def show_digit(val, xd, yd, r, g, b):
offset = val * 15
for p in range(offset, offset + 15):
xt = p % 3
yt = (p - offset) // 3
ledmatrix.set_pixel(xt + xd, 7 - yt - yd, r * NUMS[p], g * NUMS[p], b * NUMS[p])
ledmatrix.show()
def draw_battery_outline(): # Draw the naked battery
for y in range(0, 6):
ledmatrix.set_pixel(1, y, 64, 64, 255)
ledmatrix.set_pixel(5, y, 64, 64, 255)
for x in range(2, 5):
ledmatrix.set_pixel(x, 0, 64, 64, 255)
ledmatrix.set_pixel(x, 6, 192, 192, 192)
ledmatrix.show()
def show_map(r, g, b):
for x in range(0, 7):
for y in range(0, 7):
z = (float(y) + 7.0 * float(x)) / 49.0
rr = int(z * r)
gg = int(z * g)
bb = int(z * b)
ledmatrix.set_pixel(x, y, rr, gg, bb)
ledmatrix.show()
def flash_screen(rgb_tuple):
for i in range(5):
ledmatrix.set_all(rgb_tuple[0], rgb_tuple[1], rgb_tuple[2])
ledmatrix.show()
sleep(0.2)
ledmatrix.set_all(background_color[0], background_color[1],
background_color[2])
ledmatrix.show()
sleep(0.2)
def record(record_time, output_file, pause_time=1):
print("Recording audio for " + str(record_time) + "s...")
ledmatrix.set_all(255, 0, 0)
ledmatrix.show()
microphone.record()
sleep(record_time)
microphone.stop()
ledmatrix.off()
microphone.save(output_file, True)
print("Saved to " + output_file)
print("")
pause(pause_time)
def update_battery_state(charging_state, capacity):
r = 0
g = 0
b = 0
if charging_state == 0:
if capacity < 11:
r = 255
else:
g = 255
elif charging_state == 1:
r = 255
g = 225
cap = int(capacity / 20) + 1
if cap < 0:
cap = 0
if cap > 5:
cap = 5
if cap > 0:
for y in range(1, cap + 1):
ledmatrix.set_pixel(2, y, r, g, b)
ledmatrix.set_pixel(3, y, r, g, b)
ledmatrix.set_pixel(4, y, r, g, b)
if cap == 0:
cap = 1
if cap < 6:
if (capacity < 50) and (charging_state == 0):
# blinking warning
for i in range(1, 3):
for y in range(cap + 1, 6):
ledmatrix.set_pixel(2, y, 0, 0, 0)
ledmatrix.set_pixel(3, y, 0, 0, 0)
ledmatrix.set_pixel(4, y, 0, 0, 0)
ledmatrix.show()
sleep(0.4)
for y in range(cap + 1, 6):
ledmatrix.set_pixel(2, y, 255, 0, 0)
ledmatrix.set_pixel(3, y, 255, 0, 0)
ledmatrix.set_pixel(4, y, 255, 0, 0)
ledmatrix.show()
sleep(0.4)
else:
for y in range(cap + 1, 6):
ledmatrix.set_pixel(2, y, 0, 0, 0)
ledmatrix.set_pixel(3, y, 0, 0, 0)
ledmatrix.set_pixel(4, y, 0, 0, 0)
ledmatrix.show()
sleep(5)
return 0
# Displays a single digit (0-9)
def show_digit(val, xd, yd, r, g, b):
offset = val * 15
for p in range(offset, offset + 15):
xt = p % 3
yt = (p - offset) // 3
ledmatrix.set_pixel(xt + xd, 7 - yt - yd, r * NUMS[p], g * NUMS[p],
b * NUMS[p])
ledmatrix.show()
# Displays a two-digits positive number (0-99)
def show_number(val, r, g, b):
abs_val = abs(val)
tens = abs_val // 10
units = abs_val % 10
if abs_val > 9:
show_digit(tens, OFFSET_LEFT, OFFSET_TOP, r, g, b)
show_digit(units, OFFSET_LEFT + 4, OFFSET_TOP, r, g, b)
ledmatrix.rotation(0)
ledmatrix.clear()
for i in range(0, 100):
show_number(i, 255, 255, 0)
time.sleep(0.5)
ledmatrix.clear()
ledmatrix.show()