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Data transfer using laser torch test circuit using coded data

Laser torch schematic:

  Data transfer using laser torch test circuit circuit using coded data transmission 1

Data transfer using laser torch test (coded data transmission) circuit:

Data transfer using laser torch test circuit using coded data transmission) 2

circuit consists of encoders and laser torch VD5026 composition, in which A1 ~ A11 as address lines, the logic state can be 1,0 or suspended, the address lines of different combinations you can get different output pulse train D0 to modulation of the laser torch emission, the laser can be sent through thousands of different sets of encoded data.
Code receiving circuit:

Data transfer using laser torch test circuit using coded data transmission) 3

The reception by the optoelectronic devices, consisting of LM358 op amp amplification, shaping circuit, the received signal into the DI input of VD5028 decoding (VD5028 the A1 ~ A11 to be consistent with the state of VD5026), decoding correctly , VT-ended output in the low to trigger the implementation of the back of the control circuit audible.