Article
Simple Servo Tester
Nice SMD soldering exercise
This small test circuit is a handy aid for anyone who frequently works with servos. It is often sufficient that you can connect a servo to this circuit and try with a potentiometer whether the servo operates properly over its entire range.
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
PCB
Extra info / Update
Note: Since the original publication of this project/article, some of the components, software elements, webpages and other elements might have been updated or changed.
Component list
COMPONENT LIST
Resistors
(all SMD 0805)
R1 = 24kOhm, 5%
R2 = 1 kOhm, 5%
R3 = 15kOhm
R4 = 243kOhm
R5 = 681kOhm
R6 = 1MOhm
P1 = 10kOhm linear potentiometer
Capacitors
C1,C2,C3,C4 = 100nF
C5 = 47µF 25V (e.g. Panasonic EEEFT1E470AR)
C6 = 10µF 50V (e.g. Panasonic EEEFT1H100AR)
Semiconductors
D1 = 30V 0.5A Schottky diode, SOD323 case (e.g. Diodes Inc. B0530WS-7-F)
IC1 = LTC6992CS6-1, 6SOT-23 case, Linear Technology
IC2 = MCP6002-I/SN, SOIC8 case, Microchip
IC3 = MC7805BDTG, DPAK case, On Semiconductor
Miscellaneous
K1 = 2-pin pinheader, 0.1’’ pitch
K2 = 6-pin pinheader, 0.1’’ pitch
P1 = 2-pin pinheader, 0.1’’ pitch
PCB # 120542-1
Resistors
(all SMD 0805)
R1 = 24kOhm, 5%
R2 = 1 kOhm, 5%
R3 = 15kOhm
R4 = 243kOhm
R5 = 681kOhm
R6 = 1MOhm
P1 = 10kOhm linear potentiometer
Capacitors
C1,C2,C3,C4 = 100nF
C5 = 47µF 25V (e.g. Panasonic EEEFT1E470AR)
C6 = 10µF 50V (e.g. Panasonic EEEFT1H100AR)
Semiconductors
D1 = 30V 0.5A Schottky diode, SOD323 case (e.g. Diodes Inc. B0530WS-7-F)
IC1 = LTC6992CS6-1, 6SOT-23 case, Linear Technology
IC2 = MCP6002-I/SN, SOIC8 case, Microchip
IC3 = MC7805BDTG, DPAK case, On Semiconductor
Miscellaneous
K1 = 2-pin pinheader, 0.1’’ pitch
K2 = 6-pin pinheader, 0.1’’ pitch
P1 = 2-pin pinheader, 0.1’’ pitch
PCB # 120542-1
Discussion (0 comments)