Sonoff PSF-B01 - User Manual

PSF-B01 Application Guide
1.Product Introduction
PSF-B01 is a single-channel ultra-low-power Wi-Fi switch module based on ESP8285.
It’s specially designed for mobile devices and Internet of Things applications with the
most competitive package size and ultra-low energy consumption technology in the
industry. Connecting users’ devices to the Wi-Fi wireless network for remote or local area
network communication to achieve networking. This module can be used as a switch
control for a single household appliance. Either it can be controlled by the device button,
or remotely controlled by connecting to APP (eWeLink).
PSF-B01 has various packaging methods, and the antenna supports ceramic
antennas. It can be widely used in smart grid, smart transportation, smart home,
handheld devices, industrial control and other fields.
Product Features:
• Built-in 32bit MCU, and can double as an application processor
• Support wireless 802.11 b/g/n standard
• Wi-Fi @2.4 GHz, support WPA/WPA2 security mode
• +20.5dBm maximum outputpower in 802.11b mode
• Support devicebutton control
• Support timer schedule
• Support Wi-Fi remote control
• Support compatible pairing mode /quickpairing mode
• Support OTA upgrade
2.Electrical Characteristics
2.1 Rated parameters
Conditions: VDD=3.3V±10% , GND=0V; test at room temperature 25°C.
Type
Parameters
Model
PSF-B01
Main chip
ESP8285
Hardware interface
UART, GPIO
Operating Voltage
2.7V~3.6V

Sonoff PSF-B01 Specifications

General

Model	PSF-B01
Type	Smart Switch
Voltage	100-240V AC
Max Load	10A
Max Load Power	2200W
App Compatibility	eWeLink
Operating Humidity	5% to 90% RH
Wireless Connectivity	Wi-Fi
Protocol	IEEE 802.11 b/g/n
Input	50/60Hz
Wi-Fi	IEEE 802.11 b/g/n 2.4GHz
Operating Temperature	-10°C to 40°C

Summary

Product Introduction

Electrical Characteristics

Rated parameters

Specifies rated electrical parameters including voltage, ground, and test conditions.

Wi-Fi parameters

Details Wi-Fi specific parameters such as wireless standard, frequency range, and encryption.

Module Type and Pin Definition

Module type

Provides a top view diagram of the PSF-B01 module.

Sequence of pin arrangement

Describes the pin arrangement and interfaces like Wi-Fi status, UART.

Pin definition

Defines the function and features of each pin on the PSF-B01 module.

Function Description

Module function

Explains the module's use as a single-channel switch and its control methods.

Wi-Fi status indicator light description

Details the meaning of different Wi-Fi status light flashing modes.

Wi-Fi module basic workflow

Outlines the basic workflow for Wi-Fi module configuration and connection.

Module upgrade process

Describes the process for connecting to the upgrade server for firmware updates.

Timer function overview

Details the four types of timer functions configurable via the APP.

Timer function details

Provides descriptions for single, countdown, repeat, and loop timer modes.

Wi-Fi Radio Frequency Index

Receiving sensitivity

Lists the receiving sensitivity values for different Wi-Fi standards and data rates.

Adjacent frequency suppression

Details suppression values for adjacent frequencies across various OFDM and HT modes.

PCB Design

Packaging Information