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EXP-RELAY

class EXP

EXP(position, selectors)

Created an object for the expansion board connected to Zerynth ZM1 board at the position number, counting from left to right. Valid positions are 1 to 4. selectors is a tuple composed as in the following:

  1. Port Expansion (PE) address.
  2. Interrupt pin.

Once the EXP object is created, the expansion board can be used from the application by using the relay module.

Both values are integers from 0 to 3.

method relay_on

relay_on(rel)
Switch the specified relay COM to the NO (Normally Open).

  • rel is the RELAY to open.

method relay_off

relay_off(rel)
Switch the specified relay COM to the NC (Normally Closed).

  • rel is the RELAY to close.

method is_relay_on

is_relay_on(out)
Get the status of the specified RELAY.

  • out is the RELAY to check.

Return 1 if the RELAY is on. 0 otherwise.

method summary

summary()
Print the IO expansion summary on the console.

Example

from bsp import board
from expansions import relay
import gpio

board.init()
sel = (1,)
rel_e = board.next_expansion(relay,sel)

gpio.low(rel_e.OUT1)
gpio.low(rel_e.OUT2)
gpio.low(rel_e.OUT3)
gpio.low(rel_e.OUT4)
gpio.low(rel_e.OUT5)
gpio.low(rel_e.OUT6)