Has anyone played with one of the Arduino variants as the basis for a Dew heater controller.
http://www.oceancontrols.com.au/cont...o%20Pro%20Mini for some info on them.
I've not tried one yet but with multiple analog inputs and digital input/output they seem like they could be combined with multiple temperature sensors and a power stage and possibly a humidity sensor to create a fairly potent controller.
The Arduino Pro Mini
http://arduino.cc/en/uploads/Main/ArduinoProMini.jpghas the following specs
Summary
Microcontroller - ATmega168
Operating Voltage - 3.3V or 5V (depending on model)
Input Voltage - 3.35 -12 V (3.3V model) or 5 - 12 V (5V model)
Digital I/O Pins - 14 (
of which 6 provide PWM output)
Analog Input Pins - 6
DC Current per I/O Pin - 40 mA
Flash Memory - 16 KB (of which 2 KB used by bootloader)
SRAM - 1 KB
EEPROM - 512 bytes
Clock Speed - 8 MHz (3.3V model) or 16 MHz (5V model)
Also a digital temperature/humidity sensor for $42US
http://www.sparkfun.com/commerce/ima...-01-L_i_ma.jpg
http://www.sparkfun.com/commerce/pro...oducts_id=8257
I'm interested to find out if anyone else has played with this technology in case I'm missing something fundamental here.
Bob