AM2320 Module

Since Origin / Contributor Maintainer Source
2016-02-14 Henk Vergonet Henk Vergonet am2320.c

This module provides access to the AM2320 humidity and temperature sensor, using the i2c interface.

am2320.read()

Samples the sensor and returns the relative humidity in % and temperature in celsius, as an integer multiplied with 10.

Syntax

am2320.read()

Returns

  • relative humidity percentage multiplied with 10 (integer)
  • temperature in celcius multiplied with 10 (integer)

Example

sda, scl = 1, 2
i2c.setup(0, sda, scl, i2c.SLOW) -- call i2c.setup() only once
am2320.setup()
rh, t = am2320.read()
print(string.format("RH: %s%%", rh / 10))
print(string.format("Temperature: %s degrees C", t / 10))

am2320.setup()

Initializes the module. Returns model, version, serial but is seams these where all zero on my model.

Syntax

model, version, serial = am2320.setup()

Parameters

None

Returns

  • model 16 bits number of model
  • version 8 bits version number
  • serial 32 bits serial number

Note: I have only observed values of 0 for all of these, maybe other sensors return more sensible readings.