I think I got my answer now!! A 1.5ms bitstream (with a 20ms between pulses) will take the servo to= the center. 1 to 1.5ms will move the servo in one direction (for example = 1.25ms wil move appr. half way to the one direction) and 1.5 to 2 will move = it in the other direction... Please correct me if i'm wrong... Kindest regards Francois ----- Original Message ----- =46rom: Francois Robbertze To: Sent: Thursday, October 19, 2000 11:43 AM Subject: [PIC]:RC aircraft servo controlled by 16F84 Dear Piclist members, I want to use a old RC aircraft servo in one of my pic applications..= .Can someone direct me to a page on the net. (I get a error when searching= the archives) 1. The servo (FUTABA S100) has three wires (red, black and white). Ca= n someone help me with the connections (eg. black - gnd; red - +5V; and= white +5V signal from pic???) 2. As I understand the servo move one increment in one direction when= a 100ms pulse is applied and in the opposite direction if a 200ms pulse= is applied? 3. Is there some feedback from the servo that you can determine the p= osition of the rotor (if not how does the servo know the center position ever= y time I switch it on in the aircraft? Kindest regards Francois lllllllllll \\ ~ ~ // ( @ @ ) o------oOOo-(_)-oOOo-----o | | | Francois Robbertze | | fr10@mweb.co.za | | | o--------.oooO-Oooo.-------o -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:","[SX]:","[AVR]:" =3D ONLY! "[EE]:","[OT]:" =3Dher "[BUY]:","= [AD]:" =ADs -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads