RS-232DALI桥接口

The Digitally Addressable Lighting Interface (DALI) has
emerged as a standard in Europe to address growing
power issues. DALI is known as Annex E of the Euro-
pean electronic ballast standard EN60929 and specifi-
cally relates to digitally controlled dimmable ballasts.
DALI type ballasts can run at lower power levels than
standard magnetic ballasts. With the rise of digitally
controlled ballasts, the need for devices that ‘talk’ to
them has increased as well. This application note
describes a very simple interface between the RS-232
serial port (available on almost all computers) and
DALI, where the PIC16F628 is the core of the interface.
The methods and circuits introduced here can be
expanded upon to develop more enhanced DALI mas-
ter control systems.
AN811
The RS-232/DALI Bridge Interface
FIGURE 2: RS-232/DALI BRIDGE BLOCK
Author: Ross Fosler DIAGRAM
Microchip Technology Inc.
RS-232 from
DALI Bridge DALI
INTRODUCTION computer

The Digitally Addressable Lighting Interface (DALI) has
emerged as a standard in Europe to address growing
power issues. DALI is known as Annex E of the Eur