User's Manual

GPIO33

I/O

VDD

3.3V

POWER

GND

POWER

GPIO57

I/O

ADC_IN0

ADC Input0

GPIO58

I/O

ADC_IN1

ADC Input1

I2C1_SCL

I/O

GPIO24

I/O

I2C1_SDA

I/O

GPIO25

I/O

Note：

1. UART 0 is used for general transparent transmission , and UART1 is used for the

output of debug information,and the serial ports output level is described with

reference to DC characteristics,by default.

2. NRST is that module hardware resets ,and low level is effective ,restars after

module resets,adn keeps original configuration information. The inner existing

RC electrify restoration circuit of module itself.

3. Under the default situations,PIN 12 (GPIO33) is the network light pin,is used for

external LED,the configuring condition of indicating module.

4. Under the default situations,PIN11 (GPIO35) is the module software reset pin,and

high level is effective,and former configuration information of the back module

that resets is eliminated similar factory reset.

5. All GPIO all support PWM output.

6. TX and RX are used for communicating with the ppu of 3V power supply among

the UART0,and the serial ports output level is described with reference to

3.3joint DC characteristics.

7. Unsettled processing is done in the GPIO suggestion that is not used,and forbids

on the circuit that to GPIO35,GPIO37 does and draws processing.