Have a great god can tell me no. 8 pin out of the small triangle is what components?

CodePudding user response:

The first sentence, this is the DELPHI, BBS; , not PROTEL BBS;
Second HuaHua, 8 feet estimate is the adjustment of the adjustable resistance, can be adjusted through the resistance, also can adjust by photoelectric,
8 feet to raise, to ground resistance increases, (to prevent current flow to the ground), in contrast, 3.3 V voltage, the voltage is increased,
To cut over the ground resistance is reduced, 3.3 V on the other side of the resistance increases, voltage of 3.3 V is reduced.
,,,,,,, is mainly the 3.3 V input or output
If is 3.3 V input, 8 feet to move up, to ground resistance increases, the number 10 feet get voltage will increase, and in 10 feet get voltage decreases,

CodePudding user response:

AD analog-to-digital conversion, you can test the voltage value

CodePudding user response:

As a senior free electronic fan, I can responsibly tell you, that is the potentiometer ~ ~ ~
Potentiometer usually have three end connection and connection on both ends of the two kinds of usage, three termination method is used to control the current, the two ends method is used to control the voltage, namely rheostat, this is the connection on both ends, you can adjust the input voltage of pin8, its high pin10 is reference voltage (3.3 v), pin12 is low voltage reference (earth), so after conversion to pin8 input voltage is converted to a percentage value, between 0 and 100, for example, as to what to do with this value, see equipment use, it can control the volume, such as