PolyCraft/kiln-controller
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Tanaes 2022-01-08 19:05:02 -05:00
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config.py
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@ -32,6 +32,13 @@ currency_type = "$" # Currency Symbol to show when calculating cost to run j
gpio_heat = 23 # Switches zero-cross solid-state-relay
gpio_e_relay = 27 # pin 13; emergency cutoff relay
# Note: `gpio_e_relay` is used to and a redundant mechanical relay in series with
# the SSR. Because SSRs normally fail closed (i.e. energized), this provides a
# way for the controller to shut off the kiln in the event that the SSR fails.
# It is designed to be used with the SSR input connected to the safety relay's
# Normally Open (NC) output; thus, the kiln can only heat when the RPi has
# energized the safety relay.
### Thermocouple Adapter selection:
# max31855 - bitbang SPI interface
# max31856 - bitbang SPI interface. must specify thermocouple_type.