ANT+/BTLE to MQTT

tny · September 18, 2020, 2:03pm

For Ant+:
One simple option is probably a Raspberry Pi, Ant+ USB stick and this python library and example:

Tigge/openant/blob/master/examples/heart_rate_monitor.py

# ANT - Heart Rate Monitor Example
#
# Copyright (c) 2012, Gustav Tiger <gustav@tiger.name>
#
# 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
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The library is a bit of a mess from what I remember, but it did work for the most part. The example is a bit cryptic unless you are familiar with Ant+ specs. If you want to delve deep into ant+ world, all the specs can be found from https://www.thisisant.com/ you just have to register and accept a bunch of slightly disturbing license agreements.

For BLE:
A new Raspberry Pi with BLE support and implementing something using the bluez stack might work? I haven’t tried it but there are some examples like this behind google:

For truly embedded Ant+/BLE development I’ve personally done some fun projects using NRF52832 chips. Plenty of examples for connecting to and pretending to be various BLE/Ant+ HR devices. The chip doesn’t have wifi/ethernet though so it doesn’t suit your needs of being able to push stuff to MQTT.

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ANT+/BTLE to MQTT

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