LNSC-2420-Firmware/utils/config_dev.yaml

# Values for the development device

calibration:
  # Calibration factor defined here are divided by 1000 to determine the actual
  # scaling factor. Therefore, if the voltage determined by the firmware is 2%
  # lower than the actual voltage, you have to scale by 1.02 and therefore
  # specify 1020 in this list.
  CAL_FACTOR_U_BAT:     1012
  CAL_FACTOR_U_SOLAR:   1015
  CAL_FACTOR_U_SW:      1006
  CAL_FACTOR_I_SOLAR:   3980
  CAL_FACTOR_I_LOAD:    1000

config:
  # Thresholds for charging control

  # Battery regulation corridor width (in mV).
  U_BAT_REGULATION_CORRIDOR: 100

  # Initial charge battery voltage threshold (in mV).
  # stop charging if battery voltage reaches this threshold
  U_BAT_INITIAL_FULL: 28600

  # Cancel initial charge voltage hold below this battery voltage (in mV).
  U_BAT_INITIAL_HOLD_CANCEL: 27000

  # Transition to floating voltage levels after this time (in ms).
  INITIAL_CHARGE_HOLD_TIME: 1800000

  # Duration of the transistion from initial charging to float (in ms).
  INITIAL_TO_FLOAT_TRANSITION_TIME: 600000

  # Float charge battery voltage threshold (in mV).
  # stop charging if battery voltage reaches this threshold
  U_BAT_FLOAT_FULL: 27600

  # Minimum voltage difference to U_bat that the solar panels must produce
  # before charging is resumed after it was switched off (in mV).
  SLEEP_SOLAR_EXCESS_VOLTAGE: 1000

  # Minimum charge current required before charging is stopped to save power at
  # the charge pump (in mA).
  SLEEP_SOLAR_CURRENT: 1

  # Delay between state change and sleep state check (in ms).
  SLEEP_STATE_DELAY: 60000

  # Delay between charging switch state change and sleep state check(in ms).
  SLEEP_SWITCH_DELAY: 1000

  # Maximum allowed microcontroller temperature (in units of 0.1 °C). If this
  # temperature is exceeded, charging is stopped. The load is kept on. Do not
  # set this too high as the heat has to propagate from the power MOSFETs.
  INTERNAL_TEMPERATURE_LIMIT: 500

  # Resume operation below this temperature (in units of 0.1 °C).
  INTERNAL_TEMPERATURE_RECOVERY: 450

  # Minimum allowed external (BMP280) temperature (in units of 0.1 °C). If the
  # temperature falls below this value, charging is stopped to prevent damage to
  # the battery.
  EXTERNAL_TEMPERATURE_LIMIT: 250

  # Resume operation above this temperature (in units of 0.1 °C).
  EXTERNAL_TEMPERATURE_RECOVERY: 270


  # Thresholds for load control

  # Voltage above which the load is turned on (in mV).
  U_BAT_LOAD_ON: 27000
  # Voltage below which the load is turned off (in mV).
  U_BAT_LOAD_OFF: 24000

  # Current at which the overload protection triggers (in mA).
  LOAD_CURRENT_LIMIT_MA: 10000

  # Inrush tolerance time (in ms). Overload protection is not enforced for this
  # time after load power-on.
  LOAD_CURRENT_INRUSH_TIME: 10

  # Minimum voltage that the charge pump must produce above U_bat before any
  # power FET is switched on (in mV).
  MIN_CHARGE_PUMP_EXCESS_VOLTAGE: 10000

  # The minimum time the load must be off before it can be switched on again (in ms).
  LOAD_ON_DELAY: 10000


  # Measurement Averaging:
  # Alpha is specified in units of 1/1000. 1000 means that only the latest
  # value is relevant, 0 means that the measurement has no influence. The latter
  # is useless.
  #
  # The formula to calculate the next averaged value avg from a measurement meas is:
  # avg[k] = meas * (alpha/1000) + avg[k-1] * (1 alpha/1000)
  #
  # For overload protection (battery voltage, load current), the latest values
  # are always used.

  # Averaging factor for load current.
  AVG_ALPHA_I_SOLAR: 10
  AVG_ALPHA_I_LOAD: 10
  AVG_ALPHA_U_BAT: 100
  AVG_ALPHA_U_SW: 100
  AVG_ALPHA_U_SOLAR: 100
  AVG_ALPHA_TEMP: 10


  # Generic configuration

  # Time (in ms) to stay active in idle state before entering deep sleep.
  DEEPSLEEP_DELAY: 1000

  # Deep sleep duration (in seconds).
  DEEPSLEEP_DURATION: 10