- Joined
- Jun 14, 2018
- Messages
- 172
- Reaction score
- 356
- Location
- Corrales, NM
- What state or country do you live in
- New Mexico
Upgraded my doser build today, since it’s two channel ,decided to put the pi pwm in actual use.
Build: pi zero, perma proto board, l293d, one lm2596 (for 12v to 5v conversion), two 12v peristaltic pump, 12v 2amp power adapter
Housing : uxcell enclosure , nylon standoff’s
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Circuit closeup : I can control the speed, duration and direction of both peristaltic pumps using a single l293d chip. Pi prvoided two pwm input and 4 gpio for direction control . Green wires are pi pwm in, blue are gpio , yellow are doser pwm our
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Pi zero is hidden below the perma proto board
Dosers
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Looks so much better than the old wooden enclosure. I’ll put it to use back again, and let you know how it went. Initial testing are all green. There was a bug in pi pwm, @philshel pointed our earlier, fixed that as well
I think I have all the parts for this, but I'm not sure where to start with the build. Is there a Frizing for this?
Thanks

He died while doing his hobby, collecting corals in the Ocean. BTW you made a great 3D solution!

