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Hardware Twakie Smart Plug

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AshG edited this page Jan 26, 2020 · 2 revisions

I came across this smart plug on amazon UK. They support power monitoring and has 2 USB port with 2.1 Amps each (total 4.2 amps). I bought a couple to test them and they seem to be rebadged sonoff s31 plugs but include Dual USB ports. They use Chipsea CSE7759B chip for power monitoring though , See pictures.

Stock firmware on these devices is 1.1.0 and Firmware ID - PSF-B67-GL.

I tried to flash them using SONota method but failed, I have now managed to flash them now using UART ( I used Raspberry Pi 1 ) with prebuilt Sonoff s31 image from espurna ( espurna-1.14.1-itead-sonoff-s31.bin ) and they seem to be working fine.

The only thing I have noticed is that firmware reports the power monitoring chip as CSE7766 but the actual chip is CSE7759B. However, power monitoring reading seems to be accurate as I compared with the flashed and non-flashed plug on the same circuit.

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