2 layers33 × 50 mm
Hema console
rapha-tech/ESP32-hema-console
New PCB for the small console from hema to use an ESP32
59 parts4
2 layers52 × 83 mm
Retro Card V0
rapha-tech/Retro-CardSmall credit card sized console based around the ESP32-P4
- Size
- 52 × 83 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 94
- Pads
- 330
- Tracks, vias
- 563, 252
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 1 Sep 2026
- Updated
- 1 Sep 2026
Overview
Retro Card V0 is an open-source printed circuit board by rapha-tech, from the rapha-tech/Retro-Card repository on GitHub. It is a 2-layer board of 52 × 83 mm with 78 parts on 94 nets, routed with 563 tracks and 252 vias.
It is built around the 74LVC1G17Z, MT3608 and NS4168, with the SN74LVC1G80DCKRE4, TP4054 and BAT760 among its other parts. Its parts include 20 resistors, 14 switches, 12 capacitors, 6 ICs and 3 diodes. It belongs with the retro computing and games boards and the ESP32 and RISC-V boards of this library.
Main components
8
74LVC1G17Z
SOT-553-40℃~+125℃ 1 1 1.65V~5.5V 10uA 32mA 32mA 4.4ns@5V,15pF 74LVC Push-pull Schmitt trigger Unidirectional SOT-553 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
NS4168
ESOP-8-EP(3.9x4.9x1.27)-80dB 0.2% 1-Channel 13mA 2.5Wx1@4Ω 3V~5.5V 80% 85dB Automatic mute/no-noise switch、Enable/shutdown function、Filterless architecture、Built-in audio processing Class D ESOP-8-EP(3.9x4.9x1.27) Audio Amplifiers ROHSShenzhen Nsiway TechAudio Amplifiers
SN74LVC1G80DCKRE4
SC-70-5-40℃~+125℃ 1 1.1ns 1.65V~5.5V 10uA 160MHz 24mA 24mA 3.5pF 3.8ns@5V,15pF 400ps 74LVC D-Type Push-Pull Rising Edge SC-70-5 Flip Flops ROHSTexas InstrumentsFlip Flops
TP4054
SOT-23-5L-40℃~+85℃ 1 25uA 4.2V 4.2V~6.5V 500mA Charging IC Lithium Battery Not supported 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 SOT-23-5L Battery Management ROHSUMWBattery Management
BAT760
SOD-3231 Independent 1A 30V 5.5A 50uA@15V 550mV@1A SOD-323 Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
CJ3139K
SOT-23-55℃~+150℃ 1 P-Channel 150mW 15pF 170pF 20V 350mV 520mΩ@4.5V 660mA SOT-723 MOSFETs ROHSJiangsu Changjing Electronics Technology (CJ)MOSFETs
DSK24
SOD-123FLSchottky Diodeshongjiacheng
README
readme.mdThis is the repo for my latest ESP32 handheld console: the Retro-Card (Name might change)
In the Hardware folder you'll find 2 versions:
- V1 : the current version I'm working on
- V0 : an older version I keep for future reference
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 10K | Resistor_SMD:R_0402_1005Metric | R1, R2, R5, R6, R8, R9, R13, R17, R18, R19, R20, R21 |
| 8 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C2, C5, C6, C13, C15 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 1K | Resistor_SMD:R_0603_1608Metric | R4, R7, R12 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C3, C14 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C4, C7 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric | R15, R16 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 2K | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 4.7uH | Inductor_SMD:L_APV_ANR252012 | L1 |
| 1 | 74LVC1G17 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U2 |
| 1 | 7K5 | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | A | custom symbols:metal_dome_ABXY | SW10 |
| 1 | B | custom symbols:metal_dome_ABXY | SW9 |
| 1 | BAT760 | Diode_SMD:D_SOD-323_HandSoldering | D5 |
| 1 | CJ3139K | Package_TO_SOT_SMD:SOT-723 | Q2 |
| 1 | CMS16090318SX8 | custom symbols:speaker | LS1 |
| 1 | DOWN | custom symbols:metal_dome_d-pad | SW4 |
| 1 | DSK24 | Diode_SMD:D_SOD-123F | D3 |
| 1 | ESP32-P4 module | custom symbols:WT013P4A1 | U1 |
| 1 | L | custom symbols:G-switch side switch | SW3 |
| 1 | LEFT | custom symbols:metal_dome_d-pad | SW1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MENU | custom symbols:micro_sw_plus_grand | SW8 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | Micro_SD_Card | custom symbols:micro_sd | J2 |
| 1 | NPN_S9013 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | NS4168 | Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.3x2.3mm | U4 |
| 1 | ON/OFF | custom symbols:G-switch side switch | SW7 |
| 1 | R | custom symbols:G-switch side switch | SW13 |
| 1 | RIGHT | custom symbols:metal_dome_d-pad | SW6 |
| 1 | RLED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | SELECT | custom symbols:micro_sw_plus_grand | SW11 |
| 1 | SN74LVC1G80DCKR | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U7 |
| 1 | ST7789 | custom symbols:ST7789-320x240 | DS1 |
| 1 | START | custom symbols:micro_sw_plus_grand | SW12 |
| 1 | SolderJumper | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TP4054 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | UP | custom symbols:metal_dome_d-pad | SW5 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | X | custom symbols:metal_dome_ABXY | SW15 |
| 1 | Y | custom symbols:metal_dome_ABXY | SW14 |
| 1 | battery_3.7v | custom symbols:BAT | B1 |
The 77 most common of 78 parts.
Questions
How big is the Retro Card V0 PCB?
It measures 52 × 83 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Retro Card V0 use?
78 parts, built around the 74LVC1G17Z, MT3608, NS4168 and SN74LVC1G80DCKRE4. 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 Retro Card V0 KiCad files?
From the rapha-tech/Retro-Card repository on GitHub, at the commit this page was made from: the board is Hardware/Retro-Card_V0/Retro-Card_V0.kicad_pcb and its schematic Hardware/Retro-Card_V0/Retro-Card_V0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Retro Card V0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask rapha-tech before reusing the design.
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