HardLabs

Minimus-Prime

HologramEducation·Minimus-Prime·hw/KiCad/minimus-prime.kicad_pcb

Minimus-Prime PCB layout, top view — open source NXP board by HologramEducation

About the Minimus-Prime PCB

Minimus-Prime is an open source NXP PCB design by HologramEducation, published on GitHub under the CC-BY-4.0 license. It is a board measuring 25.4 × 33 mm, with 61 components from 27 distinct parts.

Its main chip is the MKL17Z256VFM4, from the NXP family. Other key parts include the TLV700, eSIM, SARA-U260 and SIM-CARD-HOLDER. By type, the board carries 24 resistors, 18 capacitors, 7 diodes, 5 ICs, 3 transistors and 1 crystal.

From the project

An experiment to shrink cellular connectivity

This is an experiment to shrink the logic and support circuitry around a cellular modem to the bare minimum and offer them as a surface mount solderable board. This design will be tested as a lightweight hardware device to connect to Hologram services.

This device is meant to work with uBlox cellular modems and the Hologram Global SIM card. To get a free SIM and 1 MB of data per month on the cellular plan, check out the Developer Plan

Minimus-Prime, from the project README
From the project README

Main components on the Minimus-Prime

TLV700eSIMSARA-U260SIM-CARD-HOLDERMKL17Z256VFM4

Minimus-Prime bill of materials (BOM)

61 components, 27 distinct parts.

QtyPartRefs
1
TLV700
U1
1
eSIM
U2
1
SARA-U260
U3
1
SIM-CARD-HOLDER
U4
1
MKL17Z256VFM4
U5
3
CMUDM7004
Q1, Q5, Q6
1
ABS5
Y1
1
CONN_01X23
J1
1
A-1JB
ANT1
2
Red LED
D1, D14
1
Blue LED
D9
4
PESD0402
D10, D11, D12, D13
1
FB
L3
3
100n
C1, C9, C24
2
C
C2, C7
2
22U
C3, C22
2
22U
C4, C12
1
NOPE
C15
1
0.1U
C16
4
47p
C17, C18, C19, C20
Show 7 more
QtyPartRefs
1
10n
C23
1
56p
C25
1
15p
C26
11
0
R1, R2, R4, R10, R11, R23, R24, R26 +3
4
100K
R3, R21, R22, R25
3
3K
R5, R20, R49
6
10K
R6, R7, R8, R14, R42, R43

Minimus-Prime design files

The KiCad project lives in the HologramEducation/Minimus-Prime repository on GitHub; these links point at the commit this page was built from.

Minimus-Prime: common questions

What microcontroller does the Minimus-Prime use?

The Minimus-Prime is built around the MKL17Z256VFM4, from the NXP family.

How big is the Minimus-Prime PCB?

The Minimus-Prime measures 25.4 × 33 mm and is 1.6 mm thick.

How many components are on the Minimus-Prime?

61 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Minimus-Prime design files?

From the HologramEducation/Minimus-Prime repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Minimus-Prime design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which HologramEducation chose for the repository.

Can I test firmware for the Minimus-Prime without the hardware?

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

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