Comparison: Fixed / Learning / Rolling Code RF Remote Control

do you know three universal encoding types in wireless remote control field basically, Fixed Code RF Remote Control, Learning Code RF Remote Control,and Rolling Code RF Remote Control, encoding type is determined by the encoder IC the wireless remote control is using. The detailed comparisons between three encoding types are listed as follows. from vipprogrammer.com

Fixed Code VS Learning Code VS Rolling Code Comparison

Type	Typical IC	Encoding Method	Security	Price
Fixed Code	PT2262	Manual Encoding, using dip switch or soldering to set address code	Low	Low
Learning Code	EV1527	Automatic Encoding, copying fixed code or learning code remote	Medium	Medium
Rolling Code	HCS301	Automatic Encoding, using algorithm to generate different code every time	High	High

Learning code wireless remote control using EV1527 chip, and it is also known as self-learning RF remote control, which can copy fixed code or learning code remote controls face to face.

Rolling code remote control is usually duplicated using remote control duplicator, the number of rolling code remote control which can be duplicated is also limited.



Remote controls send signals in code. When the sending code is the same as the code which is expected by the receiver, then the receiver will actuate the relay, unlock the door, or open the barrier. Remote controls with a fixed code always send the same fixed code. Remote controls with a rolling code (or hopping code) always send out a different code from the one previously sent.