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-- inspired by https://github.com/hackhitchin/esp8266-co-uk/blob/master/tutorials/introduction-to-gpio-api.md | |
-- and http://www.esp8266.com/viewtopic.php?f=24&t=4833&start=5#p29127 | |
local pin = 4 --> GPIO2 | |
function debounce (func) | |
local last = 0 | |
local delay = 50000 -- 50ms * 1000 as tmr.now() has μs resolution | |
return function (...) | |
local now = tmr.now() |
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MAX7219_REG_NOOP = 0x00 | |
MAX7219_REG_DECODEMODE = 0x09 | |
MAX7219_REG_INTENSITY = 0x0A | |
MAX7219_REG_SCANLIMIT = 0x0B | |
MAX7219_REG_SHUTDOWN = 0x0C | |
MAX7219_REG_DISPLAYTEST = 0x0F | |
happy = {0x3C, 0x42, 0xA5, 0x81, 0xA5, 0x99, 0x42, 0x3C} | |
frown = {0x3C, 0x42, 0xA5, 0x81, 0xBD, 0x81, 0x42, 0x3C} | |
sad = {0x3C, 0x42, 0xA5, 0x81, 0x99, 0xA5, 0x42, 0x3C} |
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