Digital tube is a commonly used display device. When using it, it is necessary to match the LED with a current limiting resistor, and add a driving circuit when using a multi-digit digital tube. For e...
Bought this brand new, unpacked it just a week ago, powered it up just a few times, upgraded it to 200M, turned on all options, installed a better one, and now I'm selling this one as it's idle. I'm p...
I am using ATMEGA8a. There is no problem with single key press. But I have been working on the continuous code for several days but still can't figure out how to identify the continuous code. Could yo...
In a 24V environment, NE555 is used. The maximum voltage of NE555 is 15V, and the working current is 10~15mA. Add the current used for NE555 output, which is about 100mA.
I used a 78L12 to convert 24V...
The wait for the express delivery was a bit long this time. I opened the box and posted this on the day I received it. I hope I can gain something from this competition....
From: https://blog.adafruit.com/2019/03/17/circuitpython-in-space-pythonaut-circuitpython-adafruit-maholli404-zacinaction-smallsat-kicksat/ 408117 We released about 50+ CircuitPython-powered microsate...
Vertical resolution concept The first step in measuring analog signals with a digital oscilloscope is to use an ADC (analog-to-digital converter) to convert the analog signal received by the probe in...[Details]
The magnetic field line pattern that occurs in the end winding area of a flat wire motor is different from the magnetic field line pattern over the winding length in the core.
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In 2022, power battery companies expanded production rapidly, and orders for lithium battery equipment poured in.
According to incomplete statistics from Gaogong Lithium Battery, t...[Details]
Introduction: This paper mainly introduces the design skills of PIC microcontroller pin interrupt program. The pin change program designed in this way has low CPU overhead, high efficiency, and will ...[Details]
According to foreign media reports, if you use a flashlight to shine through thick fog, people can only see a blurry gray, but the light reflected back still contains useful information, but it is en...[Details]
MSC-51 3-byte and 4-byte floating point number calculation program is mainly used for data collection and uploading. After IEEE conversion, it is directly displayed on the host computer. ;This is t...[Details]
1. Introduction
When building a nailboard, first create a view using the flattened wire harness model, mark the dimensions in the 2D model, and create the wire harness BOM. The process of crea...[Details]
Swedish battery maker Northvolt and Norwegian aluminum supplier Hydro are partners in a joint venture called Hydrovolt that has built Europe's largest battery recycling facility.
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On September 20, Bloomberg reported that facial recognition technology may finally explode in the consumer market, thanks to Apple's newly released 10th anniversary model iPhone X. Let's follow t...[Details]
What is a hydrogen-oxygen fuel cell?
Fuel cells are a new power source with great development prospects. They generally use hydrogen, carbon, methanol, borohydride, coal gas or natural gas...[Details]
TSMC's CoWoS advanced packaging production capacity is in short supply. Recently, it has set up a special job fair to recruit talents for advanced packaging factory technicians. The average annual ...[Details]
1. Special applications of positive and negative voltage fixed integrated regulators
Many electronic instruments and operational amplifiers require positive and negative symmetrical power supplies....[Details]
Recently, according to foreign media reports, Singapore's telecommunications regulator IMDA disclosed two new realmi devices on its website - realme 5i and realme C3, whose model numbers are R...[Details]
Before learning FOC control, I had no idea about it. I only knew it was called field-oriented control in Chinese. Because the company's product development required precise position control of perm...[Details]
The automatic power-off function of CNC machine tools is an important safety protection measure that can effectively prevent equipment damage and personal injury caused by power failure, overload, ...[Details]
DIY/Open Source Hardware
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