HardLabs

Rolltech

kajgm·rolltech·PCB/v1/v1.kicad_pcb

Rolltech PCB layout, top view — open source AVR/Arduino board by kajgm
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About the Rolltech PCB

Rolltech is an open source AVR/Arduino PCB design by kajgm, published on GitHub. It is a 2-layer board measuring 100 × 49 mm, with 11 components from 8 distinct parts.

Its main chip is the ARDUINO_NANO, from the AVR/Arduino family. Other key parts include the NRF24L01_Breakout and COM-09032. By type, the board carries 4 connectors, 2 ICs, 2 diodes and 2 resistors.

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

From the project

SFU Engineering Capstone Project

Roll Technology presents Chairable, a revolutionary product designed to explore the immature field of spherical wheel technology.

- Chairable utilizes a spherical wheel design for tight maneuvering and a space-efficient footprint - Leverages an adjustable clamping mechanisim to enable modular attachment to a variety of office chairs - A large 7000mAh lithium polymer battery and a powerful 2200W motor provide the ability to move a 125kg load at a 2.5m/s pace - Uses a carefully crafted mechanical design implemented with machined steel and custom 3D printed elements - A safe and robust…

Rolltech, from the project README
From the project README

Main components on the Rolltech

NRF24L01_BreakoutCOM-09032

Rolltech bill of materials (BOM)

11 components, 8 distinct parts.

QtyPartRefs
1
NRF24L01_Breakout
U1
1
COM-09032
U2
1
Conn_01x05
J1
1
Conn_01x03
J2
2
Conn_01x01
J3, J4
1
ARDUINO_NANO
TB1
2
LED_BGAR
D1, D2
2
R
R1, R2

Rolltech design files

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

Rolltech: common questions

What microcontroller does the Rolltech use?

The Rolltech is built around the ARDUINO_NANO, from the AVR/Arduino family.

How big is the Rolltech PCB?

The Rolltech measures 100 × 49 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rolltech?

11 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rolltech design files?

From the kajgm/rolltech repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Rolltech design in my own project?

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

Can I test firmware for the Rolltech 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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