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Fully working (it remember last state, temperature and color blending work).
It is easy to crack open the top, no tools required, just a raw power, silicone doesn't hold it very strong. LED board than can be pryed by small screwdriver.
RX1 and TX1 are accessible after removal of LED board, no need to desolder anything, or pull the boards out - i don't recommend that as pins at the base may not catch the wire properly (i had to make one of the solder), but i provided external 3.3V using my PSU set to 300mA as my USB-TTL can only handle 100mA I used the one on the picture.