HardLabs

Buzzer

plusvic·simplebus2-intercom·buzzer/pcb/buzzer.kicad_pcb

Buzzer PCB layout, top view — open source AVR/Arduino board by plusvic

About the Buzzer PCB

Buzzer is an open source AVR/Arduino PCB design by plusvic, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 45 × 39 mm, with 3 components from 3 distinct parts.

Its main chip is the ATtiny13-20P, from the AVR/Arduino family.

From the project

General description of the Simplebus2 protocol used by some Comelit's intercoms. Hardware for retransmitting Simplebus2 messages over UART.

A recent version of the nightly Rust compiler. Anything including or greater than rustc 1.63.0-nightly (fee3a459d 2022-06-05) can be used. The rust-src rustup component - $ rustup component add rust-src AVR-GCC on the system for linking AVR-Libc on the system for support libraries * minipro (https://gitlab.com/DavidGriffith/minipro)

Main components on the Buzzer

ATtiny13-20P

Buzzer bill of materials (BOM)

3 components, 3 distinct parts.

QtyPartRefs
1
ATtiny13-20P
U1
1
Conn_01x05_Female
HC-12
1
IRM-03-3.3
PS1

Buzzer design files

The KiCad project lives in the plusvic/simplebus2-intercom repository on GitHub; these links point at the commit this page was built from.

Buzzer: common questions

What microcontroller does the Buzzer use?

The Buzzer is built around the ATtiny13-20P, from the AVR/Arduino family.

How big is the Buzzer PCB?

The Buzzer measures 45 × 39 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Buzzer?

3 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the Buzzer design files?

From the plusvic/simplebus2-intercom repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Buzzer design in my own project?

Yes, under the terms of its CC0-1.0 license, which plusvic chose for the repository.

Can I test firmware for the Buzzer 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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