from pyb import UART

from pyb import LED

#等待ESP-01模块初始化，忽略启动时的内部信息

pyb.delay(1000)

ESP_UART = UART(4,115200,timeout=100)

def sendToUart(msg):

    ESP_UART.write(msg+'\r\n')

CWMODE_CUR = 'AT+CWMODE_CUR=1'

CWJAP_CUR = 'AT+CWJAP_CUR="TurnipSmart","turnip2016"'

CIPSTART = 'AT+CIPSTART="TCP","192.168.1.116",80'

CIPSEND = 'AT+CIPSEND=%s'

msg = 'Hello,I am TPYBoard.'

if __name__  == '__main__':

    sendToUart('AT')

    while True:

        if ESP_UART.any()  > 0:

            buf = ESP_UART.read().decode().replace('\r','').replace('\n','').replace(' ','')

            print(buf)

            if buf.find('busyp') > -1 or buf.find('ERROR') > -1:

                # AT指令执行失败

                # 结束程序排查原因

                break

            elif buf.find('ATOK') > -1:

                # 说明AT指令执行成功

                # 成功进入AT指令模式

                # 设置WIFI模式为sta模式

                sendToUart(CWMODE_CUR)

            elif buf.find(CWMODE_CUR) > -1:

                # 设置sta模式成功，连接AP

                sendToUart(CWJAP_CUR)

                LED(1).on()

            elif buf.find('WIFIGOTIP') > -1:

                # 连接AP成功

                # 开始连接TCP Server

                pyb.delay(150)

                sendToUart(CIPSTART)

                LED(2).on()

            elif buf.find(CIPSTART) > -1:

                # 连接TCP Server成功，发送数据

                CIPSEND = CIPSEND % str(len(msg))

                sendToUart(CIPSEND)

                LED(3).on()

            elif buf.find('>') > -1:

                # 发送数据

                sendToUart(msg)

                LED(4).on()