Product descriptionPS 2 keyboard driver module uses apiece of programed code of MCU as the controller， to read the state of PS2 keyboard keys.When the keyboard is pressed， the LED lights flashing on the PS2 keyboard driver module， at the sametime through serial communication and parallel I/Oporto rTW I/IIC(Through the short circuit cap option) ， Keys will be output.For example， Press"A"key， serialport output data 0x1c， parallel/oportoutput0x1cbyD 7-D 0.The output scancode can refer to the back of the content.Pop-up output.In addition， two sets of buttons， TTL output when there is no buttons to press the"O"， and have a button to press the output"1"， after the button pop-up restore"O"(each key on keyboard effectively.In addition to pause key.Serial， parallel， TWI/IIC can work at the sametime.If there is no connection from the machine on the IIC/TWl bus， please remove short-circuit cap module above.Otherwise， the module will not be able to work properly.

Pay attention1.TWI/IIC addressis 4.Modules forthehost.2.Do not use the TWI/IIC should be“IIC/TWI enable”Short circuit cap to remove.Otherwise the module will not be able to work properly3.*UART Baudrate ： 19200

Product parameter1.working voltage：DC5V；2.Key information is sent out by serial (Baudrate 19200) and parallel3.corresponding speed；4.apply to PCPS 2 keyboard.5.Module size：39.1mm(length) *31.2mm(width) *18mm(high)

Product FeatureConverts the PS 2 protocol to TWI/IIC， UART， parallel interfaceIncrease the key state detection.Wide range of applications.

Application：Robot， Electronic products， and soon

Application noteUse C51 SCM serialport mode circuit

Test code