Article
FT369 One-Chip Servo Controller
-
The edeFT639 is an 8-pin chip that will control five servos through one 2400-baud serial line. As you can see from the schematic, the only external components required are a decoupling cap, plus two resistors and a diode to withhold the negative swing of the RS232 line the circuit is connected to. In case TTL-swing (5 V) serial control is available, such as in PIC or Parallax Stamp systems, the control signal to the edeFT639 may be applied directly to pin 4.
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
Component list
Resistors:
R1 = 22k
R2 = 10k
Capacitors:
C1,C4 = 100µF 25V radial
C2,C3 = 100nF
Semiconductors:
D1 = 1N4001
D2 = 1N4148
IC1 = 7805
IC2 = edeFT639 (Elab Inc.; www.elabinc.com)
Miscellaneous:
5 off 3-way SIL pinheader
Evaluation software (VB application) from Elab Inc. website
PCB, ref. 054016-1
R1 = 22k
R2 = 10k
Capacitors:
C1,C4 = 100µF 25V radial
C2,C3 = 100nF
Semiconductors:
D1 = 1N4001
D2 = 1N4148
IC1 = 7805
IC2 = edeFT639 (Elab Inc.; www.elabinc.com)
Miscellaneous:
5 off 3-way SIL pinheader
Evaluation software (VB application) from Elab Inc. website
PCB, ref. 054016-1
Discussion (0 comments)