HardLabs

Ocelot vA4

turboedge·SpeedyBoards·OCELOT/Ocelot-vA4/Ocelot-vA4.kicad_pcb

Ocelot vA4 PCB layout, top view — open source AVR/Arduino board by turboedge

About the Ocelot vA4 PCB

Ocelot vA4 is an open source AVR/Arduino PCB design by turboedge, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 80 × 99.8 mm, with 123 components from 31 distinct parts.

Its main chip is the ATmega2560-16AU, from the AVR/Arduino family. Other key parts include the IXDN602SIA, CP2102N-A02-GQFN20R and LMV321LILT. By type, the board carries 45 capacitors, 44 resistors, 22 LEDs, 5 ICs, 2 fuses and 2 diodes.

It belongs with the usb & debug tools designs in this gallery.

From the project

EMS boards powered by Speeduino

The reset button was added as the only reset connection made to the microcontroller to prevent unwanted resets from USB connected devices. There is a caveat to this arrangement though. While the first time a firmware is loaded it will go on without intervention, subsequent times will require the user to hold the reset button down then release the button when the program starts the upload process. If the upload does not start right away go back and try again.

Main components on the Ocelot vA4

IXDN602SIAATmega2560-16AUCP2102N-A02-GQFN20RLMV321LILT

Ocelot vA4 bill of materials (BOM)

123 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
IXDN602SIA
IC1, IC2
1
DNP
ATmega2560-16AU
U1
1
CP2102N-A02-GQFN20R
CP2102N-Axx-xQFN20
U6
1
LMV321LILT
U7
1
PJA3415A-AU_R1_000A1
FDN340P
Q13
1
YSX321SL
16MHz
Y1
2
0ZCJ0050AF2E
500mA/1A 24V
F1, F3
1
KMS233GPLFG
SW1
22
SML-310LTT86
RED
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +14
1
UDT14A05L03
SP0503BAHT
D35
1
BAS70-02V-V-G-08
BAS70KFILM
D36
25
CL21B104KBFNNNE
u1
C1, C2, C3, C4, C5, C6, C7, C8 +17
9
CL21B224KBFNNNE
u22
C9, C10, C11, C12, C21, C39, C45, C49 +1
4
CL21B105KBFNNNE
1u
C23, C28, C29, C40
1
CL21B103KBCNNNC
u01
C30
2
CL10A475KO8NNNC
4u7
C41, C43
2
CL10B104KB8NNNC
u1
C42, C44
2
VJ0603A220JXACW1BC
22p
C46, C47
5
RK73H2ATTD1001F
1k
R1, R23, R24, R68, R69
1
ERA6AEB392V
3k9 0.1%
R2
Show 11 more
QtyPartRefs
5
ERA6AEB2491V
2k49 0.1%
R3, R4, R5, R12, R13
1
ERA6AEB102V
1k 0.1%
R6
12
RK73H2ATTD4700F
470r
R7, R8, R9, R10, R11, R15, R16, R17 +4
4
CRG0603F4K7
4k7
R14, R56, R72, R81
4
RK73B1JTTD104J
100k
R27, R28, R29, R30
5
RK73H2ATTD4700F
1k
R35, R36, R37, R38, R73
2
RK73H2ATTD2200F
220r
R70, R71
1
CRGCQ0603F1K0
1k
R76
1
CRCW040222K1FKED
22k1
R77
1
CRCW040247K5FKED
47k5
R78
2
RC0603FR-1010KL
10k
R79, R80

Ocelot vA4 design files

The KiCad project lives in the turboedge/SpeedyBoards repository on GitHub; these links point at the commit this page was built from.

Ocelot vA4: common questions

What microcontroller does the Ocelot vA4 use?

The Ocelot vA4 is built around the ATmega2560-16AU, from the AVR/Arduino family.

How big is the Ocelot vA4 PCB?

The Ocelot vA4 measures 80 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ocelot vA4?

123 components, from 31 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 Ocelot vA4 design files?

From the turboedge/SpeedyBoards 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 Ocelot vA4 design in my own project?

Yes, under the terms of its GPL-2.0 license, which turboedge chose for the repository.

Can I test firmware for the Ocelot vA4 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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