HardLabs

Timer

PurkkaKoodari·ktane-hw·hardware/timer/timer.kicad_pcb

Timer PCB layout, top view — open source AVR/Arduino board by PurkkaKoodari

About the Timer PCB

Timer is an open source AVR/Arduino PCB design by PurkkaKoodari, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 100 mm, with 18 components from 11 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the WAVGAT_CAN and HT16K33. By type, the board carries 9 resistors, 3 diodes, 2 ICs, 2 connectors, 1 module and 1 capacitor.

From the project

Fully playable hardware implementation of Keep Talking and Nobody Explodes. Mirror of https://gitlab.com/PurkkaKoodari/ktane-hw

This project is a hardware reimplementation of the game [Keep Talking and Nobody Explodes][ktane]. The game runs fully on the physical device and is controlled using a web interface over Wi-Fi. The project will be documented in this repository – expect the links below to be broken for the near future.

The hardware is built around a Raspberry Pi Zero W, which runs the main controller software, attached to a backplane that provides power, connectivity and audio. The game's modules are built as independent devices, usually based on an Arduino Nano, which connect to the backplane using…

Main components on the Timer

WAVGAT_CANHT16K33Arduino_Nano_v3.x

Timer bill of materials (BOM)

18 components, 11 distinct parts.

QtyPartRefs
1
WAVGAT_CAN
U1
1
HT16K33
U2
1
Arduino_Nano_v3.x
A1
1
RJ45_Shielded
J1
1
Conn_01x03_Female
J2
2
LED_Small
D1, D2
1
8402BS
D3
1
0.1uF
C1
2
560R
R1, R2
2
4K7
R3, R4
5
100
R5, R6, R7, R8, R9

Timer design files

The KiCad project lives in the PurkkaKoodari/ktane-hw repository on GitHub; these links point at the commit this page was built from.

Timer: common questions

What microcontroller does the Timer use?

The Timer is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Timer PCB?

The Timer measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Timer?

18 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Timer design files?

From the PurkkaKoodari/ktane-hw repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Timer design in my own project?

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

Can I test firmware for the Timer 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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