I have been putting off buying 1wire barometers and humidity sensors due to
price. I have since discovered that I can buy I2C barometers and pressure
sensors for $10 - $15.00.
I was thinking of using a simple PIC (PICAXE) to interface to the sensors
and then use a 1wire counter coupled with maybe 3 digital I/O wired between
the the pic and 1wire. I could then pulse a input line on the PIC to send
one measurement to the counter (simply as counts (0-100% or 0-1200mbar) and
then simply read the delta change in the counter module. As I will
eventually want a rain gauge I shall need the 1wire counter anyhow. Having
two channels on the counter I was thinking it maybe easy to use the second
channel for this.
Anybody else got any other simple idea's to get this type of info into
rrdtools running on my server. I could also simply provide an ascii rs232
signal direct to the port however liked the idea of using the 1wire bus.
rob
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