HardLabs

Beetje 32U4 Blok

aspro648·Leonardo

Beetje 32U4 Blok PCB layout, top view — open source AVR/Arduino board by aspro648

About the Beetje 32U4 Blok PCB

Beetje 32U4 Blok is an open source AVR/Arduino PCB design by aspro648, published on GitHub. It is a 2-layer board measuring 68.6 × 53.3 mm, with 33 components from 25 distinct parts.

Its main chip is the ATMEGA32U4-AUR, from the AVR/Arduino family. Other key parts include the LP2985-33DBVRG4, LMV358IDGKR and NCP1117ST50T3G. By type, the board carries 9 resistors, 7 capacitors, 4 ICs, 4 diodes, 2 crystals and 1 transistor.

From the project

KiCad based clone of the Arduino Leonardo

Leo, the Arduino Leonardo clone done in KiCad.

https://rheingoldheavy.com/arduino-from-scratch-part-5-selecting-comparator-parts/

- 1 ea., Perfect Purple PCB from OSH Park, with not so perfect layout from kicad.pcb file. - 1 ea., U1 IC REG LINEAR 3.3V 150MA SOT23-5, LP2985-33DBVRG4, https://www.digikey.com/short/j29pqr - 1 ea., U2 IC OPAMP GP 1MHZ RRO 8VSSOP, LM358DGKR, https://www.digikey.com/short/jnd53r - 1 ea., U3 IC REG LINEAR 5V 1A SOT223 NCP1117ST50T3G, https://www.digikey.com/short/j29pqc - 1 ea., U4 ATMEGA32U4-AU, IC MCU 8BIT 32KB FLASH 44TQFP, https://www.digikey.com/short/jb25pc…

Beetje 32U4 Blok, from the project README
From the project README

Main components on the Beetje 32U4 Blok

LP2985-33DBVRG4LMV358IDGKRNCP1117ST50T3GATMEGA32U4-AUR

Beetje 32U4 Blok bill of materials (BOM)

33 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LP2985-33DBVRG4
LP2985-3.3
Texas Instruments
U1
1
LMV358IDGKR
LMV358
Texas Instruments
U2
1
NCP1117ST50T3G
NCP1117-1.5
ON Semiconductor
U3
1
ATMEGA32U4-AUR
ATMEGA32U4-AU
Microchip Technology
U4
1
FDN340P
PMOS
ON Semiconductor
Q1
1
USB_OTG
X1
1
CSTCE16M0V53-R0
16 Mhz
Murata Electronics North America
Y1
1
Barrel_Jack
J3
1
0ZCJ0025AF2E
Polyfuse
Bel Fuse Inc.
F1
2
VCUG080050L1DP
Varistor
AVX Corporation
RV1, RV2
1
B3S-1002
RESET
Omron Electronics Inc-EMC Div
SW1
1
Arduino_Leonardo_Shield
XA1
1
PWR
D1
1
TX
D2
1
RX
D3
1
D13
D4
2
CL21A105KAFNNNE
1uF
Samsung Electro-Mechanics
C1, C5
1
885012007030
22nF
Wurth Electronics Inc.
C2
3
GRM319R6YA106KA12D
10uF
Murata Electronics North America
C3, C6, C7
1
CC0805KRX7R8BB104
0.1uF
Yageo
C4
Show 5 more
QtyPartRefs
2
ERJ-6GEYJ102V
1K
Panasonic Electronic Components
R1, R4
2
1K
R2, R3
2
ERJ-6GEYJ103V
10K
Panasonic Electronic Components
R5, R8
2
ESR10EZPJ220
22
Rohm Semiconductor
R6, R7
1
CRGCQ0603J1M0
1M
TE Connectivity Passive Product
R9

Beetje 32U4 Blok design files

The KiCad project lives in the aspro648/Leonardo repository on GitHub; these links point at the commit this page was built from.

Beetje 32U4 Blok: common questions

What microcontroller does the Beetje 32U4 Blok use?

The Beetje 32U4 Blok is built around the ATMEGA32U4-AUR, from the AVR/Arduino family.

How big is the Beetje 32U4 Blok PCB?

The Beetje 32U4 Blok measures 68.6 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Beetje 32U4 Blok?

33 components, from 25 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 Beetje 32U4 Blok design files?

From the aspro648/Leonardo repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Beetje 32U4 Blok design in my own project?

The repository has no license, so all rights stay with aspro648. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Beetje 32U4 Blok 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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