FutureKit Temperature Controller

PDF data sheet: http://futurekit.com/2009/manual/future/eng/PDF_FK9/fk951te-1_a3.pdf

This is an approximately 7x9cm card with a large 4 digit LED display, 5 push buttons, relay, LED, socket to connect a temperature sensor on a 3 wire ribbon, and a 7806 6vdc regulator.

The CPU is an ATMega8 Sensor is a one-wire DS18B20 https://www.sparkfun.com/products/245

7 segment LED display: port D0-D7 control the segments:

D0 g
D1 c
D2 d
D3 e
D4 dt
D5 b
D6 f
D7 a

port B0,C3,C4,C5 select the digit

C5 1 (numbered left to right)
C4 2
C3 3
B0 4

Push buttons are on

1 MOSI
2 MISO
3 SCK
4 D7 (shared with 7-seg segment 'a')
5 D6 (shared with 'f')

Relay is on C0

Sensor #1 is on port B1 optional sensor #2 is on port B2