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M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port
M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port
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M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port
COMMU is a Muti-Communication-Interface-Converter. Integrated with 2I2C, 1TTL, 1CAN, 1RS485. Apparently, COMMU has packed with most of the series communications.
Default connection: TTL - UART0, RS485 - UART2. Since the ESP32 pin map is allowed for re-assign, you can re-assign or re-mapping the TTL or RS485 interface to other pins.
Be careful about TTL Interface. It is a UART Interface actually by default. But you can switch it to connect with UART2 after changing those jumpers(J6, J7, J9, J10).
Package Includes:
1x M5 Stack COMMU Module
Specifications:
| Interface | I2C x2, CAN x1, RS485 x1, TTL x1 |
| CAN Controller | MCP2515-1/SO |
| RS485 transceiver | SP3485EN-L/TR |
| Dimension | 54.2 x 54.2 x 13mm |
| Weight | 24gm |
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