HardLabs

Bobuino

llegoff·bobuino

Bobuino PCB layout, top view — open source AVR/Arduino board by llegoff
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About the Bobuino PCB

Bobuino is an open source AVR/Arduino PCB design by llegoff, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 68.5 × 53.2 mm, with 56 components from 30 distinct parts.

Its main chip is the ATMEGA1284-A, from the AVR/Arduino family. Other key parts include the CH340G, AP1117 and 4050. By type, the board carries 17 resistors, 15 capacitors, 6 connectors, 5 ICs, 5 diodes and 2 crystals.

It belongs with the displays & leds designs in this gallery.

From the project

atmega 1284 arduino compatible

design inspired of Croos Road Fencing Center work

- microSD card - lcd display 82x48 pixels - rotary encoder - wifi esp8266

rev1 (/v1backup) - U5 vcc and gnd are inverted !!!

rev2 - correct connection for U5, D1, D2 and D5

Bobuino, from the project README
From the project README

Main components on the Bobuino

ATMEGA1284-ACH340GAP11174050

Bobuino bill of materials (BOM)

56 components, 30 distinct parts.

QtyPartRefs
1
ATMEGA1284-A
U1
1
CH340G
U2
2
AP1117
U3, U4
1
4050
U5
1
BSS138
Q1
1
16Mhz
X1
1
12Mhz
X2
1
USB-MINI-B
CON1
1
LCD5110
P1
1
CONN_02X03
P2
1
CONN_02X04
P3
1
power
P4
1
CONN_01X03
P5
1
uSD_CARD
??1
1
FUSE
F1
1
SW_PUSH
Reset1
1
ENCODEUR_rotatif
S1
1
ARDUINO_SHIELD_R3
SHIELD1
1
RX
D1
1
TX
D2
Show 10 more
QtyPartRefs
1
L
D3
1
1N5819
D4
1
1N4148
D5
4
22p
C1, C2, C3, C4
5
100n
C5, C6, C7, C12, C13
4
10u
C8, C10, C14, C15
2
47u
C9, C11
9
1k
R1, R2, R3, R4, R5, R7, R8, R9 +1
7
10k
R6, R11, R12, R13, R14, R16, R17
1
0
R15

Bobuino design files

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

Bobuino: common questions

What microcontroller does the Bobuino use?

The Bobuino is built around the ATMEGA1284-A, from the AVR/Arduino family.

How big is the Bobuino PCB?

The Bobuino measures 68.5 × 53.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bobuino?

56 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bobuino design files?

From the llegoff/bobuino repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bobuino design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which llegoff chose for the repository.

Can I test firmware for the Bobuino 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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