Is it possible to connect two M5Atom with a cable...
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Hello,
Is it possible to connect two M5Atom with a cable by UART - without any additional equipment?
"White" socket used to connect sensors?
Possibly with an interleaved cable?
And using interrupts?Kind regards,
Kajetan
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Depends what you what you want to achieve.
If you mean to connect for programming/flashing the module - probably not.
You would need to reconfigure the UART0 to pin 26/32 - I'm not even sure this can be done.
If you just want to connect a "serial console" to communicate with your own running program then yes.
You just need to set up UART1 or 2 to GPIO26 and 32 in your own program.
Your console must be 3.3V TTL though
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Sorry!
For some reason I completely overlooked that you wanted to connect two devices together.So the answer is yes! Get a Grove cable:
https://shop.m5stack.com/products/4pin-buckled-grove-cable?variant=16804807082074Remove/cut the the red (+5v) wire and setup the UARTs on both devices with "crossover" pin-config.
I.e.:- Device A UARTx Tx=32 Rx=26
- Device B UARTx Tx=26 Rx=32
or vice versa.
I'm not sure what you mean by "using interrupt", but you could (with same cable) define say pin 32 as output on device A and the same pin as an input defined to an interrupt on Device B and then perhaps the opposite with Pin 26