Paco

Use two motors with separate solar engines; rely on differential sensors to achieve a goal. Poppers are essentially just pairs of solar engines mounted together with motors; they seek out bright sources of light through the differential action of the two solar engine motor pairs.

 

  • Lenght: 5.3 cm
  • Width: 5 cm
  • Height: 4 cm
  • Weight: 11 g



































Components

Qty Cost
1/2 Solarbotics SCC3733 - 37 x 33mm Polycrystalline Solar Cell 7,30 EUR
1 Cap 1000 uF 1.00 EUR
2 Transistor PN3904 NPN 0,60 EUR
2 Transistor PN3906 PNP 0.60 EUR
2 LDR 07, ø 5 1,50 EUR
2 Voltage detector 1381 4,80 EUR
1 Trimmer 4,7K 0,50 EUR
2 Solarbotics Regular Pager Motor 2 12,40 EUR
28,70 EUR



Schematic

Seeks light track

  • Actuators / output devices: 2x pager motor
  • Control method: 2x 1381 solar engine
  • Power source: 1/2 solar cell
  • Sensors / input devices: 2x LDR

This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/paco

Excellent
We like this. What’s the charge time / run time ratio? Are those videos in real time?

videos are in real time.i

videos are in real time.

i have not yet measured the charge/run ratio :slight_smile:

wow thats pretty good for
wow thats pretty good for solar power.

hi friend wat is the use of

hi friend wat is the use of trimmer & how to use it? as i am trying to make a light follower same as yours.