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CatWANGrrrove

ElectronicCats·CatWANGrrrove

CatWANGrrrove PCB layout, top view — open source AVR/Arduino board by ElectronicCats

About the CatWANGrrrove PCB

CatWANGrrrove is an open source AVR/Arduino PCB design by ElectronicCats, published on GitHub under the MIT license. It is a 2-layer board measuring 40 × 50 mm, with 41 components from 31 distinct parts.

Its main chip is the ATMEGA32U4-AU, from the AVR/Arduino family. Other key parts include the AP2112, MCP73831T-2ATI/OT and ANT. By type, the board carries 13 resistors, 9 capacitors, 8 connectors, 5 diodes, 3 ICs and 1 module.

It belongs with the rf & radio designs in this gallery.

From the project

Board ATMEGA32u4 with LoRa and Connectors Grove

Electronic Cats invests time and resources providing this open source design, please support Electronic Cats and open-source hardware by purchasing products from Electronic Cats!

Firmware released under an GNU AGPL v3.0 license. See the LICENSE file for more information.

Hardware released under an CERN Open Hardware Licence v1.2. See the LICENSE_HARDWARE file for more information.

Main components on the CatWANGrrrove

AP2112MCP73831T-2ATI/OTATMEGA32U4-AUANT

CatWANGrrrove bill of materials (BOM)

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

QtyPartRefs
1
AP2112
U1
1
MCP73831T-2ATI/OT
U2
1
ATMEGA32U4-AU
ATmega32U4-AU
U3
1
ANT
A1
1
8MHZ
8Mhz
Y1
1
PICKIT PROGRAMMER
P1
1
ICSP
P2
1
USB_A
P3
1
Battery
P4
1
A0
P5
1
D9
P6
1
I2C
P7
1
A2
P8
1
RESET
SW1
1
MBR120
D1
1
TEST
D2
1
CHG
D3
1
DONE
D4
1
LED
D5
3
10UF
10uF
C1, C2, C6
Show 11 more
QtyPartRefs
2
1UF
1uF
C3, C7
2
0.1UF
0.1uF
C4, C5
2
22PF
22pF
C8, C9
1
100R
R1
1
100K
R2
3
10K
R3, R7, R8
2
330R
R4, R5
1
330
R6
2
22R
R9, R10
2
4.7K
R11, R12
1
RN2903
RN2903

CatWANGrrrove design files

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

CatWANGrrrove: common questions

What microcontroller does the CatWANGrrrove use?

The CatWANGrrrove is built around the ATMEGA32U4-AU, from the AVR/Arduino family.

How big is the CatWANGrrrove PCB?

The CatWANGrrrove measures 40 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CatWANGrrrove?

41 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 CatWANGrrrove design files?

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

Can I use the CatWANGrrrove design in my own project?

Yes, under the terms of its MIT license, which ElectronicCats chose for the repository.

Can I test firmware for the CatWANGrrrove 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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