Getting Started¶
These following instructions will help you to install and run the project on the ESP32 for development and testing purposes.
Prerequisites¶
Which hardware components and software are needed and how to install them
Hardware components¶
- ESP32 by Espressif
- CAN-Transceiver
- cables
- D-SUB connector (male)
Software¶
- Arduino IDE - The tool for flashing the ESP32
Connecting the hardware¶
Connect the following Pins from the ESP32 with the specified Pins of the CAN-Transceiver
| ESP32 | CAN-Transceiver | |
|---|---|---|
| 3.3 Volt | 3V3 | 3V3 |
| Ground | GND | GND |
| CTX | GPIO5 | CTX |
| CRX | GPIO4 | CRX |
Connect the following Pins from the CAN-Transceiver with the specified Pins of the D-SUB connector
| CAN-Transceiver | D-SUB connector | |
|---|---|---|
| CAN High | CANH | Pin 7 |
| CAN Low | CANL | Pin 2 |
Install and configure the Arduino IDE¶
- Download and install the Arduino IDE
- Open Preferences in the Arduino IDE ( File -> Preferences )
- Include https://dl.espressif.com/dl/packageesp32index.json under Additional Boards Manager URLs
- Open the Board Manager ( Tools -> Board -> Boards Manager… )
- Search for esp32 and install the esp32 by Espressif Systems
- Finish! The installation should be completed in a few seconds
Upload the Project to the ESP32¶
Connect the ESP32 via USB with a Computer and follow the instructions
- Open the Arduino IDE
- Choose a ESP32 Board ( Tools -> Board -> ESP32 Arduino)
- Choose the used port ( Tools -> Port: -> COMx )
- Download the Project and open the “CAN_Interface.ino” ( File -> Open…)
- Press the Upload Button in the Arduino IDE
- If everything went as expected a “Done uploading.” message should appear