HardLabs

Motor shield

semify-eda·motor-shield

Motor shield layout, top view — open source board by semify-eda
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About the Motor shield

Motor shield is an open source PCB design by semify-eda, published on GitHub. It is a 4-layer board measuring 65.9 × 52.9 mm, with 80 components from 32 distinct parts.

Other key parts include the 74HC04, 74HC08, 74HC32, DRV8874PWPR and LMV321. By type, the board carries 34 capacitors, 22 resistors, 7 ICs, 6 connectors, 6 diodes and 3 transistors.

It belongs with the robotics & motion, dev boards & breakouts and power & battery designs in this gallery.

From the project

The DCC-EX Motor Shield is based on two H-bridge motor drivers with integrated current sensing feedback to drive inductive loads like relays, solenoids, DC and stepping motors.

The DCC-EX Motor Shield is based on two H-bridge motor drivers with integrated current sensing feedback to drive inductive loads like relays, solenoids, DC and stepping motors. It is based on the DRV8874 from Texas Instruments (TI).

Powering of Arduino boards is possible due to the on board DCDC buck converter supporting a wide input supply range from 9 to 30V. The reverse polarity protection prevents damage to the circuit and its components in case the power supply is accidentally connected with reversed polarity.

Motor shield, from the project README
From the project README

Main components on the Motor shield

74HC0474HC0874HC32DRV8874PWPRLMV321MP9942GJ

Motor shield bill of materials (BOM)

80 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HC04
U101
1
74HC08
U102
1
74HC32
U103
2
DRV8874PWPR
U104, U105
1
LMV321
U106
1
MP9942GJ
U201
2
AO3400A
Q101, Q102
1
AOD4185
Q201
2
MC 1,5/ 2-G-3,5
J101, J103
1
CONN_02X04_SMD
STEMMA QT
J105
1
Conn_02x04_smd
J106
1
C160404
Conn_01x04_f
J107
1
Barrel_Jack_MountingPin
J201
1
C720477
Switch
SW101
4
0603_LED_RED
0603_LED_Red
D101, D102, D103, D104
1
10V
D201
1
0603_LED_GREEN
0603_LED_Green
D202
1
56UH
56uH
L201
11
100N
100n
C101, C104, C107, C108, C114, C115, C212, C218 +3
5
C13585
10u VM
C102, C105, C203, C204, C205
Show 12 more
QtyPartRefs
3
C307331
100n VM
C103, C106, C214
2
C337699
22n VM
C109, C110
8
22U
22u
C111, C215, C216, C217, C219, C220, C221, C222
2
C337699
22n
C112, C113
2
C125975
100u VM
C201, C202
1
C440198
10u VM 0805
C213
13
47K
47k
R101, R102, R103, R104, R107, R108, R109, R110 +5
2
1K43
1k43
R111, R112
2
732R
R113, R114
3
470K
470k
R116, R202, R205
1
20R
R203
1
5K76
5k76
R208

Motor shield design files

The KiCad project lives in the semify-eda/motor-shield repository on GitHub; these links point at the commit this page was built from.

Motor shield: common questions

How big is the Motor shield?

The Motor shield measures 65.9 × 52.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Motor shield?

80 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Motor shield design files?

From the semify-eda/motor-shield repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Motor shield design in my own project?

The repository has no license, so all rights stay with semify-eda. Use it as a reference, and ask the author before reusing the design.

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