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Grin V4 - Communication Port; Wiring Strategies; Cycle Analyst Based Hookup

Grin V4
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Baserunner Controller User Manual
Rev 1.0
2.6 Communication Port
The TRRS jack embedded in the controller may be used for connecting to a
computer, Android smart phone, or potential Bluetooth dongle (future product).
The communication standard uses a 0-5V level serial bus. Grin sells a 3m long
TTL->USB adapter cable to connect the unit with the USB port of a standard
computer. This is the same communication cable used with the Cycle Analyst
and Satiator products. Third party USB->Serial cables, such as FTDI’s part
number TTL-232R-5V-AJ are also compatible.
A USB-OTG adapter then is needed to connect to an Android smartphone via the
phone's smaller Micro USB or USB-C port.
3 Wiring Strategies
The V4 Baserunners can be hooked up to to the controls of an ebike system in
one of three ways. Either under the control of a V3 Cycle Anlayst, under the
control of a 3
rd
party display, or headless with no display at all.
3.1 Cycle Analyst Based Hookup
The setup using the latest V3 Cycle Analyst (CA3-WP) provides the most
versatility with mode presets, customizable PAS behavior, advanced regen
features, and easy performance adjustment on the road.
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