[i=s]This post was last edited by dcexpert on 2021-6-7 22:06[/i]Wireless midi control based on nRF52840 and circuitpython.Libraries that need to be installedadafruit_ble
adafruit_ble_midi.mpy
adafruit...
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In our work, we often use the unit "dB". For example, insertion loss, return loss, power, we often use xx dB, or xx dBm to describe. Of course, for colleagues, it is easy to understand what you mean, ...
Introduction to Switching Power Supply Circuit Design : https://training.eeworld.com.cn/course/5424Hardware Trio Switching Power Supply Circuit Design Getting Started Video Tutorial...
An aquarium automation system using the Feather nRF52840 and four additional FeatherWings. There is an automatic fish feeder and a Raspbery Pi based Fishpi display for monitoring temperature and light...
The customer's product is: MP3 repeater motherboard
Glue application area: The MP3 repeater mainboard has two BGA chips and some resistors and capacitors that need glue application
...[Details]
1. Configure the memory controller registers When our S3C2440 accesses SDRAM, it first sends out an address, and then the memory controller first sends out a chip select signal nGCS6 according to the...[Details]
introduction Wireless power transfer is gaining popularity in general-purpose products such as cell phone chargers. Most wireless power solutions focus on tightly coupled inductive coil solutions o...[Details]
This article mainly discusses with you the choice of BAM and stop mode . First, let’s take a look at what BAM mode and stop mode are. BAM mode BAM mode enables data to be transmitted using communic...[Details]
Getting to the bottom of blockchain
Since last year, blockchain has become the hottest word in both the financial and non-financial circles. Some people use it as a gimmick to engage in va...[Details]
There are three main preparations for learning microcontrollers:
● The first is confidence and perseverance. To learn MCU, you have to believe in yourself. It is like a layer of window paper. It ...[Details]
As the only Korean battery manufacturer that has not set up a battery production plant in the United States, Samsung SDI is planning to join hands with Stellantis, the world's fourth largest automobi...[Details]
When I first started learning 89C51 microcontrollers, I used keil4 as the development environment, and later upgraded to keil5. Now I am preparing to learn STM32, and the STM32 development environmen...[Details]
When a multimeter measures AC voltage, it uses AC coupling. When measuring AC voltage, the digital multimeter uses AC coupling, which means that the DC component is isolated and not included in the...[Details]
1 Introduction
A phase-locked loop (PLL) is a closed-loop automatic control system that can track the phase of an input signal. It has been widely used in various fields of radio technology. In...[Details]
Translated from 5gradar Friedrich Trawoger, Head of Managed Services at Nokia, explains why remote operations support is a lifeline for critical communications providers in the wake of the coronavi...[Details]
introduction
Group delay is an important indicator for describing the phase-frequency characteristics of a transmission system. Its measurement methods can be roughly divided into tw...[Details]
The three major A-share indices closed down today, with the Shanghai Composite Index falling 1.12% to 3371.96 points; the Shenzhen Component Index fell 1.84% to 13716.53 points; and the ChiNext Index...[Details]
Samsung Electronics has long maintained its leading position in the global smartphone OLED market, but market research firm Omdia pointed out that South Korea's market leadership is facing challenges...[Details]
As the basis of power batteries, new energy vehicle cells determine the performance of the entire battery system, whether in terms of structural form such as cylindrical, square shell, soft pack, o...[Details]
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