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Wristband discreto

forg3·NibasRockBar·hardware/kicad/wristband_discreto/wristband_discreto.kicad_pcb

Wristband discreto PCB layout, top view — open source Nordic nRF board by forg3
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About the Wristband discreto PCB

Wristband discreto is an open source Nordic nRF PCB design by forg3, published on GitHub. It is a 2-layer board measuring 32 × 32 mm, with 19 components from 10 distinct parts.

Its main chip is the QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm, from the Nordic nRF family. By type, the board carries 10 capacitors, 3 inductors, 1 IC, 1 crystal, 1 antenna and 1 battery holder.

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

From the project

Sistema de pulseira eletrônica (NFC + BLE) para identificação de clientes e localização indoor no salão, integrado ao sistema de caixa Deli. Atendimento continua 100% humano — garçom tira o pedido, equipe serve bebidas e a cozinha prepara os pratos. A pulseira só identifica o cli

Sistema de pulseira eletrônica (NFC + BLE) para identificação de clientes e localização indoor no salão, integrado ao sistema de caixa Deli. Atendimento continua 100% humano — garçom tira o pedido, equipe serve bebidas e a cozinha prepara os pratos. A pulseira só identifica o cliente e ajuda a equipe a localizá-lo mais rápido.

1. Check-in — cliente recebe uma pulseira livre; o sistema abre a comanda no Deli. 2. Pedido — garçom lê a pulseira (NFC) e lança o pedido na comanda certa, em qualquer mesa. 3. Localização — o app do garçom mostra a área do salão onde cada comanda está (BLE). 4.…

Main components on the Wristband discreto

QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm

Wristband discreto bill of materials (BOM)

19 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm
U1
1
Crystal_SMD_2016-4Pin_2.0x1.6mm
X1
1
Johanson_2450AT18x100
ANT1
1
Keystone_1060
BT1
1
Ferrite_Shield_22mm
SHLD1
2
L_0402_1005Metric
L1, L3
1
L_0603_1608Metric
L2
8
C_0402_1005Metric
C1, C2, C3, C4, C5, C6, C7, C8
2
C_0603_1608Metric
C9, C10
1
R_0402_1005Metric
R1

Wristband discreto design files

The KiCad project lives in the forg3/NibasRockBar repository on GitHub; these links point at the commit this page was built from.

Wristband discreto: common questions

What microcontroller does the Wristband discreto use?

The Wristband discreto is built around the QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm, from the Nordic nRF family.

How big is the Wristband discreto PCB?

The Wristband discreto measures 32 × 32 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Wristband discreto?

19 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Wristband discreto design files?

From the forg3/NibasRockBar repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Wristband discreto design in my own project?

The repository has no license, so all rights stay with forg3. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Wristband discreto 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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