Sonoff Programming Adapter


SKU: SPROG Category:


Use this adapter to load your own firmware onto Sonoff devices from ITEAD.

The adapter provides a common 6-pin serial header on one side for connection of a USB-to-serial converter, and provides a 4-pin header on the other side in the correct format to match the programming header inside many Sonoff models.

Includes jumper in the power line to allow the Sonoff to be power-cycled without disconnecting.

Note: Does not convert voltage, so you must use a 3.3V USB-to-Serial converter.


  • 6-pin header matching FTDI cable pinout (versions with a socket and a pin header)
  • 4-pin header matching many Sonoff models
  • Jumper to allow power-cycling without disconnecting

Compatible Sonoff models include:

  • Sonoff Basic
  • Sonoff TH10 / TH16
  • Sonoff POW
  • Sonoff 4Ch Pro
  • Sonoff 4Ch Pro R2


Additional information

Weight 7 g
Dimensions 80 × 80 × 15 mm
FTDI Header Type

Pin Header, Socket


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