HardLabs

Nami

jemdiggity·nami·hardware/nami-rev-a/nami.kicad_pcb

Nami PCB layout, top view — open source Nordic nRF board by jemdiggity

About the Nami PCB

Nami is an open source Nordic nRF PCB design by jemdiggity, published on GitHub. It is a 2-layer board measuring 95 × 75 mm, with 54 components from 38 distinct parts.

Its main chip is the MDBT50Q-1MV2, from the Nordic nRF family. Other key parts include the TPS63900DSKR, OPA2333AID and W25Q128JVSIQ. By type, the board carries 23 resistors, 17 capacitors, 4 ICs, 4 connectors, 2 switches and 2 diodes.

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

From the project

Nami: noncontact AC current sensing hardware with Thread connectivity

An editable KiCad 10 design for evaluating the SCT006 sensing chain and Thread/BLE operation. This is an unreleased bench prototype, not an outlet-installation or fabrication release. The board is 95 × 75 mm, deliberately larger than the eventual device. No physical hardware, firmware, battery-life test or enclosure validation has been completed.

Open nami.kicadpro in KiCad. The five-sheet schematic is nami.kicadsch; the routed two-layer PCB is nami.kicadpcb`. The parts are native editable KiCad symbols and footprints, not an image imported into the editor.

Main components on the Nami

TPS63900DSKROPA2333AIDMDBT50Q-1MV2W25Q128JVSIQ

Nami bill of materials (BOM)

54 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS63900DSKR
U1
1
OPA2333AID
U2
1
MDBT50Q-1MV2
U3
1
W25Q128JVSIQ
U4
1
ABS07-32.768KHZ-7-T
32.768kHz CL=7pF
Y1
1
CT HARNESS
J1
1
BATTERY / BENCH 2.0-3.3V
J2
1
SWD 1.27mm
J3
1
ANALOG DEBUG
J4
1
PAIR
SW1
1
RESET
SW2
1
BAV199,215
BAV199
D1
1
GREEN
D2
1
XAL4020-222MEC
2.2uH >=2A
L1
1
GRM32ER60J107ME20L
100u 6.3V X5R
C1
3
10u 10V X7R
C2, C11, C16
1
47u 6.3V X5R
C3
1
100n 10V X7R
C4
1
1n C0G
C5
2
1u X7R
C6, C7
Show 18 more
QtyPartRefs
1
22n C0G
C8
1
47n C0G
C9
4
100n X7R
C10, C12, C15, C17
2
9p C0G
C13, C14
1
0R / AMMETER
R1
1
0R
R2
1
1.87k 1%
R3
1
13.3k 1%
R4
3
0R / CURRENT LINK
R5, R6, R7
3
1k
R8, R14, R15
2
1M 0.1%
R9, R10
1
100R
R11
1
10k 0.1%
R12
1
309k 0.1%
R13
5
100K
100k
R16, R17, R18, R19, R20
1
4.7K
4.7k
R21
1
2M 1%
R22
1
1M 1%
R23

Nami design files

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

Nami: common questions

What microcontroller does the Nami use?

The Nami is built around the MDBT50Q-1MV2, from the Nordic nRF family.

How big is the Nami PCB?

The Nami measures 95 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nami?

54 components, from 38 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 Nami design files?

From the jemdiggity/nami 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 Nami design in my own project?

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

Can I test firmware for the Nami 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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