Getting Started with Seeed Studio XIAO RA4M1 | Seeed Studio Wiki

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Getting Started with Seeed Studio XIAO RA4M1 | Seeed Studio Wiki

XIAO RA4M1 - Smallest Dev Borad Based on 32-bit Renesas RA4M1, Arduino IDE-Ready, 19 GPIOs, RGB LED, CAN BUS, USB 2.0

https://wiki.seeedstudio.com/getting_started_xiao_ra4m1/

[artmekab]

Any example with CAN? What library to use etc.

[mkoch44]

On which pin is the 12-bit DAC? Is there a small code example for the DAC?

[mkoch44]

The DAC is on pin A0.

[mkoch44]

1. Which options are possible for the analogReference() function, and to which pins must an external reference voltage be connected?
   The default configuration does obviously use the 3.3V supply as reference, and there is a lot of noise in the ADC measurements.
2. Obviously the DAC does also use 3.3V as reference by default. Is it possible to use another internal or external reference for the DAC?

[mkoch44]

It's disappointing that there is so much noise in the ADC values. The SAMD21 module works much better in the same circuit.

[Jabadabado]

Is there an STL file for this board? (Maybe any other board has the same dimensions? )

[Lenigan96]

Any files for EAGLE?

[nfs0619]

Thanks for reaching out! The files we can provide are limited to those available in the Resources section of the documentation here. If you have any specific questions about using the product, feel free to contact our technical support team at [email protected]. They will be happy to assist you further.

[wavejumper00]

Which pins are the CAN pins? It is shown twice in the pinouts - the "front" side pinout shows D9 as CRX0 and D10 as CTX0. And on the “back” side pinout, it shows D17 as CRX0 and D18 as CTX0. I have doubts that it is in really in two places.

Also, please provide instructions on how to use this native can controller in the RA4M1 with only an external transceiver. The existing examples seem to show the seeed studio breakout board which has SPI connection to external controller which then goes to external transceiver.

I want to use the native CAN TX/RX to connect to only an external transceiver.
Thank you.

[nfs0619]

For clarification on the CAN pins and instructions on using the native CAN controller with an external transceiver, we recommend contacting our technical support team at [email protected]. They will be able to provide you with more detailed guidance on your setup and usage.

[Lenigan96]

Hey everyone! I have a new question... I have little project and I was wondering... Is it possible to o connect the ESP3253 (Master) with the RA4M1 (slave)?

[nfs0619]

It’s definitely possible to connect the ESP32S3 (master) with the RA4M1 (slave) for communication. However, you'll likely need to design the circuit yourself to match the interfaces and communication protocols between the two. Make sure that both can properly connect and communicate.