Raspberry pie 57/100 - Pico connected to Internet of things NB IOT

Recently, a project wanted to monitor the abnormal situation of an object on the construction site. This kind of thing should be able to stand by for 20 ~ 30 days with a 3.7V battery. Under normal circumstances, it is almost in a static state, and there will be a little vibration due to nearby interference. When there is a large movement, it sh ...

Posted on Fri, 03 Dec 2021 21:24:00 -0500 by craige

[raspberry pie] Python development industrial computer emergency stop design

background We used raspberry pie to replace PLC and host computer in some industrial products, and introduced AI and machine vision into the industrial field with the help of the computing power of raspberry pie. The previous products had no action mechanism, and only output the results to the indicator light, buzzer or display, without potenti ...

Posted on Wed, 01 Dec 2021 21:56:27 -0500 by Panjabel

Raspberry pie 47 / 100 - study out instructions in PIO

About PIO(Programmed I/O) programming in Pico of raspberry pie, three articles have been written earlier: When you first know the PIO in Pico, a more advanced way is to make the small light flash Deeply study the instruction cycle in PIO Understand the assembly code in PWM There are only 9 assembly statements in PIO, but it can combine ma ...

Posted on Wed, 10 Nov 2021 07:56:10 -0500 by aesthetics1

Raspberry pie 4B connects the computer through CH340 to realize USART serial communication (C language and Python version)

preface The peripheral of raspberry Pie 3/4b contains two serial ports, one is called hardware serial port (/ dev/ttyAMA0) and the other is called mini serial port (/ dev/ttyS0). The hardware serial port is realized by hardware. There is a separate baud rate clock source with high performance and reliability. The mini serial port has lo ...

Posted on Sat, 09 Oct 2021 23:13:15 -0400 by syacoub

Beginners learn raspberry pie 4B from scratch --- installing the system and serial communication (nanny raspberry pie installation tutorial)

Download Image After a few days of trying, I sorted out a completely feasible way to install linux into raspberry pie. The first is to download the image. What is recommended here is Tsinghua Open Source Mirror Click the right side to get the download link   Then pull down the left operating system to select raspberry pie     ...

Posted on Wed, 06 Oct 2021 08:34:11 -0400 by TVining