HardLabs

Rr dev board

frep·kicad·projects/RadxaArduinoShield/rr_dev_board.kicad_pcb

Rr dev board layout, top view — open source AVR/Arduino board by frep

About the Rr dev board

Rr dev board is an open source AVR/Arduino PCB design by frep, published on GitHub. It is a 2-layer board measuring 100 × 80 mm, with 100 components from 34 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the OPAMP-DUALU, MC14551, FT232RL, AP7333 and MCP23017. By type, the board carries 31 resistors, 16 jumpers, 15 diodes, 14 capacitors, 9 connectors and 6 ICs.

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

From the project

workspace for kicad projects

Radxa Arduino Shield ==================== description is following soon...

Main components on the Rr dev board

OPAMP-DUALUMC14551FT232RLATMEGA32U4AP7333MCP23017

Rr dev board bill of materials (BOM)

100 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OPAMP-DUALU
IC1
1
MC14551
U1
1
FT232RL
U2
1
ATMEGA32U4
U3
1
AP7333
U4
1
MCP23017
U5
4
MOSFET-N
Q1, Q2, Q5, Q6
2
MOSFET-P
Q3, Q4
1
16MHz
X1
1
USB-MINI-B-Vert
CON1
2
CONN_20X2
P1, P6
3
CONN_4
P7, P11, P12
2
CONN_24
P8, P9
1
CONN_3X2
P10
1
FUSE
F1
15
JUMPER
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 +7
1
JUMPER3
JP13
8
LED
D1, D2, D3, D4, D5, D6, D7, D8
3
DIODE
D9, D10, D11
1
RX
D12
Show 14 more
QtyPartRefs
1
TX
D13
1
Pin13
D14
1
ON
D15
1
Ferrit Bead
L1
8
100nF
C1, C3, C5, C7, C8, C9, C13, C14
1
4.7uF
C2
2
18pF
C4, C6
3
1uF
C10, C11, C12
12
10K
R1, R2, R11, R12, R13, R14, R15, R26 +4
8
100
R3, R4, R5, R6, R7, R8, R9, R10
2
1M
R16, R19
2
33
R17, R18
3
4K7
R20, R21, R22
4
1K
R23, R24, R25, R27

Rr dev board design files

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

Rr dev board: common questions

What microcontroller does the Rr dev board use?

The Rr dev board is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Rr dev board?

The Rr dev board measures 100 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rr dev board?

100 components, from 34 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 Rr dev board design files?

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

Can I use the Rr dev board design in my own project?

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

Can I test firmware for the Rr dev board 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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