Jerad Jacob designed this board to monitor and control a swimming pool:
Here-Be-Dragons/Pool-Controller
osmosis has shared the project on OSH Park:
Jerad Jacob designed this board to monitor and control a swimming pool:
osmosis has shared the project on OSH Park:
ronald.sutherland created this driver board for a latching solenoid or relay coil:
three half bridge and a common half bridge that can be used to discharge a (9V/12V/24V) capacitively stored charge into a latching Solenoid or Relay coil
The design files are available on GitHub:
epccs has shared the board on OSH Park: