If we disable the pull-up could we then use an external pull-down and invert the return signal?mikerr wrote:Anyone played with inputs other than the touch/ground examples ?
I see there is a "start cog" block for disabling the pullup resistors:
but that doesn't do what I want
- I'm trying to sense a 3v "high" on the leg, looks like I may need a transistor?
also what do these blocks do ?
Doesn't seem similar to "leg 0 grounded" as "get leg 0 " always returns 1 even when not grounded ?!
Thomas MacPherson-Pope recommends using a Transistor:I'd like to connect a peripheral which will pull it's output high (5V) when it's condition is satisfied, all of the instructions I have found so far indicate how to operate a switch that connects to ground rather than one that pulls high.
Should I add a physical pulldown resistor (as there isn't a pulldown option in blockly)?
Will I need to add a voltage divider to the output to drop the voltage level onto the input leg?
CodeBug has pullup resistors so the inputs default to high. To achieve what you need you could use a transistor to pull the pin to CodeBug's ground when your peripheral
Tom Macpherson-Pope @T_Mac_P
@mikered set leg will output high or low . get leg will return 1 unless grounded (as the legs are pulled up).