Arduino Canbus Dashboard

Introduction

CAN standards

A controller area network bus (CAN bus) is a vehicle bus standard.

• Differential signaling
• CRC

ECU Electronic Control Unit

CAN 2.0 (classical CAN)

• eight bytes
• a typical baud rate of 500 kbit/s
• CAN2.0A, CAN2.0B,

CAN FD (releases 2012).

Some de facto standards for mechanical implementation: 9-pin D-sub type male connector

• pin 2: CAN-Low (CAN−)
• pin 3: GND (ground)
• pin 7: CAN-High (CAN+)
• pin 9: CAN V+ (power)

CAN C - Engine CAN (also known as chassis CAN): Fast communication speeds 125 kbps or 500 kbps

CAN B - Interior CAN (also known as body CAN): Communication speed 83 kbps

CAN and Arduino

Arduino shield

OBD2

On-Board Diagnostic protocols or the OBD2.

CAN bus and Grafana

Grafana-Athena

https://www.csselectronics.com/pages/telematics-dashboard-open-source

MB

General

https://www.benzworld.org/threads/the-230-can-bus-and-how-to-test.1988297/

• X connector

https://www.benzworld.org/threads/troubleshooting-the-can-bus.1989185/ W220 CAN B

• X30/6
• X30/5
• X30&4
• green and white cables; clip to open.

CAN NETWORK REPAIR GUIDE.pdf https://mbworld.org/forums/attachments/cl-class-w215-6/easy-can-network-repair-guide-735364/can-network-repair-guide-423584d1578925674

• Wake-up signal: Door switch, rear SAM, EIS, N70
• Reference Materials for Further Reading
  • GF00.19-P-0001PP Extended vehicle network function
  • SN00.19-P-0004GH Complete networking (163 as of 9/01)
  • GF54.00-P-0004A Data bus system function
  • GF54.00-P-0005A CAN data bus, function
  • GF54.00-P-0005-01A CAN data bus data telegram
  • GF54.00-P-0005-02A CAN data bus specification
  • GF54.00-P-0005-04A CAN data bus applications
  • GF54.00-P-0999ZZ CAN data bus, contents, function description
• W203: CAN H 0.65/0.025V, CAN L 4.65/11.0V

Instrument clusters eg dashboard

"The instrument cluster has its own Robert Bosch CAN and not included here"