RK3399 series mainboards and core boards support dual screens with different display, dual touch and dual audio, that is, a mainboard can be connected to two screens at the same time, and they can play different things, output different audio, and support dual screen touch. HDMI, DP screens are supported.



1. Firefly-RK3399

2. HDMI touch screen

3. DP touch screen



1. Flash the ROM to the mainboard. Refer to  Upgrade the firmware on Wiki.

2. Connect the mainboard to power, HDMI touch screen and DP touch screen.

3. Open DoubleScreen app.



It is widely used in scenarios such as smart advertising machines, entertainment equipment, multi-screen interaction, smart home, multimedia equipment.


ROM download


Firefly-RK3399 ROM (Code: s1tm)