EDRF2

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Revision as of 16:29, 8 June 2021 by Chao (talk | contribs) (→‎EDRF2 Pin Definition)
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Notice

  • When signal received, on board LED blink. BUT if not pair them, data pin will NOT trigger
  • Available frequency version 315 / 433 / 390 / 418 MHZ, MOQ 50pcs for not listed version
  • Sensitivity -110dBm, power consumption 2mA
  • DO NOT forget to solder the antenna.

EDRF2 Pin Definition

  • D3~D0 default low, trigger to HIGH
Pin Definition Function Extra
GND GND -
VDD Power Supply 3.3-5V -
D3 data pin 3 match to transmitter button D
D2 data pin 2 match to transmitter button C
D1 data pin 1 match to transmitter button B
D0 data pin 0 match to transmitter button A
VT wireless signal indicator -
SW external learning button -
LED external LED -
GND Example -
ANT Example -

Mode

T1 T2 Header text
Float Float jog mode continiously triggering, stop when no signal
Float GND self-locking mode output flip
GND Float interlock mode Active one singal and close others, VT active when signal present

Paring

If transmitter has four buttons, it will match to EDRF2 Receiver:

  • D0 -> Button A
  • D1 -> Button B
  • D2 -> Button C
  • D3 -> Button D

Use with ESP8266

  • EDRF2 D0 pin connects to ESP8266 IO0 pin, EDRF2 D0 remains high TTL level by default.
  • Pair EDRF2 with your transmitter
  • Press button A to trigger ESP8266 IO0 pin to low
  • Software can detect the triggering timing of IO0 pin, or flip low or high level of IO0 pin.