Re: help with temp display for my Unimog


doug wrote:
Hello everyone,
Thanks in advance for anyone who might offer some help. I have a
Unimog with a few heat sensitive areas that I would like to keep track
of. The biggest area of concern is the transmission followed by the 4
portal reduction boxes and the 2 drive axles. For the time being I'm
using my digital multimeter and what I believe to be a "K" type
thermocouple. The thermocouple thingy is zip-tied to the trans.
dipstick with the wires running into the cab. I'd like a cleaner,
more permanent solution the I could maybe monitor more systems at
once. I can get the thermocouples fairly cheaply and can probably
find a way to mount/install them easily enough. Does anyone have or
know of a way to build (I know very little electronics so go easy on
me) something to monitor several of these at once or even cycle
through them automatically or with the push of a button or turn of a
knob. A small lcd display would be nice, or some way to display it on
another screen/monitor as I'm trying to figure out a back-up camera
and could display the temp info on that monitor. It's a small 5.5
inch b&w crt display with a few inputs. I'm open to anything. cheap
and easy being impotant as I am both.

A PIC16F819 has several analog inputs to read all of your sensors. The
leftover lines are sufficient to run an LCD display (6 lines). You can
put all of the readings on one 16x2 display at the same time.

Basically, 2 parts in its simplest form.

Luhan

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