Sonoff SNZB-02 Thermometer enclosure
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Enclosure is for bigger battery for SNZB-02 thermometer. (Sonoff Zigbee...) It saves money on CR2450.
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This is a bottom box for SNZB thermometer made by Sonoff, that is nice IoT device used with Zigbee. Problem is that SNZB battery (CR2450) is costy and lifetime is short, so this enclosure incorporate the electronic and even bigger battery that could be
- CR123 fits (without holder) but with wires soldered
- Li-Ion 16340 fits but with wires soldered
- CR1/2AA - fits with battery holder from aliexpress
The top cover will be designed soon.
There are 4 holes for mounting to wall, wood etc.
The SNZB electronics is placed to circle, use the piece of 2-side tape. Then you unsolder two metal battery connectors and replace them by two wires to battery. (or to battery holder in case of CR1/2AA).
If you have aliexpress luck sometimes you find CR1/2AA or CR123 made in shrink tube and including wires ;-).
UPDATE: Added insert to hold SNZB electronics inside enclosure (for cases when you dont want use dual side tape, hot glue, etc.). Added photo with CR123 that is tight, I used sheets of metal as contacts to battery.
I have plans to extend this project. See you and follow :-)