I just opened a ball mouse , i saw 2 encoder wheels ( one for x direction and other for y direction movement ) an ir light was made to pass thru the encoder and ther was a reciever on the other end. The most baffling thing encountered was there was only one ir light and one reciever for each encoder ( as the reciever was 3 terminal , vcc,gnd and data) only a single bit data can be passed , then in that case how does the mouse sense the direction of motion of the the wheel ? when i gave one to the data line of the recivere the mouse moved from left to right and stationary at 0 ( similar for y axis when given 1 moved up but stationary when 0)
How does this ball mouse work rather how does it sense direction by visibly seeing that its giving only 1bit data !!!!
How does this ball mouse work rather how does it sense direction by visibly seeing that its giving only 1bit data !!!!