I'm making an electronic keyboard recently, using a 51 chip, but I can't tune the corresponding tone. Please help me, is there a problem with the circuit or the program? My idea is to generate a squar...
The microcontroller is PIC16F688. I use the interrupt function void interrupt isr (vvoid) {...} and it stops in the interrupt after running, but does not enter the above interrupt function. Is the for...
Author: Liang Hongbing Published: 2006.07.18 15:10:01 Source: CCID Network - China Electronics News 1[ Post a comment ] [Font size: Large, Medium , Small] [ Print ] [ Enter the blog ] [ Enter the foru...
[i=s] This post was last edited by 静得观看 on 2017-12-15 20:42 [/i]LTC is a DC-DC chip that inputs a positive voltage and outputs a corresponding negative voltage. When it is used, can the circuit connec...
I want to design an amplifier with a bandwidth of DC-100MHz, a total gain of 50 times, and three stages of amplification. The unit gain bandwidth of the operational amplifier is 1GHz. How can I estima...
As a natural human-machine interface, voice can make the in-vehicle navigation system safer and more user-friendly. Through the functional comparison of domestic and foreign in-vehicle navigation s...[Details]
Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology that uses wireless radio frequency communication. Compared with the currently widely used barco...[Details]
As the application scope of medical equipment expands from hospitals to emergency response and home medical environments, its mobility will be determined by many factors. In addition, medical equip...[Details]
The small size and low cost of home appliance control boards mean that high-cost materials will not be used in the circuit to solve the electromagnetic interference problem. The interference of hom...[Details]
Broadband services supporting triple play voice, video and data are evolving for first mile customers (small businesses and homes). A key factor in this FTTx evolution is GPON (Gigabit Passive Opti...[Details]
Multiple Input and Multiple Output (MIMO) technology is arguably the next most important development in wireless communications since the advent of digital communications. Many new wireless commun...[Details]
Volkswagen's electronic throttle has taken our understanding of the traditional throttle a big step forward. However, while we admire Volkswagen's new technology, which is constantly being applied...[Details]
This article will discuss a common problem in wireless mobile data reception.
Problems facing RF receivers
The common problem faced by RF receivers is that the same hardware must be used ...[Details]
AD604 is a product of Analog Devices (AD). Compared with similar products, AD604 has the characteristics of ultra-low noise, high precision, continuously adjustable gain, and the decibel (dB...[Details]
Although the human eye is very good at distinguishing colors, different people can describe the same color differently, which means that verbal descriptions are not enough in applications that requ...[Details]
This paper introduces the technology and application of optical transceiver modules and digital non-volatile variable resistors in optical communication networks, and focuses on the design and appl...[Details]
1. Introduction
Most of the existing heaters use traditional devices such as electric heating tubes and electric heating wires for heating. The outer shell of the electric heating tube is a ...[Details]
System engineers are under pressure to reduce costs and improve board reliability. An often overlooked response is to reduce the number of components used to monitor power supplies for FPGAs, micro...[Details]
Prisons are an important part of the national judicial organs, shouldering the important mission of enforcing laws and disciplines and educating and reforming. The safety of prisons is related to t...[Details]
In view of the fact that a single ordinary type of fire detection alarm can no longer meet the demand, the use of multiple sensors to comprehensively collect various abnormal information before a f...[Details]