timer LCD displays cooling time after DROP

Author: MAKOMO

src/artisanlib/canvas.py

@@ -5834,22 +5834,17 @@ def updateLCDtime(self) -> None:
             try:
                 if self.aw.sample_loop_running and len(self.timeindex) == 8: # ensure we have a valid self.timeindex array
 
-                    if self.timeindex[0] != -1 and len(self.timex) > self.timeindex[0]:
+                    if self.timeindex[6] != 0 and len(self.timex) > self.timeindex[6]:
+                        ts = tx - self.timex[self.timeindex[6]]
+                    elif self.timeindex[0] != -1 and len(self.timex) > self.timeindex[0]:
                         ts = tx - self.timex[self.timeindex[0]]
                     else:
                         ts = tx
 
                     # if more than max cool (from statistics) past DROP and not yet COOLend turn the time LCD red:
-                    if (self.timeindex[0]!=-1 and self.timeindex[6] and
-                            not self.timeindex[7] and
-                            ((len(self.timex) == 1+self.timeindex[6]) or
-                                (len(self.timex)>self.timeindex[6] and (4*60+2 > (tx - self.timex[self.timeindex[6]]) > 4*60)))):
-                        # switch LCD color to "cooling" color (only after 4min cooling we switch to slowcoolingtimer color)
-                        if (tx - self.timex[self.timeindex[6]]) > 4*60:
-                            timer_color = 'slowcoolingtimer'
-                        else:
-                            timer_color = 'rstimer'
-                        self.aw.setTimerColor(timer_color)
+                    if (self.timeindex[0]!=-1 and self.timeindex[6] != 0 and not self.timeindex[7] and
+                                len(self.timex) > self.timeindex[6] and (tx - self.timex[self.timeindex[6]]) > 4*60):
+                            self.aw.setTimerColor('slowcoolingtimer')
 
                     if self.chargeTimerFlag and self.timeindex[0] == -1 and self.chargeTimerPeriod != 0:
                         if self.chargeTimerPeriod > ts:
@@ -15308,6 +15303,7 @@ def markDrop(self, noaction:bool = False) -> None:
                     # we check if this is the first DROP mark on this roast
                     firstDROP = self.timeindex[6] == 0 # on UNDO DROP we do not send the record to plus
                     if self.aw.buttonDROP.isFlat() and self.timeindex[6] > 0:
+                        self.aw.setTimerColor('timer') # reset cooling timer color back to the default
                         self.autoDropIdx = -1 # disable autoDROP to allow manual re-DROP
                         # undo wrongly set FCs
                         # deactivate autoDROP
@@ -15331,6 +15327,7 @@ def markDrop(self, noaction:bool = False) -> None:
                             if 6 in self.l_annotations_dict:
                                 del self.l_annotations_dict[6]
                     elif not self.aw.buttonDROP.isFlat():
+                        self.aw.setTimerColor('rstimer') # cooling timer color
                         self.incBatchCounter()
                         # generate UUID
                         if self.roastUUID is None: # there might be already one assigned by undo and redo the markDROP!

src/requirements-dev.txt

@@ -14,7 +14,7 @@ types-jmespath>=1.1.0.20260408
 types-xlrd>=2.0.0.20260408
 types-qrcode>=8.2.0.20260408
 lxml-stubs>=0.5.1
-mypy==1.20.0
+mypy==1.20.1
 pyright==1.1.408
 ruff>=0.15.10
 pylint==4.0.5
@@ -29,7 +29,7 @@ pytest-datadir==1.8.0
 #PyVirtualDisplay==3.0
 #pytest-bdd==6.1.1
 #pytest-benchmark==4.0.0
-hypothesis>=6.151.12
+hypothesis>=6.151.13
 coverage>=7.13.5
 coverage-badge==1.1.2
 codespell==2.4.2

src/requirements.txt

@@ -51,7 +51,7 @@ colorspacious==1.1.2
 openpyxl==3.1.5
 keyring==25.7.0
 prettytable==3.17.0
-lxml==6.0.2
+lxml==6.0.4
 matplotlib==3.10.8
 jinja2==3.1.6
 aiohttp==3.13.5

wiki/ReleaseHistory.md

@@ -19,6 +19,7 @@ v4.0.4 (Mar XX, 2026)
   - adds hack to prevent dtr/rts signaling on connecting serial ports
   - preserves weight/volume unit setup on loading/importing profiles
   - enables extra device curve fills on recording
+  - timer LCD displays cooling time after DROP
 * FIXES
   - fixes autosave as PDF on regular `Save` on macOS ([Issue #2118](../../../issues/2118))
   - fixes regression which led to large automatic x-axis extensions for larger sampling rates ([Issue #2142](../../../issues/2142))