HardLabs

Ardubell

dh2pp·ardubell·PCB/arduBell.kicad_pcb

Ardubell PCB layout, top view — open source AVR/Arduino board by dh2pp

About the Ardubell PCB

Ardubell is an open source AVR/Arduino PCB design by dh2pp, published on GitHub. It is a 2-layer board measuring 60 × 60 mm, with 45 components from 23 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the NSL-32. By type, the board carries 14 resistors, 10 capacitors, 6 connectors, 5 diodes, 3 switches and 2 ICs.

From the project

Morse-like front door opener for multi party houses or garden doors

This project is for people who live in a flat and don't want to carry along their keys when they just leave home for shopping etc. You can simply use the Door bell button and type a pattern (compare Morse Code) and - provided that you have a remote unlock button from inside your flat - get the door unlocked automatically.

Code is working, but not nice :/ Hope to find some time to make it better (interrupt waking up from sleep, ...)

Ardubell, from the project README
From the project README

Main components on the Ardubell

ATMEGA328P-AUNSL-32

Ardubell bill of materials (BOM)

45 components, 23 distinct parts.

QtyPartRefs
1
ATMEGA328P-AU
U1
1
NSL-32
U2
2
BC548BTA
Q1, Q2
1
Crystal
Y1
1
AVR-ISP-6
J1
1
UART
J2
1
VCC
J3
1
BELL
J4
1
RELAY1
J5
1
RELAY2
J6
2
HJR-4102
RLY1, RLY2
1
GPTS203211B
S1
2
SW_Push
SW1, SW2
2
D_Small
D1, D2
3
LED
D3, D4, D5
5
100n
C1, C2, C5, C7, C8
1
1u
C3
2
4.7u
C4, C6
2
10p
C9, C10
9
1K
R1, R2, R3, R8, R9, R10, R11, R12 +1
Show 3 more
QtyPartRefs
1
R_Variable
R4
3
100R
R5, R6, R7
1
270R
R14

Ardubell design files

The KiCad project lives in the dh2pp/ardubell repository on GitHub; these links point at the commit this page was built from.

Ardubell: common questions

What microcontroller does the Ardubell use?

The Ardubell is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Ardubell PCB?

The Ardubell measures 60 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ardubell?

45 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ardubell design files?

From the dh2pp/ardubell repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Ardubell design in my own project?

The repository has no license, so all rights stay with dh2pp. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Ardubell 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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