In order to observe the test results conveniently, I am used to using LCD to display. The code was transplanted from other development boards tested before. According to convention, as long as the pin
https://detail.tmall.com/item.htm?spm=a1z10.5-b.w4011-18883888937.65.c8162af80RiU46id=576897750536rn=2113700bcd9e6682e833730a455c6a29abbucket=19skuId=3880525425703This one is 80% new. I replaced the o
When the indoor CO2 concentration exceeds 1000 ppm , the human body will experience symptoms such as drowsiness, shortness of breath, lack of concentration , etc. If the concentration gradually increa
In this picture, what are the changes in the collector voltages of the two transistors? What are the functions of the operational amplifier at the front end and VR10?
This is the formula in the picture above. What I don't understand is how the VL drawn with a red line is merged into the formula below. Could you please teach me?