NodeMCU-BlackBox

ESP8266 based CAN-Bus Diagnostic Tool

ID-Config for SMART CDI 2003

Introduction

I2C Display Connection level shifter

Display	ESP8266
SDA	D2
SCL	D1
GND	GND
VCC	5V external

Please note: The NodeMCU is not official 5V tolerant. Please using a level shifter for the backpack.

MCP2515 Connection

MCP2515	ESP8266
INT	D4
SCK	D5
MOSI	D7
MISO	D6
CS	D3
GND	GND
VCC	3V3
VCC-TJA5010	5V separately/external

Please note: The NodeMCU is not official 5V tolerant. You need to cut off the power supply of the TJA1050-Chip and connect it separately to the 5V of an external power supply, because the TJA1050-Chip can not run with 3V3.

For more informations:

• https://www.raspberrypi.org/forums/viewtopic.php?t=141052

Libraries

• https://github.com/esp8266/Arduino

• https://github.com/coryjfowler/MCP_CAN_lib

• https://github.com/esp8266/Arduino/blob/master/doc/filesystem.rst

• https://github.com/fmalpartida/New-LiquidCrystal customized

Configuration

• Board: WeMos D1 R2 & mini or NodeMCU 0.9/1.0
• Flash Size: 4M 3M SPIFFS
• CPU Freq.: 160 MHz
• Upload Speed: 921600

Parts

• MCP2515
• NodeMCU
• I2C Display 4x20
• Level Shifter

License

This project is licensed under the MIT License - see the license file for details.