Content import urequests import json import badge import wifi import binascii import machine def gamma(x, gamma, max_in, max_out): print("I:",x) r = int(pow(float(x)/float(max_in), gamma) * max_out + 0.5) if r < 0: r = 0 if r > 255: r = 255 return r def hex_to_grbw_list(hex_str): global cheerlightsEnabled r,g,b = binascii.unhexlify(hex_str) w = 0 g = gamma(g*1.1, 2.8, 255, 255) r = gamma(r, 2.8, 255, 255) b = gamma(b, 2.8, 255, 255) if r == g and g == b and b == 255: r,g,b = 0, 0, 0 w = 255 return [g, r, b, w] next_update = None def update(): global cheerlightsEnabled global next_update t = machine.RTC().datetime() next_update = (t[0], t[1], t[2], t[3], t[4], t[5], t[6]+30, t[7]) r = urequests.get("http://api.thingspeak.com/channels/1417/field/2/last.json") data = json.loads(r.text) print("Cheerlights data: %s" % data) vals = hex_to_grbw_list(data['field2'][1:]) return vals last_color = [0,0,0,0] next_color = [0,0,0,0] def setup(): global next_color global cheerlightsEnabled cheerlightsEnabled = int(badge.nvs_get_str('cheerlights', 'state', '0')) if (cheerlightsEnabled<1): print("Cheerlights: Disabled! Please enable in the app!") else: badge.leds_enable() test() wifi.init() badge.leds_send_data(bytes(6*([0]*4)), 24) next_color = update() def flatten(l): return [item for sublist in l for item in sublist] def test(): white = hex_to_grbw_list("ffffff") yellow = hex_to_grbw_list("fffc0b") green = hex_to_grbw_list("5bff0b") orange = hex_to_grbw_list("ffb70b") red = hex_to_grbw_list("ff0b50") blue = hex_to_grbw_list("330bff") badge.leds_send_data(bytes(white+yellow+green+orange+red+blue), 24) import time time.sleep(1) # Thanks to https://stackoverflow.com/questions/28015400/how-to-fade-color for the tip def lerp(a, b, t): return a*(1 - t) + b*t i = 0 def loop(sleepCount): global cheerlightsEnabled global next_update global last_color global next_color global i if cheerlightsEnabled: if machine.RTC().datetime() >= next_update: next_color = update() last_color = list(int(lerp(c, w, 0.01)) for c, w in zip(last_color, next_color)) badge.leds_send_data(bytes(6*last_color), 24) return False def draw(x,y): # Not drawing anything return 0