Chao at 09:30, 13 August 2020

2020-08-13T09:30:52Z

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== RF Link with Decoder/Receiver ==
''' Pin definitions '''
ANT、GND、LED、SW、VT、D0、D1、D2、D3、VDD、GND
* ANT - antenna,
* LED - external singal status LED
* SW - external learning switch
* VT - same as LED
* D0-D3 - Data output
* VDD - Power posistive in
* GND - Power ground
''' working mode '''
* T2 T1 off - default point mode
* T2 connect T1 off - lock mode
* T2 off T1 connect - inter-lock mode
''' How to pair '''
* Learning and pairing:
# Hold learning button for 2 seconds and release,
# LED blink once, enter into pair mode
# on transmisster, press any button to pair
# receiver board receive signal, LED blink 4 times means succeed.
* Clean pair
# pair button hold more than 8 seconds, LED up, after 8 seconds LED off means succeed clean.

== RF Link with Encoder and Decoder PT2262/PT2272 ==
=== Pin Definition, Modes, Antenna, Encrption ===
{| class="wikitable sortable" align = "right"
|-
! Pins (From left to right on top side) !! Function
|-
| VT || Receive signal (optional)
|-
| D3 || Data output
|-
| D2 || Data output
|-
| D1 || Data output
|-
| D0 || Data output
|-
| 5V || 5V Power Supply
|-
| GND || GND
|}
* Data output of receiver will be the same of data send from remote controller, so in theory, when you push button 1, you will get 0001 from D0~03, and when you push button 2, you will get 0010 accordingly.
'''About Modes setup'''
* M4（push-down: hold for output, unhold to stop output）- this is default mode
* L4（interlock:only one of four of the output can work in the same time）
* T4（selflock: four output are independent, push once to output and push again to stop）
''' About Extra Antenna on Receiver ''' - If your require more far tranmission distance, it is better to use 1/4 wavelength antenna, 50 ohm single-core wire, the length of the antenna is about 23cm for 315M, and 17CM for 433M. Solder it on ANT pad.
''' About - Further Encryption '''
[[File:2262 & 2272 Wireless RF Link 03.JPG|400px]]
* This RF link works as fixed code encryption, not the high level security, but will good enough for many normal cases, like car garage door.
* A0~A7 pins are the address pins, on both transmitter and receiver should be matched for communication.
* These pins has three states: float, to VCC, to GND.

[[category: RF-Link]]

EDRF3 - Revision history

Chao at 09:30, 13 August 2020