HALJIA Photoelectric Encoder Tacho Generator Speed Sensor Coded Disc Code Wheel For Freescale Smart Car

• Number of lines: 100 lines. Outer diameter: 22mm. Hole diameter: 3.5mm.
• Thickness: 0.3mm. Material: alloy steel. Production process: laser cutting
• Supply voltage: 5V (3.3V is also available).
• Wiring: Red 5V black GND.Two signal lines, one yellow, one blue.
• Output signal: 5Vp-p two-phase signal output.

Feature: Number of lines: 100 lines. Outer diameter: 22mm. Hole diameter: 3.5mm. Thickness: 0.3mm. Material: alloy steel. Production process: laser cutting. Supply voltage: 5V (3.3V is also available). Wiring: Red 5V / Black GND. Output signal: 5Vp-p two-phase signal output. Two signal lines, one yellow, one blue. Yellow and blue are two TTL level signals (can be directly connected microcontroller) (Note: Measuring Reversible rely on these two levels to distinguish between forward or reverse). Packing List: 1*Photoelectric Encoder Tacho Generator Speed Sensor Test Code: #include "hidef.h" /* common defines and macros */ #include "MC9S12XS128.h" /* derivative information */ #pragma LINK_INFO DERIVATIVE "mc9s12xs128" int speed=0; void init_RTI(void) //1ms { RTICTL=0X87; CRGFLG_RTIF=1 CRGINT_RTIE=1; PACTL_PAMOD=0;//0 Event counter mode. PACTL_PEDGE=1;//1 Rising edges on IOC7 pin cause the count to be incremented. PACTL_PAEN=1;//1 Pulse Accumulator system enabled. } #pragma CODE_SEG __NEAR_SEG NON_BANKED interrupt void RTI(void) { CRGFLG_RTIF=1; speed=PACNT ; PACNT=0; } void main(void) { init_RTI(); /* put your own code here */ EnableInterrupts; for(;;) {} /* wait forever */ /* please make sure that you never leave this function */