AVT2681 B

The RC5 code transmitter, instead of a typical multi-button keyboard, is controlled in series (in I2C standard) or in parallel. A specific code is emitted when its six-bit code is given. The 'heart' of the system is the popular AT89C2051 microprocessor. It implements all functions related to sending a modulated infrared beam. The PCF8574 expander is responsible for the I2C bus. The remote control can work in two modes: with fixed or variable RC5 address. The entire module has a small size and can be soldered to a larger base plate.
Selected parameters of the module:

• work in the RC5 standard
• fixed or variable address mode
• control via I2C bus or parallel port
• programming the expander base address - jumper
• power supply - 5 V
• in the set a printed circuit board, a set of elements and documentation
  
  Detailed description in EdW 10/03