HardLabs

Infra speed.2

KaburaJ·Dynamic-Speed-Governor·DEVELOPMENT/KICAD FILES/SPEED GOVERNOR (With infrared concept)/infra speed.2.kicad_pcb

Infra speed.2 PCB layout, top view — open source AVR/Arduino board by KaburaJ

About the Infra speed.2 PCB

Infra speed.2 is an open source AVR/Arduino PCB design by KaburaJ, published on GitHub. It is a 2-layer board measuring 54.6 × 53.3 mm, with 17 components from 13 distinct parts.

Its main chip is the ATmega328-P, from the AVR/Arduino family. Other key parts include the L7805 and TSDP341xx. By type, the board carries 3 ICs, 3 connectors, 3 capacitors, 3 resistors, 2 switches and 1 crystal.

It belongs with the rf & radio and displays & leds designs in this gallery.

From the project

This repository contains the workflow of a dynamic speed governor. Designed to change as per a location's speed limit, this dynamic speed governor is highly applicable in school zones, hospitals and black spots among others.

This is a small PCB sub-assembly capable of transmitting and modulating a radio wave to carry data.

Converts parallel inputs into serial output. It encodes the 12 bit parallel data into serial for transmission through an RF transmitter. These 12 bit are divided into 8 address bit and 4 data bits.

It is a simple switch mechanism to control the speed limits aspects of the project. The comprise of the 20, 40, 60 and 80 km/hr speed limits.

Infra speed.2, from the project README
From the project README

Main components on the Infra speed.2

L7805TSDP341xxATmega328-P

Infra speed.2 bill of materials (BOM)

17 components, 13 distinct parts.

QtyPartRefs
1
L7805
U1
1
TSDP341xx
U2
1
ATmega328-P
U4
1
Crystal
Y1
1
Conn_01x04_Female
J1
1
Conn_01x05_Female
J2
1
Barrel_Jack
J3
1
Buzzer
BZ1
2
SW_Push
SW1, SW2
1
LED
D1
3
22n
C1, C2, C3
1
10k
R1
2
100k
R2, R3

Infra speed.2 design files

The KiCad project lives in the KaburaJ/Dynamic-Speed-Governor repository on GitHub; these links point at the commit this page was built from.

Infra speed.2: common questions

What microcontroller does the Infra speed.2 use?

The Infra speed.2 is built around the ATmega328-P, from the AVR/Arduino family.

How big is the Infra speed.2 PCB?

The Infra speed.2 measures 54.6 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Infra speed.2?

17 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Infra speed.2 design files?

From the KaburaJ/Dynamic-Speed-Governor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Infra speed.2 design in my own project?

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

Can I test firmware for the Infra speed.2 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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