NFC version of snowflake lamp-modified from mondraker's project

Adapted from the work of mondraker, the touch-sensitive stepless dimming snowflake lamp (ceramic filament) (even a novice can make it): https://oshwhub.com/mondraker/snow_light
There is a closed six-pointed star-shaped ring on the PCB. When I saw it, I felt that it seemed that an NFC coil could be added
. It may be a bit strange for a night light to have built-in NFC, but if you change your thinking, the NFC pendant can be used as a night light. Isn’t it cool? (Confusion
So after some magic changes, it became like this:
front
 
and back, you can see the coil added on it. At that time, I felt that this part was deliberately left for NFC by the author, hhh
 
lighting effect, the lighting effect after adding the coil texture is unexpectedly different.
 
NFC recognition, circuit and touch dimming parts are completely independent and do not affect each other. They can be used as NFC pendants.
 
The welding of the dimming lamp part can refer to the original work. There are also many projects related to the NFC part, which can be used as a reference. I will not go into details here (I will not tell you that I dragged this project for several months before open source, and I have forgotten all the details... Even the PCB is visible to the naked eye. There is a little dust...) It should be noted
that due to the limitation of the circuit board space, the number of turns of the NFC coil is relatively small, and the driving ability is insufficient. It is recommended to use blue or green with a higher voltage drop to reduce the current burden of the NFC circuit (if red, yellow or other low-voltage drops are used, the chip voltage may be lowered, and only the light will be on without recognizing NFC. Replacing the resistor with a larger one may have an effect, but the LED brightness will be reduced)