Very simple thermometer with PIC16F88, two LM35 sensors and KS0108 graphic LCD.

Here's video where I'm heating sensors with soldering iron.

Screenshot from Proteus VSM. Note that almost every pin of PIC16F88 is used.

Here's the source code, I'm sorry it isn't commented very well. The code is written for CCS C compiler. There's also Proteus VSM simulation file and compiled hex file.