Bryan Mayland
TVWBB Hall of Fame
ALERT! For those running servos on their HeaterMeters, there's a big change coming down the pipe you need to be aware of and adjust your hardware for.
Servo output is being moved from digital pin 5 (the blower pin) to digital pin 8
If you leave your servo connected in the way described in the wiki, it won't work and might burn out the servo motor. Any HeaterMeter firmware dated after today (20130725B) will have this change (revision B hardware only). Why am I screwing you like this? Well we all like the speed of using a fan to get the BBQ started, so I'm changing HeaterMeter to drive both simultaneously. This way you can use the fan+servo to start up the pit then disconnect the fan, or leave them both connected for double action.
I'll probably add options for "only run fan if output is 100%" and "fully open servo if output > 0%". That will allow the fan to only be used when the servo isn't cutting it, and the servo to be used as an on/off damper for the blower.
Servo output is being moved from digital pin 5 (the blower pin) to digital pin 8
If you leave your servo connected in the way described in the wiki, it won't work and might burn out the servo motor. Any HeaterMeter firmware dated after today (20130725B) will have this change (revision B hardware only). Why am I screwing you like this? Well we all like the speed of using a fan to get the BBQ started, so I'm changing HeaterMeter to drive both simultaneously. This way you can use the fan+servo to start up the pit then disconnect the fan, or leave them both connected for double action.
I'll probably add options for "only run fan if output is 100%" and "fully open servo if output > 0%". That will allow the fan to only be used when the servo isn't cutting it, and the servo to be used as an on/off damper for the blower.