Hello Liam,
Thanks for your reply. I have got the Glowbit code sorted. Here is the code if that helps.
Alternatively I could just make the Glowbit turn on and off in a certain distance range but I would rather take 2 distance readings about a minute apart and see if they have changed. Is there an easy way of doing this? As you can see from the code, all I have to do is change the value of stat, to turn on and off the Glowbit. Thanks.
import array, time
from time import sleep
import rp2
from PiicoDev_VL53L1X import PiicoDev_VL53L1X
from time import sleep
distSensor = PiicoDev_VL53L1X()
BLACK = (0, 0, 0)
RED = (255, 0, 0)
YELLOW = (255, 150, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
COLORS = (BLACK, RED, YELLOW, GREEN, BLUE)
NUM_LEDS = 13
PIN_NUM = 22
brightness = 0.2
@rp2.asm_pio(sideset_init=rp2.PIO.OUT_LOW, out_shiftdir=rp2.PIO.SHIFT_LEFT, autopull=True, pull_thresh=24)
def ws2812():
T1 = 2
T2 = 5
T3 = 3
wrap_target()
label("bitloop")
out(x, 1) .side(0) [T3 - 1]
jmp(not_x, "do_zero") .side(1) [T1 - 1]
jmp("bitloop") .side(1) [T2 - 1]
label("do_zero")
nop() .side(0) [T2 - 1]
wrap()
sm = rp2.StateMachine(0, ws2812, freq=8_000_000, sideset_base=Pin(PIN_NUM))
sm.active(1)
ar = array.array("I", [0 for _ in range(NUM_LEDS)])
def pixels_show():
dimmer_ar = array.array("I", [0 for _ in range(NUM_LEDS)])
for i,c in enumerate(ar):
r = int(((c >> 8) & 0xFF) * brightness)
g = int(((c >> 16) & 0xFF) * brightness)
b = int((c & 0xFF) * brightness)
dimmer_ar[i] = (g<<16) + (r<<8) + b
sm.put(dimmer_ar, 8)
time.sleep_ms(10)
def pixels_set(i, color):
ar[i] = (color[1]<<16) + (color[0]<<8) + color[2]
def pixels_fill(color):
for i in range(len(ar)):
pixels_set(i, color)
def convert(x, i_m, i_M, o_m, o_M):
return max(min(o_M, (x - i_m) * (o_M - o_m) // (i_M - i_m) + o_m), o_m)
def display():
dist = int(str(distSensor.read()))
nol = convert(dist, 500, 2000, 1, 13)
for i in range(0, 13):
if i < nol:
pixels_set(i, BLUE)
else:
pixels_set(i, BLACK)
if dist <= 500:
pixels_fill(GREEN)
if dist <= 400:
pixels_fill(YELLOW)
if dist <= 300:
pixels_fill(RED)
pixels_show()
sleep(0.05)
stat = 1
while True:
if stat:
display()
else:
pixels_fill(BLACK)
pixels_show()
