As promised earlier, i started the temperture controll project.
The last Atmel AVR in DIP package i had went to some ‘black box’. Have no sources for firmware, so i don’t want to touch it now.

It happens i’ve got Atmega8 in TQFP package. The only problem is the connection of TQFP to veroboard is either complicated or expensive. Read the rest of this entry »

Brrrr… Too cold.
Ever had a cold shower in (almost) winter time?

This is because the boiler behaves strangely. Although the it’s full of hot water, cold water is going out.

So, the pile of details gave me: MCU Atmega8, by Atmel; some LM335, temperature sensors by National.com. A pair of CD4051 will allow to use up to 16 analog inputs to the Atmel MCU.

Also, schematics at
http://www.geocities.com/vk3em/avr-tempc/avr-temp.htm. It has some weird details, anyway i will try to master some kind of temperature sensor for the boiler. Just to make sure the will be enough hot water when i’m going to the shower.
Brr…