The Si3933 is a three-channel low-power ASK receiver that can be used to detect digital signals with a low-frequency carrier frequency of 15KHz-150KHz and generate a wake-up signal. The internal integ
The first type: never accept projects that are just big promises.Some customers will enthusiastically find you and tell you how promising the project is, how large the shipment volume will be after th
A movie is a dream. Rewatching classic movies is like revisiting old dreams. There are many movies worth watching twice. I recommend them to everyone. Travel through time and space in light and shadow
Ku Wei, general manager of Alibaba Cloud IoT Division, once mentioned the difficulties in the implementation of IoT. For example, at the device manufacturer level: the connection of smart devices is u
Today, we completed the sample user entry and the query by ID card number:
The main program is updated as follows:
# -*- coding: gbk -*-
#!/usr/bin/pythonimport time
import serial# 导入模块
import threadi