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BME280 Lua module - (config[3] & 0xFC) | BME280_FORCED_MODE workaround bug fix #3325

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Nov 11, 2020
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BME280 Lua module - (config[3] & 0xFC) | BME280_FORCED_MODE workaround bug fix #3325

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4 changes: 2 additions & 2 deletions lua_modules/bme280/bme280.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -130,8 +130,8 @@ function bme280_startreadout(self, callback, delay, alt)
delay = delay or BME280_SAMPLING_DELAY

if self._isbme then write_reg(self.id, self.addr, BME280_REGISTER_CONTROL_HUM, self._config[2]) end
write_reg(self.id, self.addr, BME280_REGISTER_CONTROL, math_floor(self._config[3]:byte(1)/4)+ 1)
-- math_floor(self._config[3]:byte(1)/4)+ 1
write_reg(self.id, self.addr, BME280_REGISTER_CONTROL, 4*math_floor(self._config[3]:byte(1)/4)+ 1)
-- 4*math_floor(self._config[3]:byte(1)/4)+ 1
-- an awful way to avoid bit operations but calculate (config[3] & 0xFC) | BME280_FORCED_MODE
-- Lua 5.3 integer division // would be more suitable

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