Hello, I am trying to build a heated blanket that works if the body temperature of the patient is 95F or lessWhat should I do? should you use an Arduino to control everything? or just a thermistor? and how do I use it? I just want some basic ideas to help me build this thingI already found heating pads that can be controlled depending on the voltage applied, so if the voltage is higher, the temperature of the pads will increaseThank you
A heated blanket already does thatIt has temperature sensors built into it to control the power.
Heat pad has two ways to control the heatThe most simple one is a mechanical heat sensing control that turning on and off frequently to control the time that allow power goes through the heat padThe more complex one uses Triac chip that control the power angle passes through heat padBoth do not contain heat sensor to monitor the pad actual temperature because both control devices are hanging outside along the power cord and a few feet away from the heat padThey are not control the voltage !!! Arduino could not control high voltage AC power and it is too expensive to use on a cheap price heat pad .
The biggest challenge would be to find an agreeable way of measuring the body temperature independently from the temperature of the heating blanketNext question would be whether you want an on/off behaviour (as indicated by your question) or a gradual controlOnly in the latter case a uC would offer any benefits, and even then, an Arduino would be massive overkill.
A heated blanket already does thatIt has temperature sensors built into it to control the power.
Heat pad has two ways to control the heatThe most simple one is a mechanical heat sensing control that turning on and off frequently to control the time that allow power goes through the heat padThe more complex one uses Triac chip that control the power angle passes through heat padBoth do not contain heat sensor to monitor the pad actual temperature because both control devices are hanging outside along the power cord and a few feet away from the heat padThey are not control the voltage !!! Arduino could not control high voltage AC power and it is too expensive to use on a cheap price heat pad .
The biggest challenge would be to find an agreeable way of measuring the body temperature independently from the temperature of the heating blanketNext question would be whether you want an on/off behaviour (as indicated by your question) or a gradual controlOnly in the latter case a uC would offer any benefits, and even then, an Arduino would be massive overkill.
