Re: command and telemetry questions
Here is something that works, have done it myself. This was posted by Scott Miller.
Here's a quick way to add a 1-wire temperature sensor to an OT1m or
OT2m: Just cut about 2 mm off the end of a DS18S20's leads, and insert
it into an RJ11 connector, so that the rounded part of the chip is away
from the tab and (with the tab down) the leads are in the 3rd, 4th, and
5th of the 6 slots, then just crimp it in.
The part you need is sold by Argent, here is the link..
You will need a crimping tool and a RJ12 plug.
I cannot speak for external control of a relay, perhaps others have done this and can speak first hand of it. I suspect its do-able.
--- In firstname.lastname@example.org, "boeing377" <BOEING377@...> wrote:
> I am new to APRS, bought a Tracker 2 (actually Argent's new transceiver
> box with the Tracker 2 built in) and wish to do the following:
> remotely turn on a 1 KW engine preheater, runs on 110 VAC.
> read the engine coolant temp at a remote location, can use just about
> any type of temp sensor that will work with Tracker 2, diode,
> thermistor, thermocouple, etc.
> remotely turn off the engine preheater at any time.
> The Tracker 2/xcvr location has good repeater coverage.
> Any suggestions appreciated.