This is a journal for a BasicX AP I've been working on for the last month:i received my BasicX processor the first week of April and spent the next week pounding out the code .i then spent the next week simulating and adding a few niceties like way point and setup files.the next two weeks was spent waiting for the gps module and other parts .spent the last week making a proto board and a few changes to the gps parser to work with the gpstoday 5-5-08 first test flight : things went very well and it performed better then expected (wee haa!!)ok a few features of my ap:no distance restrictionscan fly any ware in the worldunlimited WPseasy set up file ie trim,ectuses spherical geometry in the nav routine instead of flat plain approximation5-8-08test fly ; changed "P" to 0.5 with very nice results flight path much straighter between wps5-9-08hardware list1x ettrex 32 cannel 5hz gps modual1x BX-241x DE-SWADJ reg from dimension engineering1x 5v LDO reg3x 0.1 uf caps1x 100 uf cap2x 1k ohm resistors1x parallax servopal1x tact button (reset)staight pin connectors1x small perfboard1x fma FS-8 failsafe reciever and copilot (stabilization)5-16-08changed gps serial comm , pumped up to 5hz update looptest flight went good ,some oscillations in yaw5-17-08changed cg ,changed prop to 10x7 ,cg got rid of yaw problem , flew in 15-20 mph winds , worked better then expected , noticed 35 deg + dog tracking on cross wind leg, no missed wp no "turn arounds"will turn up P slightly untill it oscillats and will try Ziegler-nichols method on PID loop5-18-08 flew for 15min "no hands" burned 750 ma noticed some trubble turning left against wind5-19-08 changed to figure 8 pattern, changed gain to 0.75, little left trim in auto mode, flew for 10min before rain5-21-08 demo flight for snohomish co. search and rescue. went well
Comments
What are you using for stabilization? An onboard IMU or a FMA Co-Pilot? I can't tell from your hardware list...
Paul
BTW - Your EZG looks happily unfamiliar with the ground like my EZG Frankenplane II !
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