39 lines
933 B
Markdown
39 lines
933 B
Markdown
# HMC5883L Module
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| Since | Origin / Contributor | Maintainer | Source |
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| :----- | :-------------------- | :---------- | :------ |
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| 2016-04-09 | [Jason Schmidlapp](https://github.com/jschmidlapp) | [Jason Schmidlapp](https://github.com/jschmidlapp) | [hmc5883l.c](../../app/modules/hmc5883l.c)|
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This module provides access to the [HMC5883L](https://www.sparkfun.com/products/10530) three axis digital compass.
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## hmc5883l.read()
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Samples the sensor and returns X,Y and Z data.
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#### Syntax
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`hmc5883l.read()`
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#### Returns
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x,y,z measurements (integers)
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temperature multiplied with 10 (integer)
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#### Example
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```lua
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local sda, scl = 1, 2
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i2c.setup(0, sda, scl, i2c.SLOW) -- call i2c.setup() only once
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hmc5883l.setup()
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local x,y,z = hmc5883l.read()
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print(string.format("x = %d, y = %d, z = %d", x, y, z))
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```
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## hmc5883l.setup()
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Initializes the module.
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#### Syntax
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`hmc5883l.setup()`
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#### Parameters
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None
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#### Returns
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`nil`
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