74HC195 ( 4-bit parallel access shift register) tachometer The sequence of the applied

The sequence of the applied pulses is directly related to the direction of motor shafts rotation

Chip L298N

The MQ-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm

Gear tooth rotation speed detection

contacts and as a touch sensor

74HC195 ( 4-bit parallel access shift register) tachometer The sequence of the applied74HC195 is High Speed CMOS Logic,It is useful in a wide variety of shifting, counting and storage applications. It performs serial, parallel, serial to parallel, or parallel to serial data transfers at very high speeds. Specification Propagation Delay Time: 175 ns at 2V 30 ns at 6V Output Current: 5. 2 mA at 6 V No. of Inputs: No. of Pins: 16 Operating Temperature Range: 55 C to 125 C Supply Voltage Range: 2V to 6V Package: DIP 16 Sympol Pin