HardLabs

Chaac Radio

alvarop·chaac·hw/chaac_radio/chaac_radio.kicad_pcb

Chaac Radio PCB layout, top view — open source Nordic nRF board by alvarop

About the Chaac Radio PCB

Chaac Radio is an open source Nordic nRF PCB design by alvarop, published on GitHub under the MIT license. It is a 4-layer board measuring 40 × 20 mm, with 21 components from 15 distinct parts.

Its main chip is the NRF52811-QFAA, from the Nordic nRF family. By type, the board carries 11 capacitors, 4 connectors, 2 crystals, 2 inductors, 1 IC and 1 fuse.

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

From the project

This is a work in progress for a wireless weather station project.

This is a work in progress for a wireless weather station project.

Hardware - Main development board design files Firmware - Code for the microcontroller * Software - Python scripts to communicate with the weather station, log, and plot data

Main components on the Chaac Radio

NRF52811-QFAA

Chaac Radio bill of materials (BOM)

21 components, 15 distinct parts.

QtyPartRefs
1
NRF52811-QFAA
U3
1
32.768kHz
Y1
1
32MHz
Y2
2
20021321-00016C4LF
J1, J2
1
TC2030-CTX
J3
1
RP_SMA
J4
1
2450FM07A0029T
F1
1
15nH
L1
1
10uH
L2
4
12pF
C9, C10, C18, C19
3
0.1uF
C11, C13, C15
1
4.7uF
C12
1
1uF
C14
1
100pF
C16
1
DNP
C17

Chaac Radio design files

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

Chaac Radio: common questions

What microcontroller does the Chaac Radio use?

The Chaac Radio is built around the NRF52811-QFAA, from the Nordic nRF family.

How big is the Chaac Radio PCB?

The Chaac Radio measures 40 × 20 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Chaac Radio?

21 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Chaac Radio design files?

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

Can I use the Chaac Radio design in my own project?

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

Can I test firmware for the Chaac Radio without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.

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