| Price | $4 |
|---|---|
| Category | Relays |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
A bare-board Wi-Fi relay built around Sonoff's PSF-B01 module, the same ESP8266-family radio used in their retail switches. Power it with 5V over micro-USB or the +5V / GND screw terminal, pair it with the eWeLink app, and you get app control, timers and schedules for whatever you wire to the three-way NO / COM / NC output. Serial pads let you reflash it with Tasmota or ESPHome.
Key features
- Sonoff PSF-B01 Wi-Fi module (ESP8266 family, 2.4 GHz)
- 5V input via micro-USB or +5V / GND screw terminal
- Songle SRD-05VDC-SL-C relay, dry NO / COM / NC output
- Contacts printed 10 A at 250 V AC / 10 A at 30 V DC
- eWeLink app control with timers and schedules
- Serial header pads for flashing Tasmota or ESPHome
Details
Specifications
| Model | Sonoff PSF-B01 Wi-Fi relay board |
|---|---|
| Wireless | PSF-B01 module, 2.4 GHz Wi-Fi (ESP8266 family) |
| Supply | 5V DC (micro-USB or +5V / GND screw terminal) |
| Model (relay) | Songle SRD-05VDC-SL-C |
| Contact configuration | SPDT dry contact (NO / COM / NC) |
| Contact rating | 10 A at 250V AC / 10 A at 30V DC (as printed) |
| App | eWeLink |
| Firmware | Reflashable over the on-board serial pads |
| Controls | Two on-board push buttons |
