7th Sense Delta Media Server - Pico GPIO Wiring and Commands

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Hardware Operation

Back / Rear Panel Connections

GPIO (PICO) COMMANDS

GPIO_ID

Flash the front LED green and orange to identify the server

GPIO pin state

Set the GPIO pin (1-4) to the desired state (0 = off, 1 = on)

GPIO bitwise

Set the GPIO pins to the desired bit pattern (0-255). 0 sets all

pins low, 248 sets all available pins high, 176 sets pins 2, 3 high

and 1, 4 low

GPIO_SET_INPUT pin

Set the GPIO pin (1-4) to be an input pin

GPIO_SET_OUTPUT pin

Set the GPIO pin (1-4) to be an output pin

Physical connections

Pico servers with opto-isolated GPIO (serial numbers above 4600)

These have their GPIO wired as below, with 3 × I/O opto-isolated connections.

Specification

Voltage triggered level switching IO

V (both Vcc and signal) max, 5 V. 3.3 V compliant so you can use either.

Min Vcc is 3 V.

I source 35 mA normal, 100 mA max.

Max 400 pF output impedance.

All data lines are weak pulled up to Vcc with 1 K resistors to allow for bidirectional switching.

Pico servers with non-opto-isolated GPIO (serial numbers prior to 4600)