I wrote an Android app and used the following Android code to send a character. I want to know which callback of Bluenrg will be called after sending the character?
BluetoothGattService gattService =
...
As shown in the figure below, NMOS and PMOS are used as a protection circuit to prevent reverse connection of the power supply. [1] The circuit diagram of the PMOS tube is easy to understand. For the ...
The DAC12 module of MSP430 can convert the result of operation processing into analog quantity to operate the working process of the controlled object. DA is one of the commonly used devices in the co...
Xia Xian; Bachelor degree, 35 years old, graduated in mechanical and electrical engineering, more than 8 years of experience in CNC machine tool development and design, proficient in solidworks drawin...
[i=s]This post was last edited by Aguilera on 2019-1-8 17:26[/i] [align=left][font=sans-serif][size=4]When making a PATA interface hard disk controller, CRC check is required when using UDMA transmiss...
Due to various interferences, MSP430 will always fluctuate when performing ADC conversion. In order to improve the reliability of data, software filtering can be performed, among which the mean filter...
Chapter 3 Keil C51 vs Standard C
One of the keys to learning C51 is to deeply understand and apply the extensions of C51 to the standard ANSI C. This is because most of the extensions are directly ta...[Details]
Before 2011, a term called "Internet of Vehicles" began to appear in Baidu's popular searches; after 2011, many products with the meaning of "Internet of Vehicles" instantly covered the commercial ...[Details]
On May 10, e-cigarette retail mini-programs including RELX Mall, FLOW, and YOOZ Store have all suspended services. According to the mini-program page, the suspension of services of the above mini-pro...[Details]
Snapdragon 8 will power the next generation of premium Android smartphones, with commercial devices expected to be available by the end of 2021
Highlights:
...[Details]
This program covers three areas of knowledge:
1. 4*4 key part - complete the input of (0~9) number keys, function keys, and letter keys; the key will only work after it is lifted;
2. LCD12232 d...[Details]
Retrace your steps and set sail with your dreams. On July 14, the "China FAW Innovation Achievements Report Exhibition" was held in Changchun. In addition to the main venue, three sub-venues, "China ...[Details]
1. Introduction to vehicle speed performance
It is a key component of electronic control. Its performance is directly related to engine idle speed and transmission control. Therefore, its vari...[Details]
On June 8, Unigroup Guoxin released a convertible bond issuance announcement, planning to issue convertible bonds of 1.5 billion yuan, of which 600 million yuan will be used for the research and deve...[Details]
Analog IC designers (especially DC/DC regulator IC designers) seem to not appreciate the hard work of digital IC designers as these magicians who tinker with digital "ones" and "zeros" discard old ...[Details]
Key Points
Automotive network protocols include Local Interconnect Network (LIN), Controller Area Network (CAN), Media Oriented Systems Transport (MOST), and FlexRay.
Automotive Eth...[Details]
In a switching power supply, the voltage and current waveforms are both in a sudden pulse state. The voltage or current that the components are subjected to is not only the supply voltage applied t...[Details]
On October 29, Lizhen Technology's intelligent terminal project started construction in Kunshan. According to the news released by Kunshan, the total investment of the project exceeds 11 billion yu...[Details]
introduction
With the rapid development of electronic technology, the emergence of single-chip microcomputer technology has brought a new technological revolution to the field of modern indu...[Details]
On the afternoon of March 3, realme launched a new Bluetooth headset, realme Buds Q2s. Realme Buds Q2s combines good looks, long battery life, Dolby Atmos, and AI call noise reduction. It is p...[Details]
According to foreign media reports, electric car manufacturer Fisker has designated ChargePoint as its partner for public charging solutions for electric vehicles in North America. Through the coopera...[Details]
ST - Low Power RF
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