kitchen: added screenshots for heart and swatch, updated README

apps/kitchen/README.md

@@ -1,4 +1,4 @@
-# Kitchen Combo - a multiclock format of the waypointer, walkersclock, stepo and arrow apps.
+# Kitchen Combo - a multiclock format of the waypointer, walkersclock, stepo, stopwatch, heartrate and arrow apps.
 
 ![](screenshot_kitchen.jpg)
 
@@ -66,10 +66,16 @@ The following buttons depend on which face is currently in use
 - Use BTN3 to switch to the next app.
 
 ## Swatch
+![](screenshot_swatch.jpg)
 - A simple stopwatch
 - BTN1 - start, stop
 - BTN2 - lap if the timer is running, reset if the timer is stopped
 
+## Heart
+![](screenshot_heart.jpg)
+- A simple heart rate monitor, at present the app is just showing the raw value from HRM.bpm
+- BTN1, long press, turn heart rate monitor on / off
+
 ## Waypointer
 - Use BTN1 to select previous waypoint (when GPS is on)
 - Use BTN2 to select the next waypoint (when GPS is on)
@@ -218,6 +224,13 @@ I have settled on directly writing to the screen using the Graphics
 object (g.) for the compass App.  This creates a bit of flicker when
 the arrow moves but is more reliable than using the ArrayBuffer.
 
+v0.09: Since adding the heart rate monitor I have noticed that I can
+sometimes can a memory error when switch through the Apps back to the
+Stepo App.  I think this can be cured by statically allocating the
+ArrayBuffer for stepo rather than using new everytime you switch back
+into the stepo watch face.  The problem is that the bangle memory
+management / defragmentation is quite slow to run.
+
 
 ### Error Codes
 
@@ -227,8 +240,13 @@ The following error codes will be displayed if one of the dependancies is not me
 * E-CALIB - no compass calibration data was found, see 'Compass Calibration'
 * E-FW    - require firmware 2v08.187 or later to detect gps and compass power status
 
-### Issues
+### Issues / Future enhancements
 
+* Revisit statically assigning the display buffer for stepo to avoid memory defrag
 * GPS time display shows GMT and not BST, needs localising
 * Occassional buzzing after 2-3 days of use, seems to disappear after
   a reset to the launcher menu. Needs investigation
+* Automatically switch the GPS power setting from Super-E to PSMOO 10
+  seconds after the LCD goes off.  At present I just rely on using
+  the GPSSetup app and set the GPS power mode that I want.
+* Add a small graph to the heart rate monitor app