I am a novice in PCB. I am now making a four-layer board. I use the Add Layer and positive copper plating. Here are some questions I have about the indentation of the power layer. I hope experts can a...
Handmade, sometimes the motor does not rotate, sometimes the motor can only rotate forward but not reverse. The PWM signal is fine, it seems that the DIR signal, which is the signal on pin 2 of 2104, ...
Can ADC0809 convert the analog value of pH sensor and temperature sensor into digital value? Can I use microcontroller, ADC0809 and sensor to design a circuit to control pH value and temperature in wa...
The calculation formula of the temperature sensor in the data sheet is as follows:Internal-temperature sensor for temperature measurement:T = [V_SENSOR(T) ? V_SENSOR(0°C)] / TC_SENSOR in °C.Should I u...
When compiling, EVC4 prompts that ras.h is not found? I searched the Include directory and found it is not there. I copied ras.h from VC6 to the Include directory and still prompted that it is not fou...