HardLabs

ML0

brucemack·microlink·hw/ML0/ML0.kicad_pcb

ML0 PCB layout, top view — open source board by brucemack
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About the ML0 PCB

ML0 is an open source PCB design by brucemack, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 59 mm, with 60 components from 49 distinct parts.

Other key parts include the TLV9164PWR, LTV-356T, LM1117MP-3.3, MCP4725A0T-E/CH and LMV324. By type, the board carries 20 capacitors, 20 resistors, 6 ICs, 5 connectors, 2 jumpers and 2 transformers.

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

From the project

An open source EchoLink/AllStarLink implementation that runs on a simple microcontroller.

Is it possible to build a full EchoLink® node using a $6 microcontroller? I'm not completely sure, but let's find out. The goal of this project is to create the smallest, cheapest way to put a radio onto the EchoLink network. If you are new to the world of EchoLink please see the official website for complete information. EchoLink is a peer-to-peer VoIP (voice over IP) network used to link amateur radio stations across the Internet.

ML0, from the project README
From the project README

Main components on the ML0

TLV9164PWRLTV-356TLM1117MP-3.3MCP4725A0T-E/CHLMV324

ML0 bill of materials (BOM)

60 components, 49 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLV9164PWR
LMV321
U1
2
LTV-356T
U2, U5
1
LM1117MP-3.3
NCP1117-3.3_SOT223
U3
1
MCP4725A0T-E/CH
MCP4725xxx-xCH
U4
1
LMV324
U9
1
DE9_RECEPTACLE
Conn_01x06
J1
1
PJ-102AH
12V Supply
J2
1
CONN_01X20
Digital Connector
J3
1
CONN_01X02
ADC Connector
J4
1
Conn_01x03
J5
1
DAC Address Control
JP1
1
SolderJumper_2_Open
JP2
1
50K
10k
RV1
2
10k
RV3, RV4
2
Transformer_1P_1S
T1, T2
1
C84256
LED
D1
1
BAT54S
D2
1
22U
100u
C1
1
22U
0.1u
C2
2
22N
22n
C3, C26
Show 29 more
QtyPartRefs
2
10N
10n
C4, C27
1
47U
0.1u
C5
1
0.1U
100u
C6
3
47U
10u
C7, C8, C9
1
C22320
47u (Optional DC Block)
C10
1
47U
1u
C17
2
0.1U
0.1u
C18, C21
1
47U
47u
C19
1
47U
100u
C20
1
NC
C22
1
47u
C24
1
0.1u
C29
2
1.5K
1.5k
R1, R15
1
2.7K
2.7k
R2
1
C17477
1k
R3
1
620
200
R4
2
2.2K
10k
R5, R6
1
220
R7
1
220
0R
R8
1
1k
R9
1
C17629
270k
R10
1
C17589
270k
R11
2
2.2K
2.2k
R12, R13
1
2.2k
R14
1
2.7K
22k
R16
1
100
2.7k
R17
1
C17477
0R
R18
1
220
1k
R19
1
100
570
R20

ML0 design files

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

ML0: common questions

How big is the ML0 PCB?

The ML0 measures 100 × 59 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ML0?

60 components, from 49 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 ML0 design files?

From the brucemack/microlink 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 ML0 design in my own project?

Yes, under the terms of its GPL-3.0 license, which brucemack chose for the repository.

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