AVT5361 B

The 21st century is the age of microcontrollers! It is a bold thesis, but it is difficult to deny it, because microcontrollers are found almost everywhere today. From simple household appliances to complex systems used in the army, medicine and science. Thanks
it increases the functionality of devices, and at the same time the price decreases. Well, the world is changing and what was once available to the few, today it is almost universal. Considering the constant drop in microcontrollers prices and the accompanying growth
their purposeful possibilities seem to be used even in devices that could be built without their participation. Increased functionality is gained in this way. An example of this type of applications is the 4-channel dimmer of network lighting described in this article, which thanks to equipping it with a popular microcontroller gained additional functionality and ergonomics of operation.

Recommendations: the dimmer will be useful in every home, whether it is to improve the comfort of living or to arrange the interior.

Basic information:

• 230Vac power supply
• power taken from the network: 2W
• number of regulation channels: 4
• maximum current (per channel): 12A (dependent on the triac and the cooling method)
• number of RC5 commands supported: 10
• number of adjustment steps 100
• settings of the most important FUSEBITs:
  • CKSEL3..0: 1111
  • SUT1..0: 11
  • EESAVE: 0
• in the set a printed circuit board, a set of elements and documentation

A detailed description in EP09 / 12 or

Attention! A complete power supply unit, including a transformer supplied with 230 V AC mains voltage, is mounted on the device board and components that are at the potential of that voltage are mounted. There is a risk of electric shock by 230VAC, which may pose a threat to the life and health of users. Therefore, installation of the system in this area should be entrusted to a person with electrical qualifications in the use of devices with a voltage of up to 1 kV, as well as the necessary knowledge and experience.