Sonoff Temperature Sensor SNZB-02 AAA case remix
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Modification for Sonoff Temperature Sensor SNZB-02 that will allow use of 2xAAA batteries instead of a CR2450 battery.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Modification for Sonoff Temperature Sensor SNZB-02 that will allow use of 2xAAA batteries instead of a CR2450 battery.
Why do you need such modification:
- longer lifespan for battery compared to coin battery in terms of capacity
- AAA batteries allow for wider temperature range (especially below 0*C)
- cheaper and more popular batteries
I could not find the battery holders the original model was designed around.
I found these on Amazon, and they fit IF I made the interior mounting posts shorter.
https://www.amazon.com/Battery-Plastic-Applicable-Electronic-Appliance/dp/B07ZKSJ9FT
or
https://www.amazon.com/JWISLAND-Battery-Holder-x1-5V-Leads/dp/B0D1DPLZ77
I used supports when printing the button.
I experimented with printing the case top scaled to 100.2%, 100.4% and 100.5% so it would fit tighter.
I have included photos of the modification to the original Sonoff unit.
I just published a wall mount to fit this case:
https://www.printables.com/model/1084344-wall-mount-for-remixed-sonoff-snzb-02-temperature