MuKOB Main Board
About the MuKOB Main Board
MuKOB Main Board is an open source RP2040/RP2350 PCB design by MorseKOB, published on GitHub under the MIT license. It is a 4-layer board measuring 123.2 × 125.7 mm, with 119 components from 83 distinct parts.
Its main chip is the PicoW, from the RP2040/RP2350 family. Other key parts include the FTDI-LC231X, MCP23S08-E/SO, LM393ADR, TPA2012D2RTJT and NC7WZ16P6X. By type, the board carries 27 capacitors, 25 resistors, 19 connectors, 9 switches, 6 ICs and 5 jumpers.
It belongs with the usb & debug tools designs in this gallery.
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 Main Board
MuKOB Main Board bill of materials (BOM)
119 components, 83 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FTDI-LC231X MAX3221 | TSSOP-16 | U1 |
| 1 | PicoW | RPi_PicoW_SMD_TH | U2 |
| 1 | MCP23S08-E/SO | SOIC-18W_7.5x11.6mm_P1.27mm | U3 |
| 1 | LM393ADR TLV70033_SOT23-5 | SOT-23-5 | U4 |
| 1 | TPA2012D2RTJT | QFN50P400X400X80-21N270X270 | U5 |
| 1 | NC7WZ16P6X | SOT-363_SC-70-6 | U6 |
| 1 | 2N3904 | TO-92_Inline | Q1 |
| 1 | UART0 IO01 | PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | SERIAL-COMM | CUI_SJ-2524-SMT-TRS-audio-jack | J2 |
| 1 | KEY_SND_IF | PinSocket_1x07_P2.54mm_Vertical | J3 |
| 1 | COMM-DCE-10 GPIO28 | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | RPI-GPIO40 I2C-0 | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | MicroSD-Socket w/Det | SDCard-GCT_MEM2075-00-140-01-A | J6 |
| 1 | KEY-PADDLE-1_8 KEY-PADDLE | CUI_SJ-63063B-audio-jack | J7 |
| 1 | UART1 IO89 | PinHeader_1x03_P2.54mm_Vertical | J8 |
| 1 | UI 20-FCC | Amphenol_F51L_1x20_P1.00mm_Horizontal-FFC | J9 |
| 1 | IO_EX | PinHeader_1x07_P2.54mm_Vertical | J10 |
| 1 | SPKR_L | TerminalBlock_Philmore_TB132_1x02_P5.00mm_Horizontal | J11 |
| 1 | SPKR_R | TerminalBlock_Philmore_TB132_1x02_P5.00mm_Horizontal | J12 |
| 1 | UI 20-RBN | PinHeader_2x10_P2.54mm_Vertical | J13 |
Show 63 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AUDIO | CUI_DEVICES_SJ43516_SMT-CPJ | J14 |
| 1 | SPI-0 | PinSocket_1x07_P2.54mm_Vertical | J15 |
| 1 | SPI-DISP | PinSocket_1x14_P2.54mm_Vertical | J16 |
| 1 | SW_MATRIX | PinHeader_1x05_P2.54mm_Vertical | J17 |
| 1 | UIM 20-FCC | Amphenol_F51L_1x20_P1.00mm_Horizontal-FFC | J18 |
| 1 | UIM 20-RBN | PinHeader_2x10_P2.54mm_Vertical | J19 |
| 1 | Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
| 10 | 0.1uF | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | CF1, CF2, CF3, CF4, CF5, CFA1, CFA2, CFA3 +2 |
| 1 | S0-RX | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | J7-BP | PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | AUD-SDR- | PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 2 | PWR-APWR-Bridge | PinHeader_2x02_P2.54mm_Vertical | JP-PWR-1, JP-PWR-2 |
| 1 | BZ-SPK | PinHeader_1x03_P2.54mm_Vertical | OP1 |
| 6 | OP_A-B | PinHeader_1x03_P2.54mm_Vertical | OP2, OP3, OP4, OP5, OP6, OP7 |
| 1 | IO28-ToneR | PinHeader_1x03_P2.54mm_Vertical | OP8 |
| 1 | DISP-BL-PWR | PinHeader_1x03_P2.54mm_Vertical | OP9 |
| 1 | RotEnc-SW | RotaryEncoder_Bourns_Vertical_PEC12R-3xxxF-Sxxxx | RE1 |
| 1 | RESET | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW1 |
| 1 | RE-SO | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW2 |
| 1 | UP | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW3 |
| 1 | SW_DIP_X02 LF | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW4 |
| 1 | EN | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW5 |
| 1 | RT | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW6 |
| 1 | DN | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW7 |
| 1 | RE-AO | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW8 |
| 1 | RE-BO | SW_PUSH_SMD_1P1T_NO_45x45mm-CK | SW9 |
| 1 | LP2 VOL-A | PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | VOL-B | PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | AUD-IN | PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | TONE-R | PinHeader_1x01_P2.54mm_Vertical | TP4 |
| 1 | TONE-L | PinHeader_1x01_P2.54mm_Vertical | TP5 |
| 1 | PWR | LED_SMD_SIDEVIEW_Harvatek | LED1 |
| 1 | 10UF 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 4 | 0.1U 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C5, C6 |
| 3 | 0.1U 10uF | C_0603_1608Metric | C4, C7, C8 |
| 1 | 1.0U 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 1.0U 1uF | C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C10 |
| 1 | 0.1U 1uF | C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C11 |
| 2 | 1uF | C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C12, C13 |
| 5 | 100nF | C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C14, C15, C17, C18, C20 |
| 2 | 47uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C16, C19 |
| 1 | 22uF Tant | CP_EIA-3528-15_AVX-H_Pad1.50x2.35mm_HandSolder | C21 |
| 6 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C22, C23, C24, C25, C26, C27 |
| 3 | 20K 100 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R12, R15 |
| 1 | DNP | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 2 | 15.0k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R20 |
| 1 | 330 100k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4 |
| 1 | 100k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5 |
| 2 | 10K 100k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R7 |
| 1 | 4.7K 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 1 | 20K 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9 |
| 1 | 47K 100k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10 |
| 1 | 47K 220 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11 |
| 1 | 20K 1.8k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13 |
| 1 | 4.7K 220 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14 |
| 1 | 1.8k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R16 |
| 1 | 20k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R17 |
| 1 | 100 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R18 |
| 1 | 75.0k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R19 |
| 1 | 3.00k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R21 |
| 1 | 30.0k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R22 |
| 1 | 7.50k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R23 |
| 2 | 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R24, R25 |
MuKOB Main Board design files
The KiCad project lives in the MorseKOB/MuKOB repository on GitHub; these links point at the commit this page was built from.
- Layouthw/MuKOB.kicad_pcb
- Schematichw/MuKOB.kicad_sch
- BOMhw/bom/IF-MkIV Costed BOM.xlsx
MuKOB Main Board: common questions
What microcontroller does the MuKOB Main Board use?
The MuKOB Main Board is built around the PicoW, from the RP2040/RP2350 family.
How big is the MuKOB Main Board?
The MuKOB Main Board measures 123.2 × 125.7 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the MuKOB Main Board?
119 components, from 83 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 Main Board 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 Main Board design in my own project?
Yes, under the terms of its MIT license, which MorseKOB chose for the repository.
Can I test firmware for the MuKOB Main Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
More boards in MuKOB
MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIV
104.1 × 78.7 mm75 parts2LMIT0
MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII
104.1 × 78.7 mm72 parts2LMIT0
MuKOB / RPi / USB - K&S IF MkV
103 × 59.6 mm59 parts2LMIT0
KOB-Sounder Interface
104.1 × 78.7 mm54 parts2LMIT0
MuKOB-Key & Sounder Interface, MKOB4 USB Interface
104.1 × 78.7 mm48 parts2LMIT0
MuKOB UI Board
99.1 × 61 mm30 parts2LMIT0
MuKOB - Comm Adapter
48.7 × 30.5 mm3 parts2LMIT0
MuKOB - Jack Adaptor
25.4 × 38.1 mm3 parts2LMIT0
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