CAN
CAN Bus Interface
- Overview
- Commands
- On-Module Code
CAN bus interface module for automotive and industrial networks
Key features • Support CAN V2.0B | Resources 📄 Schematics PID: 0x030001 |
Modules ship without cables to reduce waste. Some specialty boards include a USB cable; for the rest, see Cables to add cables to your order.
| Function | Description |
|---|---|
Bitrate(b) | Sets the b bitrate (125K, 250K, 500K, 1M) |
RxFull() | Returns 1 if there is a received CAN message. |
RxRd() | Reads a received message. Returns the ArbID of the message or -1 if none. b9 is a 9-byte array contains the message body, with first element containing DLC followed by 0 to 8 bytes of data. |
TxFree() | Returns 1 if ready for new data, or previous transmit request succeeded. |
TxReq(i,l,b9) | Request to send a message with i EID and l length of the b9 data array. Returns 1 if a message was posted or 0 if busy to take a new one. |
DVer() | This driver version. |
Samples​
Example code for using this module's commands in popular languages.
New here? See Get Started to connect a module and send your first command.
- Python
- MicroPython
- JavaScript
- .NET
- Arduino
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Peek under the hood
The script below is this module's driver — it teaches the hardware how to respond to the commands listed above. It ships pre-loaded from the factory; most users never need to open it.
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Code that runs directly on this module's MCU. See On-Module Code for an overview.
- Script
- Arduino IDE
This example runs using the default DUELink Internal Engine using its Scripting Language, and it expects the module's driver to be loaded first, see the Commands Tab.
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See Arduino IDE page for more info.
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Ordering Info
| Product | Part Number | Price |
|---|---|---|
| DUELink CAN | GDL-CMCAN-B | $14.95 |