On Sat, 26 Feb 2011 11:55 -0800, "DIN ROFIE" wrote: > hey, > i really need help on pic16f877 using mplab > previously,i only play along with pic 16f84 > i intend to create a program like a temperature controller > 1. set temperature > 2.if temperature inside box exceeding set temperature heater will off > below i send along the flow chart and the circuit of the design > hope you guys can help me about this program with fully write program or > any=20 > info > thanks Hi Din, Please describe the user interface and also the input sensor and output actuator. I assume you are programming in assembly but you should confirm what language. If this is a school assignment you should say. I only ask because it sounds like one based on your choice of the 16F877 and you have a flow chart. Bob --=20 http://www.fastmail.fm - IMAP accessible web-mail --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .