2 Breathing LED -use PWM module
A breathing LED could be easily setup by the PWM function on the WiFiMCU board.
STEP 1, Find a LED with dupont lines. Connect the anode to D1(or whatever pin that supports PWM function) while the cathnode to a GND pin on WiFiMCU board.
STEP 2, Save the Lua scripts below as “Breathing_LED.lua”.
1．print("---WiFiMCU Demo---")
2．print("Breathing LED")
3．pin = 1
4．freq =10000
5．duty =0
6．dir = 1
7．tmr.start(1,50,function()
8． if dir ==1 then
9． duty = duty + 5
10． if duty>100 then
11． duty =100
12． dir = 0
13． end
14． else
15． duty = duty - 5
16． if duty< 0 then
17． duty = 0
18． dir = 1
19． end
20． end
21． pwm.start(pin,freq,duty)
22．end)
STEP 3, Upload the scripts via WiFiMCU STUDIO, Run this script.
