I would like to find out what you are using for drive train and track. I have been looking for a suitable platform but have been cursed with wanting to do it as small as possible. Any input would be appreciated. Thanks, Rob -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Kosmerchock, Steve Sent: Thursday, December 07, 2000 1:01 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT]: Robotics with PIC16F877 anyone?? Henry, I am doing a project that is exactly like yours. I am using a PIC16F873 running at 4MHz. I am using 2 dual H-BRIDGE ckts to drive my motors. I am using two DC motors for movement. My vehicle uses a set of tank tracks. Using this set-up I am able to move FWD, RVS, CCW (slow), CCW (fast), CW (slow) and CW (fast). I am using 4 optic reflective sensors to tell the MCU that there is something by the robot (not quite perfected yet, some materials don't reflect very well!!). The optic sensors are interfaced to the PIC using a quad comparator (LM339). It has 7 LEDs (3 green, 4 red) to display different patterns, depending on it's "behavior". I just started writing the code, this will be the "fun" part. It is going to be a XMAS present for my son, working like crazy to get it done in time. Talk about a DEADLINE ................ Once everything is finished I will put all the info on my webpage. Until then, I hope this helps!! Best regards, Steven Steven Kosmerchock Radio Frequency Systems Phoenix, Arizona USA (WORK) www.rfsamericas.com www.geocities.com/researchtriangle/lab/6584 "Great spirits have always encountered violent oppposition from mediocre minds."--A.Einstein -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu