SCM and photoelectric sensor speed measurement procedure First of all, you I do not have the schematic diagram, according to my on my development board to write the schematic diagram. Schematic diagram on at my blog: http://hi.baidu.com/mcu 5Fspaces/album/item/8b0e987e63e7ed360cd7daf7.html digital control of the four are the infrared sensor when the Hall speed sensor. If these devices and single-chip connectivity and you are not the same, change the definition of their own on the line.

1602v8051.txt

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