ET-C02
CAN Bus Transceiver
3.3 V CAN transceiver for MCUs with built-in CAN
AED 12.00
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Overview
3.3 V CAN transceiver for MCUs with built-in CAN
The ET-C02 is built around the TI SN65HVD230 — ISO 11898-2 CAN, up to 1Mbps, 3.3V, bus-fault protected.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- ESP32 TWAI and STM32 CAN projects
- Vehicle and robot buses
- Multi-node sensor networks
Key features
What makes it different
Transceiver
TI SN65HVD230: ISO 11898-2 CAN, up to 1Mbps, 3.3V, bus-fault protected
Host
Any MCU with a CAN controller: ESP32 (TWAI), STM32 bxCAN/FDCAN, Teensy 4, RP2040 with can2040
Bus
Screw terminal CANH / CANL / GND, optional 120Ω termination
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| Transceiver | TI SN65HVD230: ISO 11898-2 CAN, up to 1Mbps, 3.3V, bus-fault protected |
|---|---|
| Host | Any MCU with a CAN controller: ESP32 (TWAI), STM32 bxCAN/FDCAN, Teensy 4, RP2040 with can2040 |
| Bus | Screw terminal CANH / CANL / GND, optional 120Ω termination |
| Size | 25.4 × 17.8 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 4-pin 2.54 mm header |
| Main IC | SN65HVD230DR (LCSC C12084) |
| Revision | Rev A |
| JP1 (default Open) | Bridge to add 120Ω termination |
|---|
Performance
Bus length
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 3V3 | Power | 3.0–3.6V |
| 2 | GND | Ground | Ground |
| 3 | TX | UART | From the MCU CAN TX |
| 4 | RX | UART | To the MCU CAN RX |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-C02 CAN Bus Transceiver (assembled)
- 1 × 4-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: 3V3, GND, TX, RX
Compare
Which industrial bus board?
| CAN Bus Transceiver (this board)This board | ET-C01 RS-485 Transceiver | ET-C10 USB-C to RS-485 Adapter | ET-C09 MCP2515 SPI CAN Board | |
|---|---|---|---|---|
| What it does | 3.3 V CAN transceiver for MCUs with built-in CAN | Half-duplex RS-485 for Modbus and long UART runs, 3.3 V | Modbus RTU from your PC over USB-C | CAN controller + 3.3 V transceiver over SPI |
| Interface | — | UART RX/TX + DE/RE direction pins, 3.3V logic | — | — |
| Best for | ESP32 TWAI and STM32 CAN projects | Modbus RTU sensors and meters | Modbus RTU from a laptop | CAN on Raspberry Pi and Arduino |
| Price | 12 AED | 9 AED | 28 AED | 9 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.