Nuts & Volts - February 2006

BY CHARLES IRWIN

pensate for the PIC’s inability to deal with negative numbers. The PIC must be programmed with the code “TRHNegNr.hex” within “TRHProj.zip” available from the Nuts & Volts website. The zipped file also contains all of the figures mentioned in this article, all of the files generated by the PIC Compiler (suitable for use and modification by the MPLAB IDE program available from www.micro chip.com for free), and also a BASIC Stamp II version of the program; i.e., a BASIC Stamp II could be used instead of the 16F870 PIC. Check the file “ TRHProj.bs2” for the connections between the BS2 chip and the SHT15s, LCD display, and jack plugs.

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