The ATM0350D21 is a 3.5" TFT color LCD module from AZ Displays. It has a resolution of 320 x 240 and 110ppi and can display up to 16.7 million colors. It features a white LED backlight and has a 4-wire resistive touchscreen. It has a brightness rating of 250 nits, a contrast ratio of 400, a viewing angle of 160°, and an operating temperature of -20° to +70°C. It is compatible with multiple systems, such as Arduino, Raspberry Pi, and Windows 10 and supports various HDMI, VGA, and CVBS interfaces.