It was easier than i thaught! It is cheapest and completed solution.
Only three things you will need to make the tally light!
- D1 mini with 4mb flash
- resistors upto 0.25W 3kOhm x3 pcs. (it was choosed experementally)
- Videolight Ulanzi vl49
and multimeter, some wires and some soldering stuff.
The whole main code written BY Aron het Lam, you can get from his Github: https://github.com/AronHetLam/ATEM_tally_light_with_ESP8266/wiki/DIY-guide
There are all instruction how to flash D1 module. But in this videolight you have to change out pins in his code next way:
First upload the code to D1.
Next the soldering.
You should remove the magnet from videolight, unsolder power ground wire from pcb in videolight to make all circuits safe for soldering.
Solder resistors to D1 as showed on picture.
Put D1 mini to main videolight pcb, make their sides and corner to fit to each other.
Precisely solder resistors and power wires to exact points on videolight pcb.
Solder back the ground power wire.
At this point the light is ready yo run. All that you neen is to turn the videolight brightness to the zero, and it became fully functional tally light.
Set it up as described Aron and mount it on a camera shoe holder.
Voila!!
