Sonoff PSF-B01 User Manual

4
GPIO16
NC
5
GPIO14
NC
6
GPIO12
Relay switch: active high, power-on default low level. Note: As a
switch button, there will be a period of high level at the moment of
power-on, which requires a pull-down (1~4.7K) resistor to ground.
7
STATUS
Wi-Fi status indicator light, connect LED in series with current limiting
resistor to 3V3
8
GPIO15
Note: Chip configuration pin needs to pull down (1~4.7K) resistor to
ground
9
GPIO2
Used to program flash UART1_TX
10
GPIO0
1. Switch pin, active low 2. Distribution network module
11
GPIO4
NC
12
GND
GND
13
GPIO9
NC
14
GPIO10
NC
15
GPIO11
NC

Sonoff PSF-B01 Specifications

General

Brand	Sonoff
Model	PSF-B01
Category	Switch
Language	English