Temp/Humidity componants
Posted: Sun Jan 19, 2014 5:18 am
I want to build a Outdoor temperature, indoor Humidity sensor/display to control my humidifier.
Since what you set your humidifier to is based on out door temperature, the temp sensor will have to be external and remotely connected. I do plan on using a hard wire connection. Was thinking my old temperature probe from my weather station. I think it just uses a thermistor in it. Not sure what to use for the humidity sensor. there are many to choose from, some analog some digital. only needs to read 5% up to 60% max. Temperature from -20F - 100F it does get cold here in Michigan.
I was looking at microchip's web site, and could not find their PIC picker that they use to have. Still looking for that one.
I have a few 16F series chips here now, but most only have ADC inputs on them.
I will be using FC ver 5.5 to build this.
I am pretty sure I can handle the code part. Not to sure about PIC or Humidity sensor. Will be using a back lit 4x20 LCD. Got pretty good at coding those.
Will need:
Input for temp/Humidity sensor.
On/Off switch input.
+- Switch input (to over ride the setting by +- 5%)
I have the relay, voltage regulators, resistors and other hardware I would need.
Temp sensor???
Humidity Sensor???
PIC????
I have read most of the post on here but still not sure what to use.
Suggestions?
Since what you set your humidifier to is based on out door temperature, the temp sensor will have to be external and remotely connected. I do plan on using a hard wire connection. Was thinking my old temperature probe from my weather station. I think it just uses a thermistor in it. Not sure what to use for the humidity sensor. there are many to choose from, some analog some digital. only needs to read 5% up to 60% max. Temperature from -20F - 100F it does get cold here in Michigan.
I was looking at microchip's web site, and could not find their PIC picker that they use to have. Still looking for that one.
I have a few 16F series chips here now, but most only have ADC inputs on them.
I will be using FC ver 5.5 to build this.
I am pretty sure I can handle the code part. Not to sure about PIC or Humidity sensor. Will be using a back lit 4x20 LCD. Got pretty good at coding those.
Will need:
Input for temp/Humidity sensor.
On/Off switch input.
+- Switch input (to over ride the setting by +- 5%)
I have the relay, voltage regulators, resistors and other hardware I would need.
Temp sensor???
Humidity Sensor???
PIC????
I have read most of the post on here but still not sure what to use.
Suggestions?