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MotorBox

MotorBox
MotorBox

Before a robot moves, no matter if that’s walking, swimming, cruising a maze or tearing up asphalt, you need to address the interfacing and driving of different types of motors. Developing the relevant algorithms will increase project development time as tweaks and adaptations seem to be necessary for each new application. This project solves these issues by presenting a generic motor driver board that can drive three different types of motors, stepper, DC and servo, without having to program the algorithm for each motor. MotoBox is ideal for newcomers to robotics as well as for old hands who can use the board for prototyping and development. The board can also be used with two different types of motors simultaneously!

 

  


 

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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-R4,R6,R7 = 10kΩ

R5,R8,R15 = 4kΩ7

R9,R10 = 0.22Ω 5W

R11,R13 = 330Ω

R12,R14 = 470Ω

R16 = 5kΩ6

R17 = 1kΩ5

 

Capacitors

C1 = 100µF 40V radial

C2-C5,C10,C11,C13,C15-C19,C21 = 100nF

C6-C9 = 1µF 25V radial

C12,C14 = 220nF

C20 = 47µF 25V radial

C22 = 10µF 25V radial

C23 = 100nF

 

Semiconductors

D1-D12 = 1N5400

D13 = 1N4148

D14,D15 = bicolour LED, 5mm, 2 terminals

D16 = LED, 5mm

IC1 = PIC16F628-04/P, programmed, order code 070129-41

IC2 = 78L05

IC3 = MAX232

IC4,IC5 = L298N with heatsink for Multiwatt15 case (mouser.com)

IC6 = LM358

K1,K5-K10 = 2-way PCB terminal block, lead pitch 5mm

K2 = 3-way SIL pinheader

K3 = 9-way sub-D socket (female), angled pins, PCB mount

K4 = 4- way SIL pinheader

PCB, ref. 070129-1

PIC source & hex code files, free download # 070129-11.zip (coming soon..) 

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