rt. The question requires the amplifier to be powered by a +12V single power supply. The commonly used VCA821 cannot be used. What chip should be used? Please analyze it. By the way, I will give you t...
[i=s]This post was last edited by jorya_txj on 2016-7-21 09:58[/i] It has been one and a half months since the release of raw-os 2.04. Those who follow the raw-os git repository have already found tha...
A communication system that uses infrared to transmit voice is to be effective within a range of 20 meters. It uses multiple infrared transmitting tubes in order to be able to communicate within a ran...
[i=s]This post was last edited by paulhyde on 2014-9-15 04:14[/i] [font=宋体][size=12pt] Design a CNC DC power supply with a certain output voltage range and function. The output voltage range is requir...
#include__CONFIG(0X1832); // 877A, the hardware has been debugged #define keyO3 RB5 //Connect the pull-up for keyboard input #define keyO4 RB4 // #define keyI2 RB2 //For output, it forms 4 buttons wit...