The CAN32 development board is designed to allow easy projects and testing of the ESP32 in a CAN-BUS environment. This board has many features that will get you started without the need for externa...Read More…
The CAN32 development board is designed to allow easy projects and testing of the ESP32 in a CAN-BUS environment. This board has many features that will get you started without the need for external breakouts.
New on V2:
One of the main requirements for this dev board was a high-quality PCB (gold coated pads) and brand-name parts. Broken-out pins can be used for adding various other modules and sensors. The automotive synchronous step down DC-DC converter is able to provide 500mA @3.3V (roughly 200mA for external devices). An ESP32u with U.Fl connector allows you to connect U.Fl WiFi antennas or a U.Fl to RP-SMA-F for larger duck antennas.
All components are genuine brand-name, high quality, high-temp parts that meet or exceed recommended electrical requirements.
GPIOs/power broken out:
Four larger vias allow connection of CAN H and L, 12V (max. 16V), GND. The board can be powered via USB or vehicle battery 12V (max. 16V), but 12V is not required if powered via USB.
On-board LEDs signal power to board (red), USB->UART RX (orange), USB->UART TX (red). Two PWM LEDs on GPIO 13/15 are user programmable.
The ESP32 CAN-BUS protocol is still under development (as are most features), but there are working examples available (https://github.com/ThomasBarth/ESP32-CAN-Driver). Each board is tested, CP2102 pre-configured, and an Arduino Wifi-Scan example is pre-programmed.
Note V2 board: SD Card must be ejected while programming. SD Card CS pin is GPIO2; SD.begin(2) SD Card MISO = GPIO19, MOSI = GPIO23
Note V1 board (legacy): Pull CAN RS (pin 25 / GPIO16) LOW to enable high-speed CAN. HIGH = CAN sleep mode. SD Card CS pin is 27 (GPIO17). Set this in the SDFat library variables.
Thomas | May 14, 2018
Chase | Jan. 13, 2018
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