2020-01-21 09:26:58 -05:00
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2020-01-27 10:40:10 -05:00
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# MAX44009 I2C LUX sensor
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2020-01-21 09:26:58 -05:00
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2020-02-16 04:00:38 -05:00
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a.k.a. GY-49
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2020-01-27 10:40:10 -05:00
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## Examples
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**Max44009\examples\max44009_test01**
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2020-02-16 04:00:38 -05:00
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- use for e.g. UNO (use voltage convertor!)
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2020-01-21 09:26:58 -05:00
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2020-01-27 10:40:10 -05:00
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**Max44009\examples\max44009_test02**
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2020-01-21 09:26:58 -05:00
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- will not compile for UNO
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- use for e.g. ESP32
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2020-02-16 04:00:38 -05:00
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## Schema breakout max44009 / GY-49
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```
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+--------+
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VCC |o |
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GND |o |
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SCL |o o| ADDRESS
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SDA |o o| -INT
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+--------+
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ADDRESS:
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0 = 0x4A
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1 = 0x4B
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INT:
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Connect the INT pin to an pull up resistor
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0 = interrupt
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1 = no interrupt
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connect to an LED or an interrupt pin of an Arduino
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```
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2020-01-27 11:06:52 -05:00
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## Notes
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Please be aware this is a 3.3 Volt device so it should not be connected
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to an Arduino or other 5 Volt device directly. Use a level convertor to
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solve this.
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2020-02-16 04:00:38 -05:00
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Do not forget to connect the address pin as you cannot read the sensor
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in a reliable way. As the line will float it will sometimes have the
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right address and sometimes not. (been there ;)
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