search

bobc / bobc_hardware

Various hardware projects
84 stars 116 forks source link

RAMP-FD: heater outputs are on if power from Due not present #19

Open bobc opened 10 years ago

bobc commented 10 years ago

If the Due is not powered but RAMPS-FD is, then the heater outputs (D8-D11) default to an on state.

Redesign FET control circuit to ensure that heater outputs are not active is Due is not powered.

cefiar commented 10 years ago

New design implemented. Needs testing.