“Plastic covered photo cells + Supercapacitor with unlimited life
Features:
- 6x BPW34 photodiodes aka solar cell
(plastic diodes, more resistant to damage against glass solar cell)
- Up to 10F supercapacitor
(You can use bigger capacity but 10F is optimal for charge in one sunny day)
- 4 hours operation in night depends on intensity
- Auto night on
- Step up converter effective use all stored energy, discharge scap until 0.3V !!!!!!
- Output is activated in night
To Do:
- make smaller board to fit in acrylic sample bottle”