N11 EVK
User Guide
Copyright © Neoway Technology Co., Ltd
5
3.2 M5X0-PWR Board
The above figure shows an M5X0-PWR board, which supplies 3.8V/0.6A power for the module and
outputs 3.3 V CMOS level TXD and RXD for the communication between the computer and the
module. It is connected to the N11 EVB through 4-pin cables, which have been soldered to the power
board in a sequence of red, black, yellow, and green at one end and should be inserted into the plug of
the EVB at the other end. There are two pins on the power board and they can control the power
supply of the module.
Among the 4-pin cables:
Green: TXD, output, 2.85 V CMOS level
Yellow: RXD, input, CMOS level, 3.3 V maximum
Black: Ground
Red: VBAT, 3.6 V to 4.5 V, 3.8 V is recommended
To use the UART function, install the USB-to-UART driver (PL2303) first. If an MCU is used to control
the module, connect the as shown in the following figure:
RXD
TXD
TXD
RXD
GND
GND
DTE
DCE
3.8V
