The most important parts of my alarm are the sensor and the execution part, in addition to the CPU. I chose the MQ-5 sensor. I chose the MQ-5 sensor. I. Overview. The QM-N5 gas sensor is an N-type sem...
The design of the stm32 chip is really disgusting. Here are two simple examples: 1. The USB and CAN interrupts of the STM32F103 chip are shared with the RAM, which makes it impossible to use USB and C...
[i=s]This post was last edited by maoshen on 2014-6-22 13:07[/i] Okay, I come in and vomit,,,,,,I know several friends who drive excavators, loaders, bulldozers, and truck cranes,,,,,,,their income is...
[size=15px]I would like to ask experts to help me find out what kind of tube is used for Q1 in this RF variable attenuator. How small is the model! ! ! ! ! It turns out that this 3-pin tube is used ab...