CAN32 ESP32 Development Board is Designed for CAN Bus Applications

If you want a WiFi + BLE board to play with CAN bus, one option is to go with the versatile Olimex ESP32-EVB Board, but if you need something more compact CAN32 board might be worth a look as the board is specifically designed for projects and testing of the ESP32 in a CAN-BUS environment.

Click to Enlarge

CAN32 board hardware specifications:

  • Wireless module – Espressif Systems ESP32-WROOM WiFI + Bluetooth LE module
  • External storage – micro SD slot
  • CAN Bus chip – Texas Instruments SN65HVD230DR CAN-BUS transceiver with sleep mode
  • Expansion
    • Unpopulated headers exposing: SVP/SVN, GPIOs, I2C, UART, GND, 3.3Vm 5.0V
    • 4 larger vias for CAN H and L, 12V (max 15V), and GND
  • Debugging / Programming – micro USB port via Silicon Labs CP2102N USB to UART
  • Misc – C&K soft-touch low-profile buttons for reset and boot; 4x LEDs for power, ESP, UART Tx/Rx
  • Power Supply
    • 5V via micro USB port
    • Optional 12V (up to 15V) via vehicle battery
    • Texas Instruments <15V regulator for power from USB and/or vehicle voltage
    • 800mA LDO providing power up to 3.3V @ 500 mA to external devices
  • Dimensions – TBD

Schematics don’t seem to be available, and the developer mentions ESP32 CAN BUS protocol is still under development with working examples available on Github. The board comes pre-loaded with an Arduino Wifi-Scan example sketch.

CAN32 can be purchased on Tindie for $39 plus shipping. That’s a bit more expensive than the Olimex board selling for 26 Euros (~$32 USD). The latter is equipped with Microchip MCP2551 CAN transceiver which appears to have similar features and price ($1) as the TI chip found in CAN32.

Via ESP32Net on Twitter

Share this:

Support CNX Software! Donate via cryptocurrencies, become a Patron on Patreon, or purchase goods on Amazon or Aliexpress

ROCK 5 ITX RK3588 mini-ITX motherboard
Subscribe
Notify of
guest
The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment.
3 Comments
oldest
newest
agumonkey
6 years ago

Hi,

what’s the olimex model ?

tkaiser
tkaiser
6 years ago

@agumonkey
Check the invisible 1st paragraph where the invisible 1st link is hidden 😉

bob
bob
6 years ago

15V limit is too small for lead battery usage with alternator like a car.
If you have an misconnection on wirring alternator / alternator reguator fryed or bad battery, spikes over 15V can happen.
18-24V tolerance is more secure

Boardcon Rockchip RK3588S SBC with 8K, WiFI 6, 4G LTE, NVME SSD, HDMI 2.1...