# pinHP Arcade Image

Quadro Jumbo

Quadro Jumbo auto monitor rotation


How to connect a  Quadro Jumbo to Pi2Jamma for auto monitor rotation with pinHP image.

Requirements: A 5 V DC single channel relay.

How it works: Quadro's monitor rotation is set by a simple hardware ON/OFF switch on the control board. As long as the switch is OFF, the monitor is kept in horizontal position or turned there, and vice versa. The switching is now taken over by a relay, controlled from pinHP image via e.g. GPIO-26, by setting auto_rotate=26 in config.ini. Available free GPIO pins are 0 | 1 | 25 | 26 | 27 for Pi2Jamma. Setting auto_rotate=-1 disables auto rotation.

Auto rotation demonstration  video

Quadro_Relay

5 V single channel relay.

Quadro_01

The relay is installed between Pi2Jamma and Quadro's control board.

Quadro_02

The control board's monitor orientation switch is in OFF position.

Quadro_03

Two wires are soldered to the back of the control board's monitor orientation switch, where two conductor tracks are connected. The third contact can be ignored - this is the original switch's OFF position, leading to nowhere.

Quadro_04

Wires from the control board connect to COM (white) and NO (red). Connecting to COM and NC instead would default the monitor to vertical position and the High/Low level trigger required to be set to "L".

Wires from Pi2Jamma connect to 5V/DC+ (red), GND/DC- (black), IN/SIG (purple).

Quadro_05

Pi2Jamma PCB: Wires from the relay, crimped to a DuPont plug, connect to 5V (red), GND (black), GPIO26 (purple).