difference: Fixed / Learning / Rolling Code RF Remote Control
do you know three universal encoding types in wireless remote control field basically, here, vipprogrammer will list all kinds: Fixed Code RF Remote Control, Learning Code RF Remote Control, 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. 
| 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 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.
