Oh I think I see what I missed - my acceptance code needs shifting to the MSB, not just the acceptance mask. So, looking at the diagram from the documentation for a standard frame, if I want to only accept CAN frames with ID of 0x10 (aka 0b000 0001 0000). https://i.imgur.com/vy1er2t.png My acceptanc...

Update: See this issue on github. Sounds like this might be a bug.

I'm having issues correctly setting the CAN acceptance filter to accept only messages with a particular ID. Say for example, I want to set the CAN controller to only accept messages with an ID of 0x10 (that's 0b000 0001 0000 as an 11 bit CAN ID). My understanding of the documentation (particularly t...

Hi, I've always thought that the way to check that an SD.open() was succesful was as follows. File myFile = SD.open("/path/to/file.txt", FILE_WRITE); if(!myFile) { // Oh no, myFile failed to open successfully } This is corroborated by all the examples I find online, and by the examples within the SD...

Its the difference between C and C++. You have to cast it with: (int)canTxPin, (int) canRxPin Thanks chegewara, but the macro is expecting gpio_num_t not int. The issue was due to C vs C++ differences but was hidden within the macro and had nothing to do with my inputs. CAN_IO_UNUSED is defined as ...

Solution: Expanded the macro and found the issue is that CAN_IO_UNUSED is defined as an int rather than a gpio_num_t. Replaced the macro with the expanded form, and casting CAN_IO_UNUSED to gpio_num_t. So can_general_config_t gConfig = CAN_GENERAL_CONFIG_DEFAULT(canTxPin, canRxPin, canMode); is repl...

I've used CAN in the ESP-IDF succesfully and am currently porting my CAN tester program for use in the ESP32 Arduino environment. I'm having issues with the CAN_GENERAL_CONFIG_DEFAULT() macro that don't make any sense to me. See the below function (which simply wraps up a default can_driver_install(...

Edit:

I have tried the usual 00001101-0000-1000-8000-00805F9B34FB with no luck.

I've also tried using a utility that can return a list of services (with their UUID) for any given Bluetooth server - but it's coming up blank.

I have a PC application which needs to connect to my ESP32 via a BluetoothSerial. This program has to make the connection using the Address and UUID of the ESP32. I've found the specific Address for my chip, but I can't figure out what the UUID should be to allow the connection - can anyone help me?...