Logo
Oittm 120 Power Monitoring Wall Outlet
US
Model reference: WS01
Oittm 120

Available from:
Amazon.com






Flashed with:
Tuya-Convert

GPIO #Component
GPIO00 Button1
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 None
GPIO05 HLWBL SEL
GPIO09 None
GPIO10 None
GPIO12 Relay1
GPIO13 HLWBL CF1
GPIO14 HLW8012 CF
GPIO15 Led1
GPIO16 None
FLAG None

Template

{"NAME":"Oittm WS01","GPIO":[17,0,0,0,0,130,0,0,21,132,133,52,0],"FLAG":0,"BASE":18}

Tuya-Convert might not be possible for this device if the manufacturer started using newest Tuya firmware since this template was published (2020-10-06).

For more accurate energy consumption measurements this device requires power monitoring calibration.

The text on the back reads:

Type 120 Wi-Fi Smart Socket
Model: Oittm WS01
Rated Current: 15A-20A(Max)
Rated Voltage: AC110-125V/50-60Hz
Rated Power: 2000W
Wireless Frequency: 2.4GHz
Wireless Standard: IEEE802.11 b/g/n

There is a blue LED that is independently controlled, a red LED that goes on and off with the relay, the relay/switch controlling power to the outlet, a momentary button, and an HLW8012 IC that can retrieve RMS voltage, current, power (watts), power factor, and more. The IC was determined by opening the device and inspecting the PCB. The PCB also had ““KS606 WIFI 2017/3/21”” or ““KS606 power 2017-3-22 Ver 1.1”” silkscreened on it in a few places.

Through manual template creation, I found that this ESP has an identical pinout and behavior to the Sonoff POW V1. I found this relation via the shared usage of the HLW8012 power monitoring IC

Pictures

front back front pcb back pcb wiring pads side pcb power monitoring IC ESP