Let's investigate how many people have no serial port on their computers and want to make a full-function USB device, with a USB input, converting one TTL, one 485, one full-function 232, and one USB....
The NiMH battery is 3.6V, and the low voltage protection is usually around 3V. When it is fully charged and used normally, it is discharged. When the LED discharges below 3V, it is protected and shut ...
In the STM32 branch, the USB enable option has been added. The default is disabled (not added). #define MICROPY_HW_ENABLE_USB (1) If this option is not added, there will be no USB device after the upg...
2013 Korea Building Materials Exhibition Seoul Building Materials Exhibition 2012 Korea Building Materials Exhibition 2012 Seoul Building Materials Exhibition Korea Decoration Exhibition 2012 Korea De...
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
As microcontrollers become less expensive and more powerful, electrical designers are finding it more cost-effective to use multiple small controllers in both single-board and multi-board systems. ...[Details]
Fetal monitoring is an important means to ensure the safety of perinatal mothers and fetuses and achieve eugenics. Intelligent fetal monitoring is a monitoring method that analyzes the health stat...[Details]
Abstract:
Using TMS320F2812 DSP chip as the control unit, without any gate control device control, the rich software resources of DSP 2812 are used to achieve equal precision measurement. A...[Details]
The microwave multifunctional therapeutic device uses microwave radiation for heating treatment, which can achieve the effects of sterilization and blood circulation. Using microwaves to directly c...[Details]
l Introduction
Traditional human-computer communication is achieved through keyboard or mouse. The speed of information exchange is relatively slow, and the operator is required to have certain...[Details]
Anyone who has owned a laptop computer will have noticed that when running on battery power, their portable device behaves differently than when running on AC mains power—the display dims, the proc...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
Novaled, a German company, has successfully developed p-type and n-type field effect transistors based on a single-layer pentacene semiconductor layer by using its own p-type and n-type dopants. This ...[Details]
With the improvement of people's requirements for vehicle riding comfort and the development of passenger car suspension technology in my country, air suspension is increasingly used in passenger ...[Details]
With the continuous development of digital television, the demand for high-definition is imperative. H.264, as a new generation of compression standard, has a more complete algorithm than MPEG-2, ...[Details]
0 Introduction
The rapid development of wireless communication technology and video compression technology has made wireless video transmission a hot topic of research. Wireless video tran...[Details]
In the past one or two years, driven by Apple's iPhone, the smartphone market has expanded rapidly. An important feature of portable products such as smartphones is that they have more and more fun...[Details]
1 Introduction
The brushless DC motor uses an electronic commutation device to replace the mechanical commutation device of the traditional DC motor, and has similar mechanical character...[Details]
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