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Arduino dolly

hollop90·arduino-dolly

Arduino dolly PCB layout, top view — open source AVR/Arduino board by hollop90

About the Arduino dolly PCB

Arduino dolly is an open source AVR/Arduino PCB design by hollop90, published on GitHub. It is a 4-layer board measuring 26.8 × 53 mm, with 37 components from 18 distinct parts.

Its main chip is the C14877, from the AVR/Arduino family. Other key parts include the C71136, C14289, C6568 and USBLC6-2SC6. By type, the board carries 14 capacitors, 7 resistors, 5 ICs, 4 connectors, 4 diodes and 2 switches.

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

From the project

A clone of the arduino nano

A clone of the Arduino Nano, but a little different.

- [X] calculate crystal values - [X] calculate load capacitors - 12pf - [X] inspect layout - seems fine - [X] Research USB TVS diodes - [X] the ones i'm using are probably not appropriate - yeah they are for RS485. FIXED - [X] look into what phils lab uses or the CATS board - [X] Look into controlled impedance traces. NOT NEEDED - [X] calculate for the USB port. NOT DONE - [X] Double check USB C layout - [X] ground the shilding - [X] series termination reistors? NAH - [X] double check vreg capacitors. NEXT TIME USE 10u ON BOTH SIDES - [X]…

Arduino dolly, from the project README
From the project README

Main components on the Arduino dolly

C71136C14289C14877C6568USBLC6-2SC6

Arduino dolly bill of materials (BOM)

37 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C71136
78L05G-AB3-R
U1
1
C14289
HT7533-1
U2
1
C14877
ATmega328P-A
U3
1
C6568
CP2102-GMR
U4
1
USBLC6-2SC6
U5
1
C13738
16 MHz
Y1
2
1x15 Pin Header
J1, J3
1
C7527694
USB_C_Receptacle_USB2.0_16P
J2
1
2x3 Pin Header
J4
2
C318884
Push Button
SW1, SW2
1
C191023
1N5819WS
D1
2
C2286
RED
D2, D4
1
C2843785
WS2812B
D3
2
C19702
10u
C1, C3
10
C14663
100n
C2, C4, C5, C6, C7, C10, C11, C12 +2
2
C38523
12p
C8, C9
5
C21190
1k
R1, R2, R7, R8, R9
2
C23186
5k1
R3, R4

Arduino dolly design files

The KiCad project lives in the hollop90/arduino-dolly repository on GitHub; these links point at the commit this page was built from.

Arduino dolly: common questions

What microcontroller does the Arduino dolly use?

The Arduino dolly is built around the C14877, from the AVR/Arduino family.

How big is the Arduino dolly PCB?

The Arduino dolly measures 26.8 × 53 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Arduino dolly?

37 components, from 18 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 Arduino dolly design files?

From the hollop90/arduino-dolly 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 Arduino dolly design in my own project?

The repository has no license, so all rights stay with hollop90. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Arduino dolly 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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