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Shield

apmarshall3·general-purpose-robotics-shield·PCB_V1/Shield.kicad_pcb

Shield layout, top view — open source AVR/Arduino board by apmarshall3
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About the Shield

Shield is an open source AVR/Arduino PCB design by apmarshall3, published on GitHub. It is a 2-layer board measuring 83.2 × 69.2 mm, with 82 components from 42 distinct parts.

Its main chip is the ARDUINO_UNO_R3, from the AVR/Arduino family. Other key parts include the 4077, NCP1117-5.0_SOT223, L298P, LMV331 and LMV358. By type, the board carries 22 diodes, 16 capacitors, 13 resistors, 12 connectors, 6 jumpers and 5 ICs.

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

Main components on the Shield

4077NCP1117-5.0_SOT223L298PLMV331LMV358ARDUINO_UNO_R3

Shield bill of materials (BOM)

82 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
4077
U1
1
NCP1117-5.0_SOT223
U2
1
L298P
U3
1
LMV331
U4
1
LMV358
U5
1
ARDUINO_UNO_R3
Arduino_UNO_R3
A1
1
Q_PMOS_GDS
Q1
1
2N7002DWK
Q2
1
Q_PMOS_GDS
Q3
1
DualPMOS
Q4
1
ADC
J1
1
BATT
J2
1
PWR SW
J3
1
SCREW_TERMINAL_01X04
Screw_Terminal_01x04
J4
1
SERVO1
J5
1
ULTRA
J6
1
ENC1
J7
1
SERVO2
J8
1
ENC2
J9
1
I2C
J10
Show 22 more
QtyPartRefs
1
SERVO3
J11
1
SERVO4
J12
1
Fuse
F1
6
SOLDERJUMPER_2_OPEN
SolderJumper_2_Open
JP1, JP2, JP3, JP4, JP5, JP6
1
PWR SW
SW1
1
SW_DIP_X01
SW_DIP_x01
SW2
14
SS14
D
D1, D2, D3, D5, D6, D7, D8, D9 +6
2
D
D4, D21
1
5V
D10
4
LED
D17, D18, D19, D20
1
APA102
D22
13
100N
100n
C1, C3, C6, C7, C8, C9, C10, C11 +5
1
100U
100u
C2
1
C
C4
1
10U
10u
C5
1
10K
10k
R1
2
0R15
R2, R3
1
150R
R4
1
2K5
R5
2
100R
R6, R7
2
1K
R8, R9
4
10K
10k
RN1, RN2, RN3, RN4

Shield design files

The KiCad project lives in the apmarshall3/general-purpose-robotics-shield repository on GitHub; these links point at the commit this page was built from.

Shield: common questions

What microcontroller does the Shield use?

The Shield is built around the ARDUINO_UNO_R3, from the AVR/Arduino family.

How big is the Shield?

The Shield measures 83.2 × 69.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Shield?

82 components, from 42 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 Shield design files?

From the apmarshall3/general-purpose-robotics-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 Shield design in my own project?

The repository has no license, so all rights stay with apmarshall3. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Shield without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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