From: https://gitee.com/makerdiary/python-keyboardA USB and Bluetooth dual-mode keyboard that supports Python, using CircuitPython.Main program :
import time
from board import *
import digitalio
impor...
[color=#222222][size=13.63636302947998px] I bought a brand new Galileo development board some time ago, but since I don’t have time to develop projects, I’m selling it at a special price now. It’s bra...
I cross-compiled a Linux kernel according to the online tutorial, but it didn't run on arm2440 after being downloaded. The displayed output information is: Read chip id = ec76 Nand flash status = c0, ...
[i=s]This post was last edited by paulhyde on 2014-9-15 03:44[/i] Sometimes when you need a subroutine that requires precise delay, it is difficult to control it using C language. In this case, you ca...
Because I want to write a program about SATA I/O, I have been browsing www.t13.org these days. However, after reading ATA-1, I did not find the correspondence between command registers and ports (1f0-...
This is the function for initializing uart in the whole program. After changing FR5969 to F5529 in IAR, there will be three errors: 1: P2SEL1 |= BIT0 | BIT1; 2: P2SEL0 &= ~(BIT | BIT1); 3: UCAOMCTLW= ...
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
1. Introduction
This design was made for participating in an electronic design competition. It effectively solved the problem of the operation and control of an electric car on a seesaw. The s...[Details]
With the advent of increasingly powerful processors, image sensors, memory, and other semiconductor devices, as well as the algorithms that enable them, computer vision can be implemented in a wide...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
As people's requirements for safety and comfort in the process of driving cars continue to increase, automotive radars are widely used in the car's adaptive cruise system, collision avoidance syste...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]