Failed to use CAN with M5Stack
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返信: M5Stack with CAN
I tried the follow library, changed pin to GPIO17/16
https://github.com/nhatuan84/arduino-esp32-can-demoBut it does not work. I used oscilloscope to check the output from pin GPIO 17/16, There is no any output.
Could someone give me an example code that works, and a picture of connection.
Thanks! -
@hayashi
Hi hayashiI want to confirm which module you used?
Is that one?
https://www.aliexpress.com/store/product/M5Stack-New-COMMU-Module-Extend-RS485-TTL-CAN-I2C-Port-with-MCP2515-TJA1051-SP3485-Development-Board/3226069_32954475633.html?spm=a2g1y.12024536.productList_5885011.subject_1 -
@watson
I didnot use any extend module, only connect M5Stack to a CAN-tranceiver. Also I am going to buy that module. Could you tell me how to use that module? -
@hayashi
I have some test program about thisCOMMUmodule. Recently, I'll add those example codes to m5stack's documentation. -
@watson
Thank you, please inform me if you upload that sample codes.
I have another question, why there is a CAN controller MCP2515 on the extend module? Does not M5STACK include CAN controller? -
@hayashi
Hey, here's the example about CAN.
https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/COMMU/Arduino/CAN
