void);
+
+volatile uint8_t dip_sw = 0;
+volatile bool new_data = false;
+
+void setup()
+{
+       pinMode(MASTER_INT_PIN, OUTPUT);
+       digitalWrite(MASTER_INT_PIN, LOW);
+       pinMode(INT_PIN, INPUT_PULLUP);
+       pinMode(SW0_PIN, INPUT_PULLUP);
+       pinMode(SW1_PIN, INPUT_PULLUP);
+       pinMode(SW2_PIN, INPUT_PULLUP);
+       pinMode(SW3_PIN, INPUT_PULLUP);
+
+       attachInterrupt(digitalPinToInterrupt(INT_PIN), button_handler, FALLING);
+
+       Wire.begin(SLAVE_ADDRESS);
+       Wire.onRequest(i2c_send_handler);
+
+       Serial.begin(9600);
+}
+
+void loop()
+{
+       uint8_t tmp = digitalRead(SW0_PIN) |
+                                (digitalRead(SW1_PIN) << 1) |
+                                (digitalRead(SW2_PIN) << 2) |
+                                (digitalRead(SW3_PIN) << 3);
+       dip_sw = tmp;
+       if (new_data)
+       {
+               new_data = false;
+               digitalWrite(MASTER_INT_PIN, HIGH);
+               delayMicroseconds(5);
+               digitalWrite(MASTER_INT_PIN, LOW);
+               delayMicroseconds(5);
+       }
+}
+
+void i2c_send_handler(void)
+{
+       Wire.write((uint8_t *) &dip_sw, sizeof(dip_sw));
+}
+
+void button_handler(void)
+{
+       new_data = true;
+}

diff --git a/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave2/I2C_interrupt_to_master_slave2.ino b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave2/I2C_interrupt_to_master_slave2.ino
new file mode 100644 (file)
index 0000000..531d888
--- /dev/null
+++ b/Examples/I2C_2x_interrupt_to_master/I2C_interrupt_to_master_slave2/I2C_interrupt_to_master_slave2.ino
@@ -0,0 +1,61 @@
+#include <Wire.h>
+
+#define MASTER_INT_PIN A2
+#define INT_PIN        3
+#define SW0_PIN        7
+#define SW1_PIN        6
+#define SW2_PIN        5
+#define SW3_PIN        4
+
+#define SLAVE_ADDRESS  0x0A
+
+void i2c_send_handler(void);
+void button_handler(void);
+
+volatile uint8_t dip_sw = 0;
+volatile bool new_data = false;
+
+void setup()
+{
+       pinMode(MASTER_INT_PIN, OUTPUT);
+       digitalWrite(MASTER_INT_PIN, LOW);
+       pinMode(INT_PIN, INPUT_PULLUP);
+       pinMode(SW0_PIN, INPUT_PULLUP);
+       pinMode(SW1_PIN, INPUT_PULLUP);
+       pinMode(SW2_PIN, INPUT_PULLUP);
+       pinMode(SW3_PIN, INPUT_PULLUP);
+
+       attachInterrupt(digitalPinToInterrupt(INT_PIN), button_handler, FALLING);
+
+       Wire.begin(SLAVE_ADDRESS);
+       Wire.onRequest(i2c_send_handler);
+
+       Serial.begin(9600);
+}
+
+void loop()
+{
+       uint8_t tmp = digitalRead(SW0_PIN) |
+                                (digitalRead(SW1_PIN) << 1) |
+                                (digitalRead(SW2_PIN) << 2) |
+                                (digitalRead(SW3_PIN) << 3);
+       dip_sw = tmp;
+       if (new_data)
+       {
+               new_data = false;
+               digitalWrite(MASTER_INT_PIN, HIGH);
+               delayMicroseconds(5);
+               digitalWrite(MASTER_INT_PIN, LOW);
+               delayMicroseconds(5);
+       }
+}
+
+void i2c_send_handler(void)
+{
+       Wire.write((uint8_t *) &dip_sw, sizeof(dip_sw));
+}
+
+void button_handler(void)
+{
+       new_data = true;
+}

diff --git a/Examples/I2C_2x_interrupt_to_master/tinkercad_link.txt b/Examples/I2C_2x_interrupt_to_master/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..8d653c8
--- /dev/null
+++ b/Examples/I2C_2x_interrupt_to_master/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/78jf9y1YodC

diff --git a/Examples/I2C_interrupt_to_master/tinkercad_link.txt b/Examples/I2C_interrupt_to_master/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..ba291d4
--- /dev/null
+++ b/Examples/I2C_interrupt_to_master/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/bEpoUSShgaZ

diff --git a/Examples/I2C_simple_demo/tinkercad_link.txt b/Examples/I2C_simple_demo/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..019b53b
--- /dev/null
+++ b/Examples/I2C_simple_demo/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/b5ZB55WFaxX

diff --git a/Examples/LCD_bidirectional_counter/tinkercad_link.txt b/Examples/LCD_bidirectional_counter/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..1e90ecc
--- /dev/null
+++ b/Examples/LCD_bidirectional_counter/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/d6absXaO0GD

diff --git a/Examples/LCD_scroll/tinkercad_link.txt b/Examples/LCD_scroll/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..77fb869
--- /dev/null
+++ b/Examples/LCD_scroll/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/ecuRyTU9AaJ

diff --git a/Examples/LCD_scroll_multiple/LCD_scroll_multiple.ino b/Examples/LCD_scroll_multiple/LCD_scroll_multiple.ino
new file mode 100644 (file)
index 0000000..b101089
--- /dev/null
+++ b/Examples/LCD_scroll_multiple/LCD_scroll_multiple.ino
@@ -0,0 +1,76 @@
+#include <LiquidCrystal.h>
+#include <string.h>
+
+#define RS     12
+#define EN     11
+#define D4     5
+#define D5     4
+#define D6     3
+#define D7     2
+
+#define COLS 16
+#define ROWS 2
+
+char *text[] =
+{
+       "LOREM IPSUM",
+       "qwertyuiop[",
+       "the quick brown fox jumped over the lazy dog"
+};
+
+LiquidCrystal LCD_screen(RS, EN, D4, D5, D6, D7);
+
+void setup()
+{
+       LCD_screen.begin(COLS, ROWS);
+       LCD_screen.clear();
+}
+
+void loop()
+{
+       uint8_t text_n;
+       int8_t position;
+       uint16_t i, j;
+       uint16_t l;
+       uint16_t print_size;
+       
+       // Not necesarily the best implementation, feel free to submit a PR
+       for (text_n = 0; text_n < 3; text_n++)
+       {
+               l = strlen(text[text_n]);
+
+               for (position = COLS - 1; position >= 0; position--)
+               {
+                       LCD_screen.setCursor(position, 0);
+                       print_size = l;
+                       if (print_size > COLS - position)
+                       {
+                               print_size = COLS - position;
+                       }
+                       for (i = 0; i < print_size; i++)
+                       {
+                               LCD_screen.write(text[text_n][i]);
+                       }
+                       delay(200);
+                       LCD_screen.clear();
+               }
+
+               for (j = 0; j < l; j++)
+               {
+                       print_size = l - j;
+                       if (print_size > COLS)
+                       {
+                               print_size = COLS;
+                       }
+                       for (i = 0; i < print_size; i++)
+                       {
+                               LCD_screen.write(text[text_n][j + i]);
+                       }
+                       delay(200);
+                       LCD_screen.clear();
+               }
+
+               delay(500);
+       }
+}
+ 

diff --git a/Examples/LCD_scroll_multiple/LCD_scroll_multiple.png b/Examples/LCD_scroll_multiple/LCD_scroll_multiple.png
new file mode 100644 (file)
index 0000000..74180c4
Binary files /dev/null and b/Examples/LCD_scroll_multiple/LCD_scroll_multiple.png differ

diff --git a/Examples/LCD_scroll_multiple/tinkercad_link.txt b/Examples/LCD_scroll_multiple/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..2770292
--- /dev/null
+++ b/Examples/LCD_scroll_multiple/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/des9SoAMtAC

diff --git a/Examples/TUES-LED_strip_1/tinkercad_link.txt b/Examples/TUES-LED_strip_1/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..e186c83
--- /dev/null
+++ b/Examples/TUES-LED_strip_1/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/4uzv4lu12yT

diff --git a/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/tinkercad_link.txt b/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..a0b579d
--- /dev/null
+++ b/Examples/Timer_1_COMPA_and_OVF_10kHz_PWM/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/c8JLkjplQKy

diff --git a/Examples/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/tinkercad_link.txt b/Examples/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..aa75c78
--- /dev/null
+++ b/Examples/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/abCdiMvkJs6

diff --git a/Examples/external_interrupt/tinkercad_link.txt b/Examples/external_interrupt/tinkercad_link.txt
new file mode 100644 (file)
index 0000000..5ba87ee
--- /dev/null
+++ b/Examples/external_interrupt/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/b8qUgr1Egv0