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TRV604 18650 adapter

The TRV604 wifi valves run natively on 3 AA cells, which in the case of NiMh rechargeable cells provide ca 7 Wh (3-4.5V). This energy allows the TRV604 to run between 1-6 months, depending on temperature changes, heat source temperature…

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HeltecV3 18650 case

This case with a sliding cover gives access to the Prog and Reset button and the USB-C socket on the HeltecV3 board. With the possibility to add a 18650 cell, the module can be run offline without external power supply for up to 40 hours,…

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Watchy USB-C no frills case

I am a smartwatch aficionado and could not resist this little gem available on Ali for a very reasonable price. Since none of the watchy cases I found are water tight anyway and the case I downloaded and printed did not fit, I decided to…

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Atomstack Swift 12W air pump adapter

This adapter was designed for the Atomstack Swift 12W laser engraver and fits directly in the head without modifications. It can be used with generic air pumps for laser engravers like e.g. the AENBUSLM Air Assist Pump For Laser Engraver…

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