Table Of Contents; Overview - KDE Direct KDECAN Protocol KDE-UAS125UVC-HE Manual

Overview

The KDECAN bus firmware update enables KDE UVC ESCs to communicate and actively monitor critical system
components through CAN bus. This update allows telemetry and real time monitoring for enhanced safety
during operation. Any device with a CAN bus transceiver is capable of communicating with a KDE UVC ESC. This
works by having the device send CAN messages to the ESC of which the ESC responds accordingly. This document
defines the message structure and protocol necessary to communicate with UVC ESCs through CAN bus.
Contents
KDE Direct, LLC. License Agreement ....................................................................................................................... 1
Overview ................................................................................................................................................................. 4
List of Figures .......................................................................................................................................................... 5
KDECAN Capabilities ............................................................................................................................................... 6
CAN Bus Protocol .................................................................................................................................................... 6
System Configuration .............................................................................................................................................. 6
KDE UVC Pinout Schematic ..................................................................................................................................... 6
Wiring Schematic ........................................................................................................................................ 8
ID Assignment ............................................................................................................................................. 8
Method 1 (Manual ID Assignment) ................................................................................................. 9
Method 2 (ESC Enumeration) ....................................................................................................... 10
Communication Definitions and Algorithms ........................................................................................................ 11
Data Types ................................................................................................................................................. 11
CRC Algorithm ........................................................................................................................................... 11
CAN Bus Frame Structure ..................................................................................................................................... 12
CAN Bus Messages .................................................................................................................................... 14
Warning Signals and Errors ....................................................................................................................... 23
FAQ ........................................................................................................................................................................ 25
Primary Throttle through CAN bus ....................................................................................................................... 26
KDECAN Brand Guidelines .................................................................................................................................... 26
Troubleshooting .................................................................................................................................................... 27
REV 1.1.1 (Last Modified May 25, 2023)
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