Summary of BUILD SMART HOME SOLUTIONS IN 10MINS USING ITEADS PSF-B SERIES 1-4 GANG ULTRA LOW POWER ESP8285 WI-FI SWITCH MODULE
The ITEAD PSF-B is an ESP8285-based ultra-low-power Wi‑Fi switch module (1–4 gang) for rapid development of home automation switches. It supports 802.11 b/g/n at 2.4 GHz with WPA/WPA2, offers device button and remote app control (eWeLink compatible), OTA upgrades, timer scheduling (single, countdown, repeat, loop), configurable power-on state, quick pairing, and up to +20.5 dBm output. It can switch four independent appliances and the ESP8285 serves as both Wi‑Fi radio and 32-bit MCU/application processor.
Parts used in the PSF-B Series 1-4 Gang Ultra Low Power ESP8285 Wi‑Fi Switch Module:
- ESP8285 32-bit MCU with integrated Wi‑Fi
- Relay channels (1 to 4 gangs depending on module version)
- Pushbutton for device control and pairing
- Power supply circuitry (for ultra-low-power operation)
- 2.4 GHz Wi‑Fi antenna or antenna connector
- Security support circuitry for WPA/WPA2
- Firmware supporting OTA upgrade
- Timer scheduling firmware (single, countdown, repeat, loop)
- IO pins (including IO0, IO12 as described)
There is absolutely no end to the number of different types of modules and devices in which the ESP family of WiFi modules/microcontrollers have been featured, thanks to their integrated nature and small form factor. While the ESP8266 and ESP32 variants are the most known, other less-known versions like the ESP8285 have recently been garnering popularity with several products based on it, including the recently released PSF-B 4-gang Wi-Fi Switch Module, by china-based home automation solution provider; ITEAD.
A 1-4 gang ultra-low-power Wi-Fi switch module, the ESP8285-based PSF-B Switch module was designed to enable rapid development of WiFi-based, home automation switch solutions. It comes with the ability to switch up to four independent household points/appliances and can be controlled via connected pushbuttons, or controlled remotely by connecting it to a privately developed, or publicly available app like ITEAD’s eWeLink.
Key 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 output power in 802.11b mode
- Support device button control and Wi-Fi remote control
- a)In the normal state: click the button (IO0 pulls down for more than 100ms) to control the relay on and off (IO12 output high/low level
- b)In the pairing mode: click the button to exit the pairing mode.
- Support timer schedule – including single, count down, repeat, and loop timer, see details in 4.5.
- Support compatible pairing mode /quick pairing mode
- Power-on status -The power-on switch status can be configured on or off through the APP, and the default power-on status is off.
- Support OTA upgrade
- What Wi‑Fi standards does the PSF-B module support?
It supports wireless 802.11 b/g/n at 2.4 GHz. - Can the PSF-B be controlled without Wi‑Fi?
Yes, it supports device button control using the onboard pushbutton. - Does the PSF-B support remote control via apps?
Yes, it can be controlled remotely by private apps or public apps like ITEAD's eWeLink. - Is over the air firmware upgrade supported?
Yes, the module supports OTA upgrade. - What timer functions are available on the PSF-B?
It supports timer schedule including single, countdown, repeat, and loop timers. - What is the default power-on state of the PSF-B?
The default power-on status is off, but it can be configured via the app to on or off. - How does the pushbutton behave in normal and pairing modes?
In normal mode clicking the button (IO0 pulled down >100ms) toggles the relay (IO12 toggles high/low); in pairing mode clicking exits pairing mode. - What security modes are supported by the PSF-B?
It supports WPA and WPA2 security modes. - What maximum transmit power does the module provide?
It provides up to +20.5 dBm maximum output power in 802.11b mode.
