rims-arduino-library changelog

v3.1.1

changes :

• Rims : increase default ADC filtering value for higly insulated RIMS (noisy)
• RimsTuner : increase max sample per period for slow RIMS (high insulation)

v3.1

changes :

• doc details
• possibility to insert code for a custom temperature probe
• examples change with the new setTempProbe arguments sturcture

v3.0

changes :

• added : RimsTuner, a robust PID auto-tuner for Rims based on Fourier analysis (more info in doc)
• added : RimsTuner basic example
• modified : library used SRAM shrinked by inserting strings letterals in
• Arduino program memory (with F("") macro)
• examples is included in documentation
• massive documentation clean-up and corrections

v2.5

changes :

• mistakes in flash mem doc
• doc additions
• temp probe unconnected boolean attribute removed since useless with NaN
• slower steps in RimsIdent (more precise but bump test is now 90 min)
• added : endSession method (code reuse for other classes)
• debug : stuck PID outputing NaN values
• debug : flow measurement on pump warning in RimsIdent was stuck at 0 L/min

v2.4

changes :

• debug : warning message at compiling undefined behavior on array
• default heater action led is LED_BUILTIN
• RimsIdent code simplifcation
• UIRimsIdent reomved and merge with UIRims
• Countdown is never stopped when SP is NAN
• Manual model identification bump tests enhanced with static gain test and fast bump
• RTD amp Res1 is replaced by 124.5 ohm (249 // 249, standard values)
• MAXTEMPVAR is reduced to 1 deg C (with the new ADC pre-filter)
• setInterruptFlow rename to setFlowSensor with pin number (no more needs to externally enable pull-up on selected pin)
• debug : flow sensor uncommon weird value (0 L/min) caused by non-rentrency function micros (solved using noInterrupt shortly)
• added : hall effect flow sensor basic example
• doc

v2.3

Changes :

• lot of doc correction
• flash mem methods definition seperate cpp file
• data loggers code simplification
• new method to init all Rims attributes and IO
• code clean-up for auto-tuner
• RimsIdent tested bumps are smarter (30%long-55%long-5%avrg-55%short).

v2.2

Changes :

• PID output (ssrControl) is now in duty-cycle (0-100%) instead of 0-SSRWINDOWSIZE which is way more standard. PID coefficients will have "normal size" with this change.

v2.1

changes :

• Support for RTD reading with an instrument amplifier and cubic fitting
• Temperature pre-filtering before PID
• Critical flow simplification
• Unconnected sensors (temperature or unused flow) is now NaN
• Flow measurement is hide from the UI if sensor is not configured
• Debug

v2.0.2

debug :

• verify memConnected before adding brew data

v2.0.1

Debug :

• MEM NOT FOUND print on USB access mode if the flash is not found

Comments :

• pinMode(pinUsedForInterrupt,INPUT_PULLUP) should be called in the setup() function of the main sketch for the interrupt used by the flow sensor (see doc).

v2.0

Added :

• Winbond W25Q80BV SPI Flash memory for brew data. (see docs)
• USB menu to access memory data (by holding KEYSELECT at startup)

v1.7.2

changes :

• ISR Flow Sensor speed improvement (less CPU time spent in the flow calculation)
• Alarm if no voltage on heater (useful for breaker and manual swtich -> see docs)
• Different frequencies for each alarms : (low pitch --- high pitch)
• (noVoltageAlarm --- timerElapsedAlarm --- incorrectFlowAlarm --- disconnectedThermistorAlarm)
• Removed set point filter ("useless" with a good PIDF setting)

v1.6.1

bugfixe :

• Integrator clamping anti-windup is now functional and work pretty well ! Zero temperature overshoot on my RIMS !

v1.6

Added :

• Filter on derivative only
• Integration clamping (better than integration static saturation)
• Lot of bugfixes

v1.5.1

Debug :

• first PID value was invalid

v1.5

Debug :

• debug : PID output saturation moved after filter (it was causing a very slow regulator)

Added :

• set point, timer and mash water values are remembered after entire cycle is restarted

v1.4

Lot of changes :

• Temperature is maintained when time is elapsed (until KEYSELECT is pressed)
• Lot of alarm debug
• Serial monitor warning in identification tool
• arguments in setInterruptFlow to set lower and upper bound of flow rate (because it's not the same on all Rims system : if LWD or ULWD for ex.)
• MAXTEMPVAR = 1 deg Celcius
• Time remaining added to data logging
• Char showing if timer is counting down or not on LCD

v1.2.1

added :

• support for multiple regulator (up to 4) useful for diffrents mash water quantities

v1.1

debug :

• FLOWUPBOUND = 5 L/min
• CRITICALFLOW = 1.0 L/min
• flow sent over usb didn't had limits

v1.0

debug :

• _refreshDisplay() when switch screen
• temp ADC >= 1021 is considered like unconnected thermistor

v0.8.5

bugfixes :

• rimsBasic.ino now compile
• IdentRims flow warning LCD refresh rate = IDENTSAMPLETIME

v0.8.4

bugfixe :

• sometime, PID calculation was skipped

v0.8.3

debug :

• flowWarning LCD refresh rate = PIDSAMPLETIME

v0.8.2

Debug :

• better timing in Rims and RimsIdent : if sample time is a bit longer than it should be, entire time line is no longer shifted

v0.8.1

major bugs fixed :

• debug : ssrRefresh each iteration
• debug : set point filter initial condition = operating point

v0.8

Fixed:

• fixed sample time in identification
• identification procedure was too short : now 30 minutes
• LCD refresh time now 1000 mSec (500 mSec was too short for my LCD)
• better timing in Rims to assure constant PID sample time calculation
• RimsIdent uses parent class run() method

Added:

• basic data logging through Serial communication (usb port)
• turn off heater if flow is critically low (less than 0.5 L/min)