1. Robotics Research Laboratory Louisiana State University

2.  Microcontroller  AVR-C Atmel- ATMega128 – 8bit - PIN : 64 - Speed: 16 Mhz - Memory: 128KB-ISP, 4KB-EEPROM - Power Consumption : 0.2 W Variable Type - uint8_t, uint16_t, uint32_t, Char, int, double, float, array[], pointer* Condition / Loop - if (){}else{}, switch case - for (;;), while(){}, do()while{}

3.  Digital Port ◦ PORT A, C, G ◦ PORT B, D, E, F  Digital Output ◦ LED ◦ LED-Matrix ◦ Buzzer

4.  PORT A – digital in/out  PORT B – PWM/ISP (In System Programming)  PORT C – digital in/out  PORT D – Interrupt / UART1  PORT E – Interrupt/ PWM / UART0  PORT F – Analog to Digital  PORT G – digital in / out All ports can be configured for Digital in/out port

5.  LED control ◦ Turn ON: LED_ON ( COLOR ) ◦ Turn OFF: LED_OFF( COLOR ) ◦ Toggle : TOGGLE (COLOR_LED) ◦ Brightness –  more than 25 blinking per second, it looks keep on  Each blinking period adjust LED on/off time duration ◦ What does the abbreviation LED mean?

6.  The most common function of a diode is to allow an electric current to pass in one direction, while blocking current in the opposite direction ◦ Protect circuits from high voltage surges - Avalanche diodes ◦ Regulate voltage - Zener diodes ◦ Electronically tune radio and TV receivers - Varicap diodes ◦ Generate radio frequency oscillations - Tunnel diodes, Gunn diodes, IMPATT diodes ◦ Convert light into either current or voltage - Photodiode ◦ Produce light - Light Emitting Diodes (LED)

10. COL1COL2 COL3 ROW1 ROW2 ROW3 ROW1 ROW2 ROW3 COL1 COL2COL3

11. COL1COL2 COL3 ROW1 ROW2 ROW3 ONOFF ON COL1COL2 COL3 ROW1 ROW2 ROW3 OFFON OFF ON OFF ON COL1COL2 COL3 ROW1 ROW2 ROW3 OFF ON OFF 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9

12. COL1COL2 COL3 ROW1 ROW2 ROW3 13 5 7 9 2 46 8 3 5 7 9 2 46 8 1 13 5 7 9 2 46 8 13 5 7 9 2 46 8 4 13 5 7 9 2 6 8 13 5 7 9 2 46 8 13 5 7 9 2 46 8 13 5 7 9 2 46 8 1 5 7 9 2 46 8 3

13. COL1COL2 COL3 ROW1 ROW2 ROW3 2 3 4 5 6 7 8 9 1 ONOFF ON 2 3 4 6 7 8 1 OFF ON 2 3 4 6 7 8 OFF ON 2 3 4 6 7 89 5 9 5 1 1 5 9 Repeat this 25 times per second at least

14. COL1COL2 COL3 ROW1 ROW2 ROW3 2 3 4 5 6 7 8 9 1 COL1COL2 COL3 ROW1 ROW2 ROW3 3 46 79 1 2 5 8

15. COL1COL2 COL3 ROW1 ROW2 ROW3 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1

16.  3 * 3 LED matrix  5 * 7 LED matrix  8 * 8 LED matrix  1280 * 720 LED matrix ◦ if three colors(Red, Green, Blue) are in one LED dot SD – LED TV 1920 * 1020 (RGB)LED matrixHD – LED TV

17.  Buzzer – sound ◦ Tic- tac noise ◦ Siren ◦ Sound pitch control ◦ Song

18.  Make the animation in slide-15  (Bonus Point)Display “-GO_TIGER” on LED-Matrix  (Bonus Point) Make characters move from right to left - G O _ T I G E R -G O _ T I G E R S S

19.  There are two gates, one is for heaven and the other is for hell.  There are one angel and one devil, and we don’t know who angel is  The angel say always true but devil say always false  You have only one chance to ask one of them  How to figure out which gate is for heaven? 12 A B