Software Design

Software Framework

Framework design diagram

Business system startup process

Code Explanation

AI event management

Handling AI events

def ai_callback(args):
    global GPIO39 # audio PA GPIO
    event = args[0]
    msg = args[1]
    if event == 1:
        print('TIKTOK_RTC_EVENT_START') # enter room
        GPIO39.write(1)
    elif event == 2:
        print('TIKTOK_RTC_EVENT_STOP') # exit room
        GPIO39.write(0)
    elif event == 3:
        print('TIKTOK_RTC_EVENT_TTS_TEXT {}'.format(msg)) # TTS
    elif event == 4:
        print('TIKTOK_RTC_EVENT_ASR_TEXT {}'.format(msg)) # ASR
    elif event == 5:
        print('TIKTOK_RTC_EVENT_ERROR {}'.format(msg)) # Error
    else:
        print('TIKTOK_RTC_EVENT UNKNOWN {}'.format(event)) # Unknow

AI Init

Initialize AI objects, register callback interfaces, and configure AI conversation times.

tiktok = TiktokRTC(300000, ai_callback)

Reference operation log

import example
>>> example.exec('/usr/ai_main.py')
volume: 11
>>> lte network normal
ai task running

AI enter room

push down KEY S3 to enter room, start communicate, call tiktok.active(True) to active.

tiktok.active(True)

Reference operation log

# push KEY S3 to enter
rtc_queue key event 1
start rtc
TIKTOK_RTC_EVENT_START
TIKTOK_RTC_EVENT_TTS_TEXT 你
TIKTOK_RTC_EVENT_TTS_TEXT 你好
TIKTOK_RTC_EVENT_TTS_TEXT 你好有
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以帮
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以帮到
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以帮到你
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以帮到你的
TIKTOK_RTC_EVENT_TTS_TEXT 你好有什么可以帮到你的吗

AI exit room

push down KEY S2 to exit room, stop communicate, call `tiktok.active(False) to deactive。

tiktok.active(False)

Reference operation log

# push KEY S2 to exit
rtc_queue key event 2
stop rtc
TIKTOK_RTC_EVENT_STOP