When used with the FIRE main control, due to a PSRAM pin conflict, please switch the DIP switch pins of the module base to TX(0/13), RX(5/15). The device must then be powered via USB or an external DC source.
When used with Core2 series main controls, due to the different order of the base pin array, the COM.X base pins TX(16) and RX(17) correspond to the actual pins TX(14) and RX(13) of the Core2 main control. The equipment must be powered by an external DC source.
Note: When using a CORE2 or CORE2-FOR-AWS main control to drive the module, please use the DC power input of the base and set the power mode to input mode (see code below), otherwise the module will not start normally.
//mbus_mode_t:
//kMBusModeOutput: Use USB or battery power
//kMBusModeInput: Use external 5V power supply or DC interface
M5.begin(true, true, true, kMBusModeInput);You might also like