

Pedal
Digital guitar pedal with game boy micro form factor
- Size
- 2 × 24.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 166
- Nets
- 319
- Pads
- 890
- Tracks, vias
- 58, 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 25 Apr 2026
- Updated
- 10 Oct 2026
Overview
Pedal is an open-source printed circuit board by benthacher, from the benthacher/pedal repository on GitHub. It is a 4-layer board of 2 × 24.9 mm with 166 parts on 319 nets, routed with 58 tracks and 2 vias.
It is built around the STM32H745XIH6, AW9364DNR and LM321, with the TPA6130A2RTJR, FXLA108BQX and USBLC6-2SC6 among its other parts. Its parts include 73 capacitors, 49 resistors, 17 ICs, 11 connectors and 9 switches. It belongs with the audio and music boards and the STM32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
12STM32H745XIH6
TFBGA-265-40℃~+85℃ 1.62V~3.6V 12bit 168 16bit 1MB 240MHz、480MHz 2MB 32 Bit ARM Cortex-M4、ARM Cortex-M7 Built-in FLASH TFBGA-265 Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)AW9364DNR
DFN-8-EP(2x2)-40℃~+85℃ 1% 2.8V~5.5V 20mA 4 Over-Temperature Protection (OTP) DFN-8-EP(2x2) LED Drivers ROHSAWINICLED DriversLM321
SOT-23-50℃~+70℃ 1 2mV 3nA 400V/ms 40mA 430uA 45nA 90dB SOT-23-5 Operational Amplifier ROHSPJSEMIOperational AmplifierTPA6130A2RTJR
QFN-20-EP(4x4)-40℃~+85℃ -90dB 0.0055% 2 Pairs Differential Inputs 2-Channel 2.5V~5.5V 290mWx1@16Ω 4mA 98dB Automatic mute/no-noise switch、Enable/shutdown function、ESD protection、Digitally programmable gain Class AB QFN-20-EP(4x4) Audio Amplifiers ROHSTexas InstrumentsAudio AmplifiersFXLA108BQX
DQFN-20(2.5x4.5)-40℃~+85℃ 1 1.1V~3.6V 1.1V~3.6V 140Mbps 8 Automatic direction detection、Power-off protection、Output enable high-impedance Bidirectional Level translator Tri-State DQFN-20(2.5x4.5) Translators, Level Shifters ROHSonsemiTranslators, Level ShiftersUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)8132H-25.000NL33DTL
SMD3225-4P-40℃~+85℃ 25MHz 3.3V CMOS ±2ppm SMD3225-4P Temperature Compensated Crystal Oscillators (TCXO) ROHSHCITemperature Compensated Crystal Oscillators (TCXO)BQ25302RTE
WQFN-16-EP(3x3)-40℃~+85℃ 1 2A 4.4V 4uA 6.2V Charging IC Lithium Battery Support WQFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery ManagementICM-42607-P
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2.25KB 3.5uA IMU (accelerometer + gyroscope) Motion event detection、Over-range protection function SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSTDK InvenSenseAccelerometersTPS2116DRL
SOT-583Operating status indication SOT-583 Power Management - Specialized ROHSTexas InstrumentsPower Distribution Switches59453-042110ECHLF
SMD,P=0.5mm,卧贴FFC, FPC (Flat Flexible) Connector AssembliesAmphenolTL3315NF100Q
SMD-4P,4.5x4.5mm-20℃~+70℃ 0.55mm 15V 1N 4.5mm 4.5mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD-4P,4.5x4.5mm Tactile Switches ROHSE-SwitchTactile Switches
Parts
166| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | 1uF | Capacitor_SMD:C_0402_1005Metric | C3, C10, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32, C33, C34 +18 |
| 26 | 10k | Resistor_SMD:R_0402_1005Metric | R12, R13, R14, R16, R33, R34, R35, R36, R37, R38, R39, R40, R41, R42, R43, R44 +10 |
| 12 | 10nF | Capacitor_SMD:C_0402_1005Metric | C16, C65, C66, C67, C68, C69, C70, C71, C72, C73, C74, C75 |
| 8 | 330nF | Capacitor_SMD:C_1206_3216Metric | C50, C53, C58, C59, C59, C60, C61, C61 |
| 6 | 4.7k | Resistor_SMD:R_0402_1005Metric | R19, R20, R21, R22, R25, R27 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6, C9, C47, C48, C49 |
| 5 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C12, C13, C14, C19, C20 |
| 4 | 22uF | Capacitor_SMD:C_0805_2012Metric | C2, C15, C17, C18 |
| 3 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C5, C7, C11 |
| 3 | 91k | Resistor_SMD:R_0402_1005Metric | R1, R3, R5 |
| 3 | FXLA108BQX | custom:DHVQFN-20_L4.5-W2.5-P0.50-BL-EP | U12, U13, U14 |
| 3 | PJ-342 141 | custom:AUDIO-SMD_PJ-342-141 | J7, J8, J9 |
| 2 | 1uH | Inductor_SMD:L_1008_2520Metric | L1, L2 |
| 2 | 2M | Resistor_SMD:R_0603_1608Metric | R18, R23 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | GND | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | J5, J6 |
| 2 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U5, U6 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R24 |
| 1 | 15k | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 2.2uH | Inductor_SMD:L_0805_2012Metric | L3 |
| 1 | 2.4k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 200k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 220pF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 22k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 23.2k | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 300k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 4.53k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 511k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 59453-042110ECHLF | custom:AMPHENOL_59453-042110ECHLF | J10 |
| 1 | 8132H-25.000NL33DTL | custom:OSC-SMD_4P-L3.2-W2.5-BL | U9 |
| 1 | A | custom:SW-SMD_4P-L4.5-W4.5-P3.50-LS4.8 | SW2 |
| 1 | AW9364DNR | custom:DFN-8_L2.0-W2.0-P0.50-BL-EP-1 | U11 |
| 1 | B | custom:SW-SMD_4P-L4.5-W4.5-P3.50-LS4.8 | SW3 |
| 1 | BQ25302 | Package_DFN_QFN:WQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U7 |
| 1 | BQ27427YZFR | footprints:IC_BQ27427YZFR | U8 |
| 1 | CHARGE | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | ICM-42607-P | custom:LGA-14_L3.0-W2.5-P0.50-TL_QMI8658A | U10 |
| 1 | L | custom:SW-SMD_L4.7-W3.5-P3.35-EH | SW8 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D2 |
| 1 | LM321 | custom:SC-70-5_L2.1-W1.3-P0.65-LS2.1-BR | U17 |
| 1 | MK-11C04-G013 | custom:SW-SMD_MK-11C04-G013 | SW1 |
| 1 | R | custom:SW-SMD_L4.7-W3.5-P3.35-EH | SW9 |
| 1 | SELECT | custom:SW-SMD_L3.9-W3.0-P4.45 | SW7 |
| 1 | START | custom:SW-SMD_L3.9-W3.0-P4.45 | SW6 |
| 1 | STM32H745XIH6 | custom:BGA265C80P17X17_1400X1400X120 | U1 |
| 1 | TAC5111IRGER | custom:VQFN-24_L4.0-W4.0-P0.50-BL-EP2.1_1 | U15 |
| 1 | THERM | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | J4 |
| 1 | TLV77018PDBVR | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | TPA6130A2RTJR | custom:QFN-20_L4.0-W4.0-P0.5-TL-EP | U18 |
| 1 | TPS2116DRL | Package_TO_SOT_SMD:SOT-583-8 | U4 |
| 1 | TPS631000DRLR | custom:SOT50P160X60-8N | U2 |
| 1 | TagConnect | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 1 | VBATT | Connector_Wire:SolderWirePad_1x01_SMD_1x2mm | J3 |
| 1 | X | custom:SW-SMD_4P-L4.5-W4.5-P3.50-LS4.8 | SW4 |
| 1 | Y | custom:SW-SMD_4P-L4.5-W4.5-P3.50-LS4.8 | SW5 |
| 1 | YTC05201-500R-0WLW | custom:FPC-SMD_50P-P0.50_YTC05201-500R-0WLW | J12 |
| 1 | ~ | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP1 |
The 165 most common of 166 parts.
Questions
How big is the Pedal PCB?
It measures 2 × 24.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Pedal use?
166 parts, built around the STM32H745XIH6, AW9364DNR, LM321 and TPA6130A2RTJR. 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 Pedal KiCad files?
From the benthacher/pedal repository on GitHub, at the commit this page was made from: the board is pedal.kicad_pcb and its schematic codec.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pedal design in my own project?
Its repository states no licence, so its author keeps all rights: ask benthacher before reusing the design.
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