HomeHome AutomationA hackable ESP8266 inside a smart plug

A hackable ESP8266 inside a smart plug

Want to play with ESP8266 without worrying about the hardware?

I had a chance to review an Oittm Smart WiFi Plug recently. I also tried to see if I can use Tasker with it, but Wireshark returned encrypted data. No success, for now… While I was trying to get the IP of the smart plug – I discovered a newly added and very familiar to me hostname: espressif. You know what this means: ESP8266 inside a smart plug.

A hackable ESP8266 inside a smart plug

Since I don’t know how to bypass the encryption and I don’t want to use Alexa hacks to get it working with Tasker or Raspberry Pi, the only solution is to look inside. After all, ESP8266 inside the smart plug is pretty much the same concept as my WiFi light switch.

Buy Oittm WiFI Smart Socket

Buy it using these links to support NotEnoughTech.

The review is up, no need to worry about the damage anymore, so let’s crack this baby open, shall we? Side note: there are no warranty seals, which makes the whole unit easily accessible. Just don’t do this when this thing is plugged into the mains.

ESP8266 inside a smart plug

Two screws later, the insides of the Oittm plug are available to me. Having a suspicion is one thing, but seeing the ESP8266 inside a smart plug another! I’m glad I was not mistaken.

ESP8266 inside a smart plug

I removed the PCB, to get a better look at the circuit. All important pins have been exposed for tinkering.  This is a pure gold! Big contact points nicely labeled for me! I have TX and RX responsible for data transfer, we have the power pins as well.

Exposed pads:

  • TX, RX – serial data transfer
  • GND, 3.3V, 5V – power for the relay and ESP8266
  • Relay – relay signal
  • GPIO00, GPIO02 – boot and reset pins
  • button – probably set as some GPIO interrupt


I’m not sure if I will be able to download the firmware ‘just in case’ from the ESP8266. It would be ideal to have the backup ready should I decided to go back to the ‘stock’. I will probably try to flash my custom MQTT enabled script so the ESP8266 inside a plug would become compatible with my custom software.

I successfully hacked the Oittm plug. I was able not only write my own code using Arduino IDE, but also use existing AFE Firmware with it. If you want to know more – here is the hack guide.

Conclusion

If you are interested in embedding a smart socket into your own DIY home automation system this could save you some troubles. After all, it’s easier to write a script than design a PCB and create an enclosure. I will keep you updated about my attempts to hack this thing.

PayPal

Nothing says "Thank you" better than keeping my coffee jar topped up!

Patreon

Support me on Patreon and get an early access to tutorial files and videos.

image/svg+xml

Bitcoin (BTC)

Use this QR to keep me caffeinated with BTC: 1FwFqqh71mUTENcRe9q4s9AWFgoc8BA9ZU

Smart Ideas with

Automate your space in with these ecosystems and integrate it with other automation services

client-image
client-image
client-image
client-image
client-image
client-image
client-image
client-image
client-image

Learn NodeRED

NodeRED for beginners: 1. Why do you need a NodeRED server?

0
To server or not to server? That's a very silly question!

Best Automation Projects

NEST your old thermostat under $5

0
Nest-ing up your older thermostat under $5

Nora – Google Assistant in NodeRED

0
Integrate Google Assistant with NodeRED thanks to Nora - NodeRED home automation

Sonoff R3 DIY mode & why it sucks

0
Long awaited Sonoff R3 DIY mode is even worse than I expected.

Things they don’t tell you about IKEA Trådfri

0
There are things you should know about IKEA Tradfri before you make your purchase

IKEA TRADFRI Wireless dimmer in NodeRED

0
Thanks to NodeRED you can use IKEA TRADFRI Wireless Dimmer to interact with everything

Smart Home

Best Arduino boards for home automation

0
Would you like to know what are the best Arduino boards for home automation? I pick 3 best boards from Arduino line up

Tuya SDK for beginners: Intro to Tuya Cloud API

0
Working with Tuya Cloud API. A guide to Cloud automation for beginners, get started with REST!

SwitchBot Sensors – there is more to these than you think!

0
SwitchBot Sensors are the latest devices from this ecosystem. Both: contact and motion sensor bring something new to the table

M5Stack Core Ink: the inkling for makers

0
I shall call it The Inkling - M5Stack Core Ink is a great ESP32 based development board for anyone interested in e-ink displays.

M5Stack UnitV2 is the easiest way learn to AI vision and Edge Computing

0
AI vision and Edge computing in a thumb sized device - M5Stack UnitV2 - it's easier than you think!