c5b7f21044
- simulation more accurate - added kiln_must_catch_up functionality - added max31856 support
100 lines
3.5 KiB
Python
100 lines
3.5 KiB
Python
import logging
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from lib.max31856 import MAX31856
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########################################################################
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#
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# General options
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### Logging
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log_level = logging.INFO
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log_format = '%(asctime)s %(levelname)s %(name)s: %(message)s'
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### Server
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listening_ip = "0.0.0.0"
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listening_port = 8081
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### Cost Estimate
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kwh_rate = 0.1319 # Rate in currency_type to calculate cost to run job
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currency_type = "$" # Currency Symbol to show when calculating cost to run job
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########################################################################
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#
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# GPIO Setup (BCM SoC Numbering Schema)
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#
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# Check the RasPi docs to see where these GPIOs are
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# connected on the P1 header for your board type/rev.
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# These were tested on a Pi B Rev2 but of course you
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# can use whichever GPIO you prefer/have available.
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### Outputs
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gpio_heat = 23 # Switches zero-cross solid-state-relay
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### Thermocouple Adapter selection:
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# max31855 - bitbang SPI interface
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# max31856 - bitbang SPI interface. must specify thermocouple_type.
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max31855 = 1
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max31856 = 0
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# see lib/max31856.py for other thermocouple_type, only applies to max31856
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thermocouple_type = MAX31856.MAX31856_S_TYPE
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### Thermocouple Connection (using bitbang interfaces)
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gpio_sensor_cs = 27
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gpio_sensor_clock = 22
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gpio_sensor_data = 17
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### duty cycle of the entire system in seconds. Every N seconds a decision
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### is made about switching the relay[s] on & off and for how long.
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### The thermocouple is read five times during this period and the highest
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### value is used.
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sensor_time_wait = 1
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########################################################################
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#
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# PID parameters
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pid_kp = 25 # Proportional
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pid_ki = 1088 # Integration
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pid_kd = 217 # Derivative was 217
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########################################################################
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#
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# Simulation parameters
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simulate = True
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sim_t_env = 25.0 # deg C
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sim_c_heat = 100.0 # J/K heat capacity of heat element
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sim_c_oven = 5000.0 # J/K heat capacity of oven
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sim_p_heat = 5450.0 # W heating power of oven
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sim_R_o_nocool = 1.0 # K/W thermal resistance oven -> environment
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sim_R_o_cool = 0.05 # K/W " with cooling
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sim_R_ho_noair = 0.1 # K/W thermal resistance heat element -> oven
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sim_R_ho_air = 0.05 # K/W " with internal air circulation
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########################################################################
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#
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# Time and Temperature parameters
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temp_scale = "f" # c = Celsius | f = Fahrenheit - Unit to display
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time_scale_slope = "h" # s = Seconds | m = Minutes | h = Hours - Slope displayed in temp_scale per time_scale_slope
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time_scale_profile = "m" # s = Seconds | m = Minutes | h = Hours - Enter and view target time in time_scale_profile
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# emergency shutoff the kiln if this temp is reached.
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# when solid state relays fail, they usually fail closed. this means your
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# kiln receives full power until your house burns down.
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# this should not replace you watching your kiln or use of a kiln-sitter
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emergency_shutoff_temp = 2264 #cone 7
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# If the kiln cannot heat fast enough and is off by more than
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# kiln_must_catch_up_max_error the entire schedule is shifted until
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# the desired temperature is reached. If your kiln cannot attain the
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# wanted temperature, the schedule will run forever.
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kiln_must_catch_up = True
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kiln_must_catch_up_max_error = 10 #degrees
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# thermocouple offset
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# If you put your thermocouple in ice water and it reads 36F, you can
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# set set this offset to -4 to compensate. This probably means you have a
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# cheap thermocouple. Invest in a better thermocouple.
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thermocouple_offset=0
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