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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.