diff --git a/examples/python/bmp85.py b/examples/python/bmp85.py new file mode 100644 index 0000000..9156744 --- /dev/null +++ b/examples/python/bmp85.py @@ -0,0 +1,53 @@ +#!/usr/bin/env python + +# Author: Brendan Le Foll +# Copyright (c) 2014 Intel Corporation. +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE + +import mraa as m + +# this example will show the 'advanced' i2c functionality from python i2c +# read/write + +x = m.I2c(0) +x.address(0x77) + +# initialise device +if x.readReg(0xd0) != 0x55: + print("error") + +# we want to read temperature so write 0x2e into control reg +x.writeReg(0xf4, 0x2e) + +# read a 16bit reg, obviously it's uncalibrated so mostly a useless value :) +print(str(x.readWordReg(0xf6))) + +# and we can do the same thing with the read()/write() calls if we wished +# thought I'd really not recommend it! + +x.write(bytearray(b'0xf40x2e')) + +x.writeByte(0xf6) +d = x.read(2) + +# WARNING: python 3.2+ call +print(str(d)) +print(int.from_bytes(d, byteorder='little'))