6 layers148 × 121 mm
4 layers170 × 80 mm
UMTK
AmorphousX/UMTKCode for running UMTK
- Size
- 170 × 80 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 99
- Nets
- 149
- Pads
- 405
- Tracks, vias
- 932, 716
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Sep 2022
- Updated
- 22 Oct 2025
Overview
UMTK is an open-source printed circuit board by AmorphousX, from the AmorphousX/UMTK repository on GitHub, published under the CC0-1.0 licence. It is a 4-layer board of 170 × 80 mm with 99 parts on 149 nets, routed with 932 tracks and 716 vias.
It is built around the DRV8873SPWPRQ1, HX711 and LM2576HVS-5, with the SN74LVC1T45DCK, TLV76133DCY and FSM4JSMATR among its other parts. Its parts include 37 resistors, 23 capacitors, 9 ICs, 5 connectors and 5 switches.
Main components
9
DRV8873SPWPRQ1
HTSSOP-24-EP-40℃~+125℃ 10A 10uA 150mΩ 4.5V~38V SPI Yes HTSSOP-24-EP Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
HX711
SOP-16-40℃~+85℃ 1.4mA 10Hz、80Hz 1MHz~20MHz、11.0592MHz 2 2.6V~5.5V 20mV、40mV、80mV 24 Built-in External、Built-in SPI Support Yes SOP-16 Analog to Digital Converters (ADC) ROHSAvia SemiconAnalog To Digital Converters (ADC)
LM2576HVS-5
TO-263-5-40℃~+125℃ 1 4V~60V 52kHz Buck Buck TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
SN74LVC1T45DCK
SC-70-6-40℃~+85℃ 1 1 1.65V~5.5V 1.65V~5.5V 420Mbps Bidirectional Level translator Power-off protection、Output enable high-impedance Tri-State SC-70-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
TLV76133DCY
SOT-223-40℃~+125℃ 1 1.6V@(1A) 16V 1A 3.3V 60dB@(1kHz) 60uA 60uVrms Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Input under-voltage protection、Built-in soft-start Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
FSM4JSMATR
SMD-4P,6x6mm-40℃~+85℃ 1.6N 100,000 cycles 24V 50mA 5mm 6mm 6mm Gull Wing Round Button SPST-NO Surface Mount,Vertical Without Bracket SMD-4P,6x6mm Tactile Switches ROHSTE ConnectivityTactile Switches
10033526-N3212LF
SMD-25℃~+85℃ 1 1A 30V 5P Black Female Mini-B Surface Mount, Right Angle SMD USB Connectors ROHSAmphenolUSB Connectors
MBR0560
SOD-123-55℃~+150℃ 5.5A 500mA 60V 700mV@500mA Independent SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
PJ-102BH
插件-25℃~+85℃ 2.5mm 24V 5A 6.5mm DC Power Jack Right Angle 插件 DC Power Connectors ROHSCUIDC Power Connectors
README
README.mdUMTK
Code for running UMTK
Indicator LED
- Slow Flash: Not Connected
- Fast Flash: Running
- ON: Jogging
- OFF: Standby
Parts
99| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0u1 | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C14, C15, C20, C22, C23 |
| 10 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R8, R9, R11, R13, R15, R17, R22, R23, R33 |
| 9 | MountingHole | MountingHole:MountingHole_4mm | H1, H2, H3, H4, H5, H6, H7, H8, H9 |
| 5 | 100r | Resistor_SMD:R_0603_1608Metric | R10, R12, R14, R16, R18 |
| 5 | 10u | Capacitor_SMD:C_0805_2012Metric | C6, C13, C16, C18, C19 |
| 5 | DNP | Resistor_SMD:R_0603_1608Metric | R19, R20, R21, R24, R34 |
| 5 | FSM4JSMATR | digikey-footprints:Switch_Tactile_SMD_6x6mm | S1, S2, S3, S4, S5 |
| 4 | 0R | Resistor_SMD:R_0603_1608Metric | R6, R7, R25, R32 |
| 3 | 10K | Resistor_SMD:R_0603_1608Metric | R35, R36, R37 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R1, R5 |
| 2 | 100u hv | Capacitor_SMD:CP_Elec_10x10.5 | C11, C17 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R30, R31 |
| 2 | 1u 16v | Capacitor_SMD:C_0603_1608Metric | C8, C12 |
| 2 | 1u hv | Capacitor_SMD:C_1206_3216Metric | C9, C10 |
| 2 | 680R | Resistor_SMD:R_0603_1608Metric | R26, R27 |
| 2 | CA56-12EWA | Display_7Segment:CA56-12EWA | U7, U8 |
| 2 | Header 2x3 | AMX_Logo:Dummy_Header_2x3 | HD1, HD2 |
| 2 | SN74LVC1T45DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U11, U12 |
| 2 | ZENER 5V | Diode_SMD:D_SOD-523 | D2, D3 |
| 1 | 1000u | Capacitor_SMD:CP_Elec_8x10.5 | C21 |
| 1 | 10033526-N3212LF | Connector_USB:USB_Mini-B_Wuerth_65100516121_Horizontal | J8 |
| 1 | 100u | Inductor_SMD:L_Sunlord_MWSA1206S-101 | L1 |
| 1 | 13k | Capacitor_SMD:C_0603_1608Metric | R28 |
| 1 | 47n | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 4k7 | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | Clone_Mega2560_Pro_Socket | AMX_Logo:Clone_Mega2560_Pro_Socket | A2 |
| 1 | DRV8873SPWPRQ1 | Package_SO:HTSSOP-24-1EP_4.4x7.8mm_P0.65mm_EP3.4x7.8mm_Mask2.4x4.68mm_ThermalVias | U1 |
| 1 | ESTOP | Connector_Phoenix_MSTB:PhoenixContact_MSTBA_2,5_2-G-5,08_1x02_P5.08mm_Horizontal | J2 |
| 1 | HX711 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | Header 2x16 | AMX_Logo:Dummy_Header_2x16 | HD4 |
| 1 | Header 2x21 | AMX_Logo:Dummy_Header_2x21 | HD3 |
| 1 | LM2576HVS-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U10 |
| 1 | LOADCELL | Connector_Phoenix_MC:PhoenixContact_MC_1,5_4-G-3.81_1x04_P3.81mm_Horizontal | J3 |
| 1 | MAX7221xWG | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U6 |
| 1 | MBR0560 | Diode_SMD:D_SOD-123 | D1 |
| 1 | Motor Out | Connector_Phoenix_MC:PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J1 |
| 1 | PJ-102BH | digikey-footprints:Barrel_Jack_5.5mmODx2.1mmID_PJ-202A | J5 |
| 1 | Q_PNP_BEC | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | TLV76133DCY | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U13 |
| 1 | Tensile Cat | AMX_Logo:Tensile Cat | G1 |
Questions
How big is the UMTK PCB?
It measures 170 × 80 mm and has 4 copper layers, 1.61 mm thick.
What parts does the UMTK use?
99 parts, built around the DRV8873SPWPRQ1, HX711, LM2576HVS-5 and SN74LVC1T45DCK. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the UMTK KiCad files?
From the AmorphousX/UMTK repository on GitHub, at the commit this page was made from: the board is PCB/UMTK_V1_5/UMTK.kicad_pcb and its schematic PCB/UMTK_V1_5/S0_Power.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the UMTK design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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