The following code demonstrates the use of the Pimoroni Explorer Kit as a desktop auto clock/calendar/weather station. I hope someone finds it useful.
Triangles used to be difficult but the latest version of picographics makes them easy to use. I really like the larger screen. It shows off the 320×240 pixels much better. The multi-sensor-stick is really easy to use.
# Pimoroni Explorer Demo # Analog/ Digital clock – Tony Goodhew, Leicester UK – 6 Nov 2024 # Uses the Multi-Sensor Stick (BME280 + LTR559 + LSM6DS3) from explorer import display, i2c, button_z, button_x, button_y, BLACK, WHITE, GREEN, RED, BLUE, YELLOW, CYAN from breakout_bme280 import BreakoutBME280 from breakout_ltr559 import BreakoutLTR559 import math import time # Check sensor stick connected try: bme = BreakoutBME280(i2c, address=0x76) ltr = BreakoutLTR559(i2c) except RuntimeError: display.set_layer(0) display.set_pen(RED) display.clear() display.set_pen(WHITE) display.text(“Multi-Sensor Stick missing”, 10, 95, 320, 3) display.update() WIDTH, HEIGHT = display.get_bounds() # Get current time year, month, day, h, m, s, wd, _ = time.localtime() days = [“Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”, “Saturday”, “Sunday”] months = [“Jan”, “Feb”, “Mar”, “Apr”, “May”, “Jun”, “Jul”, “Aug”, “Sep”, “Oct”, “Nov”, “Dec”] # Used for minute and hour hands def hand(ang, long): ang = ang-90 ls = long/10 x0 = int(round(long * math.cos(math.radians(ang))))+cx y0 = int(round(long * math.sin(math.radians(ang))))+cy x1 = int(round(ls * math.cos(math.radians(ang+90))))+cx y1 = int(round(ls * math.sin(math.radians(ang+90))))+cy x2 = int(round(ls * math.cos(math.radians(ang-90))))+cx y2 = int(round(ls * math.sin(math.radians(ang-90))))+cy display.triangle(x0,y0,x1,y1,x2,y2) display.circle(cx,cy,int(ls)) display.set_backlight(1.0) display.set_layer(0) display.set_pen(BLACK) display.clear() display.set_layer(1) display.set_pen(BLACK) display.clear() cx = 199 # centre of clock cy = 119 l = 110 # Draw clock face display.set_pen(BLUE) display.circle(cx,cy,110) display.update() ls = 94 display.set_pen(WHITE) for angle in range(0,360,6): xx = int(round(l * math.cos(math.radians(angle)))) yy = int(round(l * math.sin(math.radians(angle)))) display.line(cx,cy,cx+xx,cy+yy) display.set_pen(BLACK) display.circle(cx,cy,100) display.set_pen(WHITE) for angle in range(0,360,30): xx = int(round(l * math.cos(math.radians(angle)))) yy = int(round(l * math.sin(math.radians(angle)))) display.line(cx,cy,cx+xx,cy+yy) # Sensor titles display.set_pen(WHITE) display.text(“Temperature”,5,40,310,1) display.text(“Lux”,5,80,300,1) display.text(“Rel Humidity”,5,120,300,1) display.text(“Air Pressure”,5,200,300,1) # === Main Loop ====== while True: # Draw face numbers display.set_pen(BLACK) display.circle(cx,cy,93) # Clear centre of clock face display.set_pen(YELLOW) display.text(“9”,118,108,320,3) display.text(“3”,268,108,320,3) display.text(“10”,128,70,320,3) display.text(“2”,258,70,320,3) display.text(“1”,230,45,320,3) display.text(“11”,160,45,320,3) display.text(“12”,190,37,320,3) display.text(“6”,193,186,320,3) display.text(“7”,156,176,320,3) display.text(“5”,230,176,320,3) display.text(“4”,258,150,320,3) display.text(“8”,130,150,320,3) # Draw hands mang = int((m + s/60)* 6) # angle of minute hand hang = int((h + m/60 )* 30 ) # angle of hour hand display.set_pen(BLUE) hand(mang,90) display.set_pen(RED) hand(hang,70) sang = 6 * s – 90 xs = int(round(ls * math.cos(math.radians(sang)))) ys = int(round(ls * math.sin(math.radians(sang)))) display.set_pen(WHITE) display.line(cx,cy,cx+xs,cy+ys) display.circle(cx,cy,3) # Assemble Digital time ss = “0” + str(s) lgs =len(ss) ss = ss[lgs-2:lgs] ms = “0” + str(m) lgs = len(ms) ms = ms[lgs-2:lgs] hs = “0” + str(h) lgs = len(hs) hs = hs[lgs-2:lgs] dt = hs+”:”+ms+”:”+ss # Clear sensor text areas display.set_pen(BLACK) display.rectangle(5,10,127,18) display.rectangle(5,50,90,18) display.rectangle(5,90,80,18) display.rectangle(5,130,80,18) display.rectangle(5,210,115,18) display.rectangle(5,163,90,28) # Write digital time & sensor readings display.set_pen(YELLOW) display.text(dt,5,10,320,3) # read the sensors temperature, pressure, humidity = bme.read() temp = round(temperature,1) display.set_pen(GREEN) display.text(str(temp)+” C”,5,50,320,3) # Convert pressure to hPa pressurehpa = int(pressure / 100) display.text(str(int(humidity)) +” %”, 5,130,320,3) display.text(str(pressurehpa)+” hPa”,5,210,320,3) prox, a, b, c, d, e, lux = ltr.get_reading() lux = int(lux) display.set_pen(CYAN) display.text(str(lux),5,90,320,3) # Update date/time year, month, day, h, m, s, wd, _ = time.localtime() display.text(days[wd],5,163,320,1) display.text(str(day)+” “+months[month-1],5,173,320,2) display.update() time.sleep(0.1)
Video here: https://youtu.be/p8yvwJqr3u4
If you would like a tutorial on using the tilt aspects of the IMU, please leave a comment.
