文件名称:060090-UK
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Although accurate digital thermometers
are now available at low cost, it remains
exciting and instructive to build one your-
self. The present circuit is particularly
intended to help the reader in the use of
a PIC processor Type PIC16F84 (see
www.microchip.com), a temperature sen-
sor with 1-Wire protocol Type DS1820
(see www.maxim-ic.com), an LCD screen
with 2x16characters (HD44780 com-
patible) and a light sensor with an LDR
that determines whether the background
lighting of the LCD should be on
are now available at low cost, it remains
exciting and instructive to build one your-
self. The present circuit is particularly
intended to help the reader in the use of
a PIC processor Type PIC16F84 (see
www.microchip.com), a temperature sen-
sor with 1-Wire protocol Type DS1820
(see www.maxim-ic.com), an LCD screen
with 2x16characters (HD44780 com-
patible) and a light sensor with an LDR
that determines whether the background
lighting of the LCD should be on
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060090-UK.pdf