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MuKOB-Key & Sounder Interface, MKOB4 USB Interface

MorseKOB·MuKOB·hw/MK-KS-MkII.kicad_pcb

MuKOB-Key & Sounder Interface, MKOB4 USB Interface PCB layout, top view — open source board by MorseKOB

About the MuKOB-Key & Sounder Interface, MKOB4 USB Interface PCB

MuKOB-Key & Sounder Interface, MKOB4 USB Interface is an open source PCB design by MorseKOB, published on GitHub under the MIT license. It is a 2-layer board measuring 104.1 × 78.7 mm, with 48 components from 42 distinct parts.

Other key parts include the LM393DR. By type, the board carries 8 resistors, 7 diodes, 7 capacitors, 5 jumpers, 5 test points and 4 connectors.

From the project

MuKOB (μKOB) - MorseKOB for a microcontroller-based platform.

Raspberry Pi Pico W (RP2040 CPU) based device with a built-in display and a terminal interface. Uses built-in wifi to connect to the MorseKOB Server.

It interfaces to a KOB, Key + Sounder, Key + Tone, Paddle + Tone, etc. to provide Morse input and output. The device can operate completely stand-alone (using the display-touchscreen) or it can connect to a VT-220 terminal (or emulator like Putty) to provide a larger interface and allow keyboard input.

Main components on the MuKOB-Key & Sounder Interface, MKOB4 USB Interface

LM393DR

MuKOB-Key & Sounder Interface, MKOB4 USB Interface bill of materials (BOM)

48 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM393DR
FT234XF_USB_UART_Module
Texas Instruments
U1
1
LM393DR
LM393ADR
Texas Instruments
U4
1
G01N20LE
Q3
1
2N3904
Q4
1
LOOP PWR
J2
1
UART Data
J3
1
COMM-DCE-10
MuKOB IF
J4
1
RPI-GPIO40
KEY-PADDLE
J5
1
3V3-USB
JP1
1
KEY-IN
JP2
1
Key Jack NP
JP3
1
CB0-Dash
JP4
1
UART-LB
JP5
1
LoopDbgPwr
OPa1
1
SNDR/KOB
ST1
1
LOOP RES
ST2
1
KEY
ST3
1
CLOSER
SW1
1
KEY/DOT
SW2
1
DASH
SW3
Show 22 more
QtyPartRefs
1
LP2
TP1
1
SE
TP2
1
RV
TP3
1
LS
TP4
1
KS-
TP5
1
SNDR
LED1
1
HDS20M
MBR0560LT1G
D1
1
MBR0560LT1G
1N4148
D2
1
1N4007
1N4148
D3
1
1N4148
D4
1
1N4148
D5
2
1N4148
MBR0560LT1G
D7, D8
1
0.1U
10uf
C3
5
0.1U
0.1u
C4, C5, C6, C7, C8
1
1.0U
0.1u
C9
1
20K
3.3k
R1
2
20k
R2, R5
1
10K
20k
R6
1
10K
100
R7
1
4.7K
20k
R8
1
20K
DNP
R9
1
47K
1k
R10

MuKOB-Key & Sounder Interface, MKOB4 USB Interface design files

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

MuKOB-Key & Sounder Interface, MKOB4 USB Interface: common questions

How big is the MuKOB-Key & Sounder Interface, MKOB4 USB Interface PCB?

The MuKOB-Key & Sounder Interface, MKOB4 USB Interface measures 104.1 × 78.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MuKOB-Key & Sounder Interface, MKOB4 USB Interface?

48 components, from 42 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 MuKOB-Key & Sounder Interface, MKOB4 USB Interface design files?

From the MorseKOB/MuKOB 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 MuKOB-Key & Sounder Interface, MKOB4 USB Interface design in my own project?

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

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