HardLabs

MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII

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

MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII PCB layout, top view — open source board by MorseKOB

About the MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII PCB

MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII 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 72 components from 50 distinct parts.

Other key parts include the LM393DR. By type, the board carries 15 resistors, 12 diodes, 10 capacitors, 9 jumpers, 6 connectors and 5 test points.

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 / RPi / USB - Key/Paddle&Sounder Interface MkIII

LM393DR

MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII bill of materials (BOM)

72 components, 50 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM393DR
FTDI-LC231X
Texas Instruments
U1
1
LM393DR
LM393ADR
Texas Instruments
U4
1
G01N20LE
Q1
1
MMBT3904
2N3904
Q2
1
2N3904
Q3
1
MuKOB IF
J1
1
LOOP PWR
J2
1
KEY-PADDLE
J3
1
COMM-DCE-10
J4
1
RPI-GPIO40
RPi-GPIO40
J5
1
I2C Disp
J6
2
KeyJack-NP
JP1, JP9
1
KEY-IN
JP2
1
DASH-IN
JP3
1
SNDR
JP4
1
DASH-
JP5
1
DOT-
JP6
1
3V3
JP7
1
5V-USB
JP8
1
KS-LOOP
OP1
Show 30 more
QtyPartRefs
1
LoopDbgPwr
OPa1
1
Buzzer
SNDR1
1
Loop Cur Limit
ST1
1
SNDR/KOB
ST2
1
CLOSER
SW1
1
KEY/DOT
SW2
1
DASH
SW3
1
SW_DIP_X02
SW_DIP_x02
SW4
1
LP2
TP1
1
SE
TP2
1
RV
TP3
1
LS
TP4
1
KS-
TP5
1
SNDR
LED1
1
HDS20M
1N4007
D1
1
MBR0560LT1G
1N4007
D2
1
1N4007
D3
5
1N4148
D4, D5, D6, D7, D8
1
MBR0560LT1G
D9
3
MBR0560LT1G
D10, D11, D12
1
10UF
10uf
C1
7
0.1U
0.1u
C2, C3, C4, C5, C6, C7, C8
2
1.0U
1.0u
C9, C10
5
20K
20k
R1, R9, R12, R13, R15
2
1k
R2, R3
1
330
R4
1
47
R5
2
10K
10k
R6, R7
2
4.7K
4.7k
R8, R14
2
47K
47k
R10, R11

MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII 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 / RPi / USB - Key/Paddle&Sounder Interface MkIII: common questions

How big is the MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII PCB?

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

How many components are on the MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII?

72 components, from 50 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 / RPi / USB - Key/Paddle&Sounder Interface MkIII 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 / RPi / USB - Key/Paddle&Sounder Interface MkIII design in my own project?

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

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