The red green laser pointer production requires relative mature technology

The same way as the previous step will stabilize at 12 transmitter location, press enter record data. 15 the same way as the previous step will stabilize at 3:00 transmitter location, and press Enter. 16 processors will be displayed at this time horizontal and vertical direction of the deviation, but only at the bottom of the display is black foot deviation will change with the adjustment. The middle of the clock point to indicate the current location of the transmitter. 17 spin coupling of the transmitter stable at 12 o'clock position, press the processor on the "5" key, the display above the observed data, the data for the motor to the level of deviation value, release the bolt to adjust.Some   green laser pointer     have been equipped with card readers. Coincided with a high degree of motor gasket should be reduced accordingly, should be increased accordingly high negative electrical pads. 18 After completion of the level of adjustment, turn the transmitter to the 3 o'clock position, press the processor on the "5" key, the display above the observed data, the data about deviation values for the motor side, adjust the motor adjustment bolts or knock around hit moving motor, observe the transmitter is misplaced because the motor movement. Should show a positive move from left to right motor, a negative the opposite. When the value in the range of ± 0.1 mm when the opinion of the qualified.

Laser harp design using eight laser beams emitted as strings, using easy to find the boxes do Qinjia, battery and switch control of the whole system off.    green laser pointer       has been widely applied in daily work and education.The use of single-chip broadcast control when moving the laser strings emit different tones of voice. When the laser irradiation, the microcontroller reads the voltage of the photoresistor, when it is low. When no laser irradiation, the microcontroller reads the voltage of the photoresistor, then when it is high. Thus, when blocking the laser light, can be generated in the circuit switching effect. The human ear can hear sound frequencies of 20Hz to 20kHz, harp notes should be in this frequency range. But, different notes, has its own fixed frequency. Comes through the 51 single-chip 16-bit timer can generate the audio. For example, the standard pronunciation la harp is 440Hz. By calculation we can see, it's half-cycle 1136μs. Thus, as long as the half-cycle transition pin, you can generate a 440Hz square wave. It is easy to produce red  usa green laser pointer  for it costs less than green one.Then after electro-acoustic conversion element (speaker), you can generate standard pronunciation la, and other notes are also produced. Keywords: laser tube; microcontroller; photosensitive resistance; timer. Keywords: laser tube; microcontroller; photosensitive resistance; timer. First, the design: The laser as a virtual strings, hand strings will be issued when appropriated for the appropriate tone, so as to achieve a simple imitation of harp music playing purposes. The overall design is mainly reflected in two aspects of the structure and function. 1, structural requirements: (1) The system is composed of eight laser transmitter, eight light-sensitive resistors and 51 microcontroller port p2 form part of induction and a speaker with eight-color LED lights form part of the response of three parts ; (2) single-chip serial port for data transmission.The red  green laser pointer  production requires relative mature technology. 2, the functional requirements: (1) blocked eight hands in a laser, the corresponding LED will automatically light, horn sounded in the corresponding one of eight syllables. (2) continuous block of different laser tube can play simple music. 3, the overall design: 3.1 system components and the working principle: The whole system is divided into the laser harp launch, sensing and response in three parts.