work.txt

- Tužibaba
	SD Card Reader:
		- Example URL: https://lastminuteengineers.com/arduino-micro-sd-card-module-tutorial/
		- Note: Na URL-u se nalazi jedan SD citac (koji nije kao nas), ali ima sve iste pinove i isto se povezuje kao trenutni. 
			Na jednoj slici su prikazani kako su nazvani pinovi, a na drugoj slici kako se povezuju kojim redom.
			
	OV7670 Arduino camera:
		- Example URL: https://circuitdigest.com/microcontroller-projects/how-to-use-ov7670-camera-module-with-arduino
		- Requirements:
			- 2x 10K Ohm
			- 2x 4.7K Ohm
		
	DS1302 RTC Clock:
		- Example URL: https://electropeak.com/learn/interfacing-ds1302-real-time-clock-rtc-module-with-arduino/
		
	RC522 RFID Module:
		- Example URL: https://lastminuteengineers.com/how-rfid-works-rc522-arduino-tutorial/
		
		
Arduino UNO pin scheme:
https://www.circuito.io/blog/arduino-uno-pinout/
ATMEGA328P docs:
https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf

Something about PWM and xclk's:
https://forum.arduino.cc/t/arduino-1-mhz-2mhz-4mhz-8-mhz-clock-output/415947
https://arduino.stackexchange.com/questions/16698/arduino-constant-clock-output