Tag Archives: slampher

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Hacking the Sonoff RF Bridge 433

Itead Studio has been releasing interesting gadgets for the Home Automation community based on a low price tag and extreme hackability. You can google “sonoff” (the main brand for Itead Studio home automation devices) to get more than a million hits, including official pages, reviews and lots of hacks. The ubiquitous ESP8266 (or its sibling ESP8285) is the core of all those devices, using WiFi instead of the traditional RF messages, replacing a remote with mobile apps or voice commands. But also, using custom firmwares like ESPurna, technologies and solutions like MQTT, Node-RED or Home Assistant. But one of the latests devices from the chinese firm tries to bridge the gap between those two technologies: the Sonoff RF Bridge 433.

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New firmware for the Slampher

Some weeks ago I received a parcel from Itead. Previously, I had written about the Sonoff and they were kind enough to send me two more of their home automation products for me to review: the S20 Smart Socket I wrote about two weeks ago and the Slampher.

Slampher box

The Slampher comes in a simple cardboard box with no documentation at all… just visit their wiki!

The Slampher is kind of a Sonoff RF that sits before any light bulb with an E27 screw. As you can see in the header pic of this post it adds quite some length to the group. It’s a bit bulky and might not fit in every lamp. Off course the board layout is different from the Sonoff and it uses a JST131U-800D 1A triac instead of a relay to switch the bulb. Aside from that they are equivalent.

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Sonoff TH 10A/16A

ITead’s Evolution

I was not the first to arrive at the party but since I discovered the ESP8266 I’ve been enjoying it. Then I stumbled upon the Sonoff and dude was I amazed. They are cheap and so very hackable you cannot help buying them, tear them open and customize them.

Sure they are not CE or UL compliant, yet. My previous post about adding a custom RF module to a Sonoff HT got some visibility as it was published at hackaday.com. Most of the commentors there  where concerned about safety measures in the device. The truth is that early Sonoffs looked more like products for the DIY market, not for end customers.

But ITead’s home automation product line is evolving quite fast. It all started with several Sonoff models (with or without RF, with or without temperature and humidity sensors, with or without AC/DC transformer) and the Slampher I’ll be reviewing it soon.

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