Datasheet

mlx.refresh_rate = adafruit_mlx90640.RefreshRate.REFRESH_4_HZ

frame = [0] * 768

while True:

stamp = time.monotonic()

try:

mlx.getFrame(frame)

except ValueError:

# these happen, no biggie - retry

continue

# print("Time for data aquisition: %0.2f s" % (time.monotonic()-stamp))

mini = frame[0] # Define a min temperature of current image

maxi = frame[0] # Define a max temperature of current image

for h in range(24):

for w in range(32):

t = frame[h*32 + w]

if t > maxi:

maxi = t

if t < mini:

mini = t

image_bitmap[w, (23-h)] = int(map_range(t, min_t, max_t, 0, last_color ))

min_label.text="%0.2f" % (min_t)

max_string="%0.2f" % (max_t)

max_label.x=120-(5*len(max_string)) # Tricky calculation to left align

max_label.text=max_string

min_t = mini # Automatically change the color scale

max_t = maxi

# print((mini, maxi)) # Use this line to display min and max graph in Mu

# print("Total time for aquisition and display %0.2f s" % (time.monotonic()-stamp))

Now point the thermal camera at various objects to see a heat map displayed on your board!