CAN-BUS Shield V2 (Seeed Studio) and Arduino Uno R3.
I need lo load a USB fash drive to log incoming CAN messages.
Can someone suggest a product which will connect on top of the CAN BUS shield and not fight over the pins.
Hi Alan,
The CAN-BUS shield has an SD Card slot on board for data logging, so I’d recommend using that and just keeping a cheap USB SD card reader to hand.
You could also try the SD Data logging shield from Adafruit:
Or the Sparkfun OpenLog Qwiic:
As you can see from the schematic, the CAN-BUS shield has a lot of free pins, including RX/TX:
So if you wanted to have it output over USB you could even just use a serial.write() command, or setup a Softwareserial port on some unused pins and use a USB -> UART converter.
If you really need to use a flash drive and can’t use an SD card for some reason, you’re going to need a USB Host.
We’ve got USBDroid and the USB Host Shield from Sparkfun:
I think both of these will have some Pin conflict with the CAN-BUS shield on the MOSI-MISO so you will need multiple Arduino’s - one for the CAN-BUS and one for the USB flash drive, and implement a communication protocol for them.
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Thank you,
I will study in depth.
Al
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