2 layers
2 layers76.2 × 50.8 mm
Dir
0x007E/dirDigital Radio
- Size
- 76.2 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 127
- Nets
- 96
- Pads
- 383
- Tracks, vias
- 412, 268
- Pours
- 16
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Feb 2026
- Updated
- 7 Aug 2026
Overview
Dir is an open-source printed circuit board by 0x007E, from the 0x007E/dir repository on GitHub. It is a 2-layer board of 76.2 × 50.8 mm with 127 parts on 96 nets, routed with 412 tracks and 268 vias.
It is built around the ATTINY1604-SSF, SI4735-D60-GU and FT230XS-R, with the PAM8406DR, AT24CM02-SSHM-T and LM1117DT-3.3 among its other parts. Its parts include 37 resistors, 31 capacitors, 11 diodes, 8 ICs and 6 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
11
ATTINY1604-SSF
SOIC-14-40℃~+125℃ 10bit 12 16KB 16MHz 1KB 2.7V~5.5V 256Byte 8 Bit AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SI4735-D60-GU
SSOP-24-150mil-20℃~+85℃ 153kHz~279kHz、520kHz~1.71MHz、2.3MHz~26.1MHz、64MHz~108MHz 2.7V~5.5V Receivers SPI、I2C SSOP-24-150mil RF Transceiver ICs ROHSSilicon LabsRF Transceiver ICs
FT230XS-R
SSOP-16-150mil-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART SSOP-16-150mil USB Converters ROHSFTDIUSB Converters
PAM8406DR
SOIC-16-40℃~+85℃ -70dB 0.11% 10mA 2 Single-Ended Inputs 2-Channel 2.5V~5.5V 5Wx2@2Ω 90% 90dB Automatic mute/no-noise switch、Enable/disable function、Filterless architecture、Configurable output topology Class AB、Class D SOIC-16 Audio Amplifiers ROHSDiodes IncorporatedAudio Amplifiers
AT24CM02-SSHM-T
SOIC-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 100 Years 10ms 1MHz 2Mbit Hardware write protection function、Noise suppression function、Built-in power-on reset (POR)、Built-in error correction code (ECC) function I2C SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
LM1117DT-3.3
TO-2520℃~+125℃@(Tj) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MCP73833
UncategorisedMicrochip Technology
CM1213A-01SO
SOT-23-40℃~+85℃ 0.85pF 10V 1A 1uA 3.3V 9V ESD IEC 61000-4-2 Single-channel SOT-23 ESD and Surge Protection (TVS/ESD) ROHSonsemiESD And Surge Protection (TVS/ESD)AO3416A
SOT-23-40℃~+150℃ 1 N-channel 1.1V 1.295nF 1.4W 10nC@4.5V 160pF 20V 25mΩ@4.5V 6A 87pF SOT-23 MOSFETs ROHSUMWMOSFETs
BAT43
DO-204AH-65℃~+125℃ 1 Independent 1V@0.2A 200mA 30V 4A 500nA@25V DO-204AH Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
BSP613P
SOT-223-55℃~+150℃ 1 P-Channel 17.7nC@30V 2W 3V 4.3A 53pF 60V 637pF 70pF 95mΩ@10V SOT-223 MOSFETs ROHSTECH PUBLICMOSFETs
Parts
127| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C5, C7, C10, C11, C13, C14, C17, C18, C19, C20, C21, C23, C27 |
| 6 | 10u | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C1, C3, C4, C6, C8, C9 |
| 6 | 1k | Resistor_SMD:R_1206_3216Metric | R4, R5, R6, R12, R16, R26 |
| 5 | 470 | Resistor_SMD:R_1206_3216Metric | R9, R10, R13, R14, R15 |
| 5 | opt. | Resistor_SMD:R_1206_3216Metric | R33, R34, R35, R36, R37 |
| 4 | 0R | Resistor_SMD:R_1206_3216Metric | R28, R29, R30, R31 |
| 4 | TestPoint_Probe | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4 |
| 3 | 10k | Resistor_SMD:R_1206_3216Metric | R7, R17, R22 |
| 3 | 10u | Capacitor_SMD:CP_Elec_5x5.3 | C24, C26, C29 |
| 3 | 3k3 | Resistor_SMD:R_1206_3216Metric | R24, R27, R32 |
| 3 | 47u | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C12, C15, C16 |
| 3 | Red | LED_SMD:LED_1206_3216Metric | D3, D7, D9 |
| 3 | SW_SPST | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx58-2LFS | SW3, SW4, SW5 |
| 3 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP1, JP3, JP4 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C25, C28 |
| 2 | 22k | Resistor_SMD:R_1206_3216Metric | R20, R21 |
| 2 | 5k1 | Resistor_SMD:R_1206_3216Metric | R1, R2 |
| 2 | 5k6 | Resistor_SMD:R_1206_3216Metric | R18, R19 |
| 2 | CM1213A-01SO | Package_TO_SOT_SMD:SOT-23 | D10, D11 |
| 2 | Green | LED_SMD:LED_1206_3216Metric | D4, D8 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad | H3, H4 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2 |
| 2 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2 |
| 2 | Speaker | Connector_Wago_SMD:WAGO_2060-402_998-404 | LS1, LS2 |
| 1 | 1.5A | Fuse:Fuse_1206_3216Metric | F2 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric | R8 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Piher_PT-10-V10_Vertical | RV1 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric | C22 |
| 1 | 1n | Capacitor_SMD:C_0603_1608Metric | C31 |
| 1 | 2.0A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 2u2 | Inductor_SMD:L_Vishay_IFSC-1515AH_4x4x1.8mm | L1 |
| 1 | 32.768k | Oscillator:Oscillator_SMD_TXC_7C-4Pin_5.0x3.2mm | Y1 |
| 1 | 330 | Resistor_SMD:R_1206_3216Metric | R25 |
| 1 | 330k | Resistor_SMD:R_1206_3216Metric | R23 |
| 1 | 470nF | Capacitor_SMD:C_0805_2012Metric | C30 |
| 1 | 56nH | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | 70Ω/100Mhz/3A | Inductor_SMD:L_1206_3216Metric | FB1 |
| 1 | 732k | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | AO3416A | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | AT24CM02-SSHM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | ATtiny1604-SS | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | BAT43 | Diode_SMD:D_MiniMELF | D6 |
| 1 | BIN | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | FID2 |
| 1 | BSP613 | Package_TO_SOT_SMD:SOT-223 | Q1 |
| 1 | BZV36B3V6 | Diode_SMD:D_MiniMELF | D2 |
| 1 | Conn_01x02_Pin | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J2 |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x07_Pin | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Horizontal | J4 |
| 1 | Conn_Coaxial | Connector_SMA:SMA_Amphenol_901-143_Horizontal | J6 |
| 1 | DO-214AC | Diode_SMD:D_SMA | D1 |
| 1 | ESD | Symbol:ESD-Logo_6.6x6mm_SilkScreen | FID4 |
| 1 | FT230XS | Package_SO:SSOP-16_3.9x4.9mm_P0.635mm | U5 |
| 1 | LM1117DT-3.3 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U8 |
| 1 | MCP73833 | Package_SO:MSOP-10_3x3mm_P0.5mm | U1 |
| 1 | OH | Symbol:OSHW-Logo2_7.3x6mm_SilkScreen | FID3 |
| 1 | PAM8406D | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | QR | Images:QR_0x007e_very_small | FID1 |
| 1 | SW_DIP_x02 | Button_Switch_SMD:SW_DIP_SPSTx02_Slide_6.7x6.64mm_W8.61mm_P2.54mm_LowProfile | SW2 |
| 1 | SW_SPDT | Button_Switch_SMD:SW_SPDT_CK_JS102011SAQN | SW1 |
| 1 | Screw_Terminal_01x02 | Connector_Wago_SMD:WAGO_2060-402_998-404 | J5 |
| 1 | Si4735-D60-GU | Package_SO:SSOP-24_3.9x8.7mm_P0.635mm | U6 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
| 1 | TPS61023DRLR | Package_TO_SOT_SMD:SOT-563 | U2 |
| 1 | USB_C_Receptacle | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J1 |
| 1 | n.B. | Resistor_SMD:R_1206_3216Metric | R11 |
| 1 | n.B. | LED_SMD:LED_1206_3216Metric | D5 |
Questions
How big is the Dir PCB?
It measures 76.2 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dir use?
127 parts, built around the ATTINY1604-SSF, SI4735-D60-GU, FT230XS-R and PAM8406DR. 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 Dir KiCad files?
From the 0x007E/dir repository on GitHub, at the commit this page was made from: the board is pcb/DIR.kicad_pcb and its schematic pcb/DIR.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dir design in my own project?
Its repository states no licence, so its author keeps all rights: ask 0x007E before reusing the design.
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