PFS Presa Smart Wall Outlet
PFS Presa Smart

Available from:


Install method:
Replace module

GPIO #Component
GPIO00 User
GPIO01 User
GPIO02 User
GPIO03 User
GPIO04 Led 1
GPIO05 Led 2
GPIO09 User
GPIO10 User
GPIO12 Relay 1
GPIO13 Button 1
GPIO14 None
GPIO15 User
GPIO16 User
GPIO17 User
This device uses WB2S module which needs to be replaced with ESP-02S, WT-01N or WT32C3-01N. Besides the module, this process will require a heat gun, soldering tools and moderate soldering skill.

Disassembly tips:

Be careful when you remove the glass plate as I broke the catches.

You should have to enlarge the ground screw hole, as the screw will not allow the pcb to come out.

The PFS smart plug comes with a Tuya WB2S chip, you can simply remove it and replace it with a TYWE2S (ESP8285) chip, as they are essentially identical.

  • GPIO4: Red Led
  • GPIO5: Blue Led
  • GPIO12: Relay
  • GPIO12: Button
  • GPIO14: I couldn’t figure out what it does