Friday, April 30, 2010

testing: 555-based servo tester

Schematic used: www.uoguelph.ca Servo used: Yeah Racing SV-0006 Micro Servo Notes: - 850k substituted for R2, that's all I could find - 0.0271uF substituted for C1 (was unstable at 0.027uF; 273+101, again, all I could find), works fine but as you may be able to see/hear, center is offset to the right (100% right in servo is 80% or so right in circuit) - Diode is to prevent reverse polarity, and also used to clip negative to (crude on/off switch) - 7806 voltage regulator underneath servo plug - We got a coqui frog in our backyard ):



http://www.youtube.com/watch?v=e4Nq25KAD48&hl=en

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