[i=s]This post was last edited by dcexpert on 2021-2-19 08:40[/i]From: https://forum.micropython.org/viewtopic.php?t=9829p=55021#p55021Ported from the arduino library, use two GPIOs, one as a touch in...
I want to use PCA to do hardware PWM. What is the fastest speed I can achieve? I want to get 140KHZ but I find that it needs at least 256 divisions....
I 14:24:20There is no difference between 50 pieces and 100 piecesSTC 14:25:53The price is the sameSTC 14:26:02But you have to buy the whole plateSTC 14:26:09160 per plateI 14:26:28How many pieces are ...
What are the causes of PCB board welding defects?
In order to ensure the overall quality of PCB boards, excellent solder should be used during the production process to improve the solderability of PC...
TI has launched the TCP/IP NDK (Network Developer's Kit) development kit in conjunction with the C6000 chip. Its main components include: (1) Program libraries supporting the TCP/IP protocol stack. Th...
vivo NEX 3 will be released next month. New features of the phone have been revealed. The general manager of vivo product line @栾心林Lance confirmed on Weibo that vivo NEX 3 will not have physical butt...[Details]
According to official news from Google, the 2019 Google Developers Conference will be held in Shanghai on September 10 and 11. The sharing topics of this conference will cover Android, Flutter, Web,...[Details]
As a selected supplier of visual sensing technology for Ford's advanced driver assistance systems, Mobileye will provide the EyeQ series of devices and visual processing software to support Level 1 a...[Details]
1. Measurement of DC current When measuring, set it to the DC current range and connect it in series with the circuit, as shown in Figure 2. Pay attention to the positive and negative polarity. When ...[Details]
If you want the OK6410 development board and PC to transfer files over the network, the development board must first be able to PING the PC!
First, use a USB to serial cable to connect the developmen...[Details]
With the gradual popularization of Type C, today's notebook interfaces have begun to show two major types - one type tends to be "more is less", the more interfaces on the body, the wider the adaptab...[Details]
How far are we from true autonomous driving? The answer may be "unpredictable". Let's talk about a technical detail that no one has ever mentioned before - assuming a car is driving autonomously in...[Details]
Lei Technology held the third round of public testing activities, and the product of this public testing is also the "largest" of the four products so far - OPPO Smart TV R1 65-inch version. As a n...[Details]
Crystal calibration and matching load standing wave ratio measurement
I. Experimental purpose1
. Further familiarize yourself with the use of the three-centimeter microwave test s...[Details]
The compilation environment is iar, and the chip is stm8s105s4. The external crystal oscillator is 8M. The main clock of the following content is also written with this clock. clk1_init uses the exte...[Details]
The so-called "manhole", as the name suggests, is a hole opened in the processing system to allow workers to enter for cleaning, maintenance and inspection. However, this name may soon become inappro...[Details]
Abstract: Switching power supply has a prominent electromagnetic interference problem due to its own working characteristics. Starting from the model of electromagnetic interference of switching po...[Details]
The base station power system is one of the supporting systems for mobile main equipment and transmission equipment, involving a variety of professional knowledge such as power mechanics, chemistry...[Details]
TFN FB28 cable fault rapid detection system can solve various faults of power cables of 35KV and below. The ranging host adopts three-level pulse advanced arc reflection pre-positioning technology, w...[Details]
Circuit Features
(1) The digital voltmeter displays voltage and current with a display accuracy of 0.1 V and 0.01 A.
(2) Overcurrent protection function limits the current through the amme...[Details]
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