chirpy-starter/_posts/digital-dashboard.md

image
path https://github.com/Sneupi/digital-dashboard/blob/main/exampleproject.jpg?raw=true

digital-dashboard

Source code for ESP32 based CAN-bus powered dashboard.

Reprogrammable to interpret & display any CAN-bus containing vehicle's CAN data.

Originally developed for Wildcat Formula Racing (University of Arizona) Formula SAE race car.

Get Started

1. Install VS Code
2. Install PlatformIO extension for VS Code
3. Plug ESP32 and restart VS Code
4. Within PlatformIO extension "Clone Git Project"
5. Upload to ESP32 using PlatformIO sidebar

Re-Configurability

Configured as-is for example project below.

1. Pinouts for CAN transceiver and pushbutton. Open pinout.h source files to do so.

2. Vehicle-specific CAN-bus interpretation, open CAN source files (limits.h, TranslateCAN.h) for config instructions. For help decoding your vehicle, see related tool can-analyzer.

3. Compatible with wide range of TFT displays. Read TFT_eSPI library documentation and edit library files accordingly (User_Setup.h or User_Setup_Select.h).

Example Project

Project for University of Arizona FSAE racecar. Interprets custom MoTeC M150 CAN bus protocol.

IMPORTANT

ESP32 module requires 5V power (VIN or Micro USB) but GPIO pins operate at 3.3V

Parts List

ESP32 Microcontroller

CAN Transceiver (SN65HVD230)

TFT Display 5" (SSD1963)

...And any pushbutton will work

Pinout

Note: PB = Pushbutton

Note: TFT_DC may be labeled "RS" depending on the TFT

NAME	ESP32 GPIO
PB	5
---	---
CAN_RX	18
CAN_TX	19
---	---
TFT_CS	33
TFT_DC	15
TFT_RST	32
---	---
TFT_WR	4
TFT_RD	2
---	---
TFT_D0	12
TFT_D1	13
TFT_D2	26
TFT_D3	25
TFT_D4	17
TFT_D5	16
TFT_D6	27
TFT_D7	14

Common Issue: ESP32 not detected as COM port

You may try installing VCP drivers