add g_watch to preload

preload/apps/g_watch/README.md

+#G-Watch
+A gesture controlled power-saving digital clock. It can replace main.py as standard watch. 
+
+###How to use: 
+Hold your arm roughly straight and turn your wrist quickly. The digital clock will appear on the screen and fade out after a few seconds.
+
+###Features:
+* Gesture controlled
+* Screen brightness adapts to environment brightness
+
+Uses code from watch++
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preload/apps/g_watch/__init__.py

+import buttons
+import display
+import ledfx
+import leds
+import math
+import bhi160
+import utime
+import power
+import light_sensor
+ 
+disp = display.open()
+sensor = 0
+sensors = [{"sensor": bhi160.BHI160Orientation(sample_rate=8), "name": "Orientation"}]
+
+DIGITS = [
+    (True, True, True, True, True, True, False),
+    (False, True, True, False, False, False, False),
+    (True, True, False, True, True, False, True),
+    (True, True, True, True, False, False, True),
+    (False, True, True, False, False, True, True),
+    (True, False, True, True, False, True, True),
+    (True, False, True, True, True, True, True),
+    (True, True, True, False, False, False, False),
+    (True, True, True, True, True, True, True),
+    (True, True, True, True, False, True, True)
+]
+
+DOW = ['Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa', 'Su']
+
+led_count = 11
+b7=255 # brightness of 7-segment display 0...255
+
+def ceil_div(a, b):
+    return (a + (b - 1)) // b
+
+
+def tip_height(w):
+    return ceil_div(w, 2) - 1
+
+
+def draw_tip( x, y, w, c, invert=False, swapAxes=False):
+    h = tip_height(w)
+    for dy in range(h):
+        for dx in range(dy + 1, w - 1 - dy):
+            px = x + dx
+            py = y + dy if not invert else y + h - 1 - dy
+            if swapAxes:
+                px, py = py, px
+            disp.pixel(px, py, col=c)
+
+
+def draw_seg( x, y, w, h, c, swapAxes=False):
+    tip_h = tip_height(w)
+    body_h = h - 2 * tip_h
+
+    draw_tip( x, y, w, c, invert=True, swapAxes=swapAxes)
+
+    px1, px2 = x, x + (w - 1)
+    py1, py2 = y + tip_h, y + tip_h + (body_h - 1)
+    if swapAxes:
+        px1, px2, py1, py2 = py1, py2, px1, px2
+    disp.rect(px1, py1, px2, py2, col=c)
+
+    draw_tip( x, y + tip_h + body_h, w, c, invert=False, swapAxes=swapAxes)
+
+
+def draw_Vseg( x, y, w, l, c):
+    draw_seg( x, y, w, l, c)
+
+
+def draw_Hseg( x, y, w, l, c):
+    draw_seg( y, x, w, l, c, swapAxes=True)
+
+
+def draw_grid_seg( x, y, w, l, c, swapAxes=False):
+    sw = w - 2
+    tip_h = tip_height(sw)
+
+    x = x * w
+    y = y * w
+    l = (l - 1) * w
+    draw_seg( x + 1, y + tip_h + 3, sw, l - 3, c, swapAxes=swapAxes)
+
+
+def draw_grid_Vseg( x, y, w, l, c):
+    draw_grid_seg( x, y, w, l, c)
+
+
+def draw_grid_Hseg( x, y, w, l, c):
+    draw_grid_seg( y, x, w, l, c, swapAxes=True)
+
+
+def draw_grid( x1, y1, x2, y2, w, c):
+    for x in range(x1 * w, x2 * w):
+        for y in range(y1 * w, y2 * w):
+            if x % w == 0 or x % w == w - 1 or y % w == 0 or y % w == w - 1:
+                disp.pixel(x, y, col=c)
+
+
+def draw_grid_7seg( x, y, w, segs, c):
+    if segs[0]:
+        draw_grid_Hseg( x, y, w, 4, c)
+    if segs[1]:
+        draw_grid_Vseg( x + 3, y, w, 4, c)
+    if segs[2]:
+        draw_grid_Vseg( x + 3, y + 3, w, 4, c)
+    if segs[3]:
+        draw_grid_Hseg( x, y + 6, w, 4, c)
+    if segs[4]:
+        draw_grid_Vseg( x, y + 3, w, 4, c)
+    if segs[5]:
+        draw_grid_Vseg( x, y, w, 4, c)
+    if segs[6]:
+        draw_grid_Hseg( x, y + 3, w, 4, c)
+
+
+
+
+def render_num(num, x):
+    draw_grid_7seg( x, 1, 7, DIGITS[num // 10], (b7, b7, b7))
+    draw_grid_7seg( x + 5, 1, 7, DIGITS[num % 10], (b7, b7, b7))
+
+
+def render_colon():
+    draw_grid_Vseg( 11, 2, 7, 2, (b7, b7, b7))
+    draw_grid_Vseg( 11, 4, 7, 2, (b7, b7, b7))
+
+
+def render7segment():
+    year, month, mday, hour, min, sec, wday, yday = utime.localtime()
+
+    render_num( hour, 1)
+    render_num( min, 13)
+
+    if sec % 2 == 0:
+        render_colon()
+
+
+
+
+with display.open() as disp:
+    disp.clear().update()
+
+    bri=0
+    threshold_angle=35
+    zn=0
+
+    yo=0        #old y value
+    yn=0        #new y value
+    yd=0        #y difference
+    ydl=0       #yd lpf
+    clock_on=utime.monotonic_ms()   #time in ms when clock is turned on
+    timeout=7000                    #time in ms how long clock will be displayed
+    clock_off=clock_on+timeout      #time in ms when clock is turned off
+    fade_time=0 #fade out counter
+    
+    leds.dim_top(2)
+    leds_on=0
+    p_leds_on=0
+
+    
+    while True:
+        millis=utime.monotonic_ms()
+        lt = utime.localtime()
+        dow = lt[6]
+            
+	
+        #---------------------------------------- read brightness sensor
+        bri=light_sensor.get_reading()          
+        bri=int(fade_time*100/1000 * bri/200)   # calculate display brightness in percent (bri)
+
+        if (bri>100):                                       
+            bri=100
+        if (bri<0):
+            bri=0
+
+        ledbri=((bri/2)+50)/100                 # calculate led bar brightness (ledbri = 0...1)
+
+
+        #---------------------------------------- read buttons
+        pressed = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT)
+        p_leds_on=leds_on
+    
+        if pressed & buttons.BOTTOM_LEFT != 0:
+           leds_on=0
+           disp.clear()
+           disp.print('LEDS OFF', posx=40, posy=30, font=2)
+           disp.update()
+           disp.backlight(brightness=50)
+           utime.sleep_ms(500)
+           disp.backlight(brightness=0)
+           for led in range(led_count):        
+                leds.prep_hsv(led, [0,0,0])
+           disp.update()
+
+        if pressed & buttons.BOTTOM_RIGHT != 0:
+           leds_on=1
+           disp.clear()
+           disp.print('LEDS ON', posx=40, posy=30, font=2)
+           disp.update()
+           disp.backlight(brightness=50)
+           utime.sleep_ms(500)
+           disp.backlight(brightness=0)
+           
+           
+
+                
+	#---------------------------------------- read orientation sensor
+    	samples = sensors[sensor]["sensor"].read()
+    	if len(samples) > 0:                    #get orientation sensor samples
+        	sample = samples[0]
+
+                yo=yn                           #calculate absolute wrist rotation since last check
+                yn=sample.y+360
+                yd=abs(yn-yo)
+                yd=yd%180
+                yd=yd*22                        #multiply rotation with amplifier
+                
+                if abs(sample.z)>50:            #if arm is hanging:
+                    yd=0                        #do not regard wrist rotation
+                    
+                ydl=ydl*.9  
+                ydl=(yd+ydl*9)/10               #low pass filter wrist rotation
+                
+                if ydl>100:                     #check rottion against threshold and limit value 
+                    ydl=100
+                    
+                    if clock_on+timeout<millis:
+                        clock_on=millis
+                        clock_off = timeout+clock_on
+
+        #.................................... display rotation bargraph on leds // full bar == hitting threshold
+        
+        if (leds_on==1):
+            hour = lt[3]
+            hue=360-(hour/24*360)
+        
+        
+            for led in range(led_count):           
+                if(led<int(ydl/100*12)-1) or millis<clock_off-1500-((10-led)*15)+300:
+                    leds.prep_hsv(10-led, [hue,100,ledbri])#led=0
+                else:
+                    leds.prep_hsv(10-led, [0,0,0])
+
+                
+        #---------------------------------------- display clock
+        disp.clear()
+        if clock_off>=millis: 
+
+            #.................................... time
+            lt = utime.localtime()
+            year = lt[0]
+            month = lt[1]
+            day = lt[2]
+            hour = lt[3]
+            mi = lt[4]
+            sec = lt[5]
+            dow = lt[6]
+
+
+            fade_time = clock_off-millis-1000 #calculate fade out
+
+            if fade_time<0:
+                fade_time=0
+                
+            if fade_time>1000:
+                fade_time=1000
+                
+            disp.backlight(brightness=bri)
+
+            render7segment()                        #render time in 7-segment digiclock style
+            
+            disp.print('{:02d}-{:02d}-{} {}'.format(day, month, year, DOW[dow]), posx=10, posy=67, font=2)  # display date
+            
+            
+            #.................................... power
+            pwr=math.sqrt(power.read_battery_voltage())
+      
+            #disp.print("%f" % power.read_battery_voltage(), posx=25, posy=58, font=2)      # display battery voltage
+            full=2.0
+            empty=math.sqrt(3.4)
+            pwr=pwr-empty
+            full=full-empty
+            pwrpercent=pwr*(100.0/full)
+            #disp.print("%f" % pwrpercent, posx=25, posy=67, font=2)                        # display battery percent
+
+            if pwrpercent<0:
+                pwrpercent=0
+            
+            if pwrpercent>100:
+                pwrpercent=100
+            
+            disp.rect(8, 60, 153, 63, col=[100,100,100])               # draw battery bar
+
+            c=[255,0,0]             #red=empty
+            if pwrpercent>10:
+                c=[255,255,0]       #yellow=emptyish
+            if pwrpercent>25:
+                c=[0,255,0]         #green=ok
+            
+            disp.rect(8, 60, int(pwrpercent*1.43+8), 63, col=c)        # draw charge bar in battery bar
+
+    
+               
+        
+        #---------------------------------------- do not display clock
+            
+
+            
+
+        leds.update()
+        disp.update()
+
+	

preload/apps/g_watch/metadata.json

+{"name":"G-watch","description":"#G-Watch\r\nA gesture controlled power-saving digital clock. It can replace main.py as standard watch. \r\n\r\n###How to use: \r\nHold your arm roughly straight and turn your wrist quickly. The digital clock will appear on the screen and fade out after a few seconds.\r\n\r\n###Features:\r\n* Gesture controlled\r\n* Screen brightness adapts to environment brightness\r\n\r\nUses code from watch++","category":"utility","author":"royrobotiks","revision":7}
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