Demo:
https://www.youtube.com/watch?v=TqSY6FETuos

Compiling in Arduino IDE:

1. Download all files
2. copy "arduino/lib/LiveOV7670Library" and "arduino/lib/Adafruit_GFX_Library" to Arduino "libraries" folder (If you already have "Adafruit_GFX_Library" then you don't have to copy that)
3. Rename "arduino/src" folder to "LiveOV7670"
4. Open "LiveOV7670.ino" in Arduino IDE
5. Select Tools->Board->Arduino Nano

https://raw.githubusercontent.com/indrekluuk/LiveOV7670/master/LiveOV7670.png

OV7670 connections:

VSYNC - PIN2
XCLCK - PIN3 (must be level shifted from 5V -> 3.3V)
PCLCK - PIN12
SIOD - A4 (I2C data) - 10K resistor to 3.3V
SIOC - A5 (I2C clock) - 10K resistor to 3.3V
D0..D3 - A0..A3 (pixel data bits 0..3)
D4..D7 - PIN4..PIN7 (pixel data bits 4..7)
3.3V - 3.3V
RESET - 3.3V
GND - GND
PWDN - GND

1.8" TFT connections:

DC - PIN 8 (5V -> 3.3V)
CS - PIN 9 (5V -> 3.3V)
RESET - PIN 10 (5V -> 3.3V)
SPI data - PIN 11 (5V -> 3.3V)
SPI clock - PIN 13 (5V -> 3.3V)
VCC - 5V/3.3V (depending on jumper position on the TFT board)
BL - 3.3V
GND - GND

Special thanks to https://github.com/ComputerNerd/ov7670-no-ram-arduino-uno