4 layers101.5 × 43.6 mm
Alcantara v.1.0
zenitheesc/Alcantara
Mobile Ground Station for stratospheric probe monitoring and rescue. Goes well with the Zenith Monitor app.
90 parts5
4 layers116.3 × 163 mm
Layer test
voncloft/Macropad- Size
- 116.3 × 163 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 122
- Nets
- 100
- Pads
- 501
- Tracks, vias
- 573, 210
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Feb 2026
- Updated
- 18 Mar 2026
Overview
Layer test is an open-source printed circuit board by voncloft, from the voncloft/Macropad repository on GitHub. It is a 4-layer board of 116.3 × 163 mm with 122 parts on 100 nets, routed with 573 tracks and 210 vias.
It is built around the ESP32-S3-WROOM-1-N8R8, MT3608 and AP7361C-33E, with the MCP73831, SK6812MINI-E and AO3400A among its other parts. Its parts include 29 switches, 28 diodes, 10 resistors, 9 capacitors and 9 connectors. It belongs with the ESP32 boards of this library.
Main components
8
ESP32-S3-WROOM-1-N8R8
SMD,25.5x18mm-104.5dBm -40℃~+65℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3R8 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
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
AP7361C-33E
SOT-223-40℃~+85℃@(Ta) 1 1A 3.3V 340mV@(1A) 6V 75dB@(1kHz) 80uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MCP73831
UncategorisedMicrochip Technology
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
MSS-102545-14A-V-SMT
SMD-40℃~+85℃ 2,000 cycles 24V 300mA PC Pin Rectangular Columnar SPDT Through Hole 插件 Slide Switches ROHSCUISlide Switches
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
Macropad/README.mdMacropad
Parts
122| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | D | D_DO35_Custom | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +10 |
| 26 | SK6812MINI | RGB_PLACEHOLDER_3535 | RGB1, RGB2, RGB10, RGB11, RGB12, RGB13, RGB14, RGB15, RGB16, RGB17, RGB18, RGB19, RGB20, RGB21, RGB22, RGB23 +10 |
| 26 | SW_Push | Kailh_Hotswap_MX_1U_Custom | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +10 |
| 4 | 10uF | C_0603_1608Metric_LOCAL | C404, C405, C408, C409 |
| 4 | MountingHole | GEN_MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 5.1k | R_0603_1608Metric_LOCAL | R402, R403 |
| 1 | 100R | R_0603_1608Metric_LOCAL | R408 |
| 1 | 100k | R_0603_1608Metric_LOCAL | R409 |
| 1 | 100nF | C_0603_1608Metric_LOCAL | C406 |
| 1 | 10k | R_0603_1608Metric_LOCAL | R407 |
| 1 | 162k | R_0603_1608Metric_LOCAL | R405 |
| 1 | 1uF | C_0603_1608Metric_LOCAL | C402 |
| 1 | 22k | R_0603_1608Metric_LOCAL | R406 |
| 1 | 22uF | C_0603_1608Metric_LOCAL | C407 |
| 1 | 3.3k | R_0603_1608Metric_LOCAL | R404 |
| 1 | 330R | R_0805_2012Metric_LOCAL | R401 |
| 1 | 4.7uF | C_0603_1608Metric_LOCAL | C403 |
| 1 | 4.7uH | L_Boost_5x5_LOCAL | L401 |
| 1 | 470uF | GEN_CP_Radial_D8_P3.5 | C401 |
| 1 | 47R | R_0805_2012Metric_LOCAL | R410 |
| 1 | AO3400A | SOT-23_LOCAL | Q501 |
| 1 | AP7361C-33E | SOT-223-3_TabPin2_LOCAL | U402 |
| 1 | BATTERY_LIPO | GEN_PinHeader_1x2_P2.54 | J400 |
| 1 | BAT_CHG_BOOST | GEN_PinHeader_1x4_P2.54 | J401 |
| 1 | ESP32-S3-WROOM-1-N8R8 | ESP32-S3-WROOM-1_LOCAL | U901 |
| 1 | IR_LED_TX_HDR | GEN_PinHeader_1x3_P2.54 | J202 |
| 1 | LCD_SPI_CTRL | GEN_PinHeader_1x4_P2.54 | J303 |
| 1 | LCD_SPI_PWRDATA | GEN_PinHeader_1x4_P2.54 | J302 |
| 1 | LED_CHAIN | GEN_PinHeader_1x3_P2.54 | J301 |
| 1 | MCP73831 | SOT-23-5_LOCAL | U403 |
| 1 | MSS-102545-14A-V-SMT | SW_Slide_SPDT_BATTERY_KILL_MSS-102545-14A-V-SMT_LOCAL | SW402 |
| 1 | MT3608 | SOT-23-6_LOCAL | U404 |
| 1 | PTC_0.5A | R_0603_1608Metric_LOCAL | F401 |
| 1 | RotaryEncoder_Switch | GEN_RotaryEncoder_EC11_Switch | SW401 |
| 1 | SS14 | D_SOD123_LOCAL | D401 |
| 1 | SS14_VBUS_TO_5VSYS | D_SOD123_LOCAL | D402 |
| 1 | SW_Push | SW_TACT_3x6_4P_LOCAL | SW402 |
| 1 | TOUCH_I2C_SD_IRQ | GEN_PinHeader_1x5_P2.54 | J304 |
| 1 | TSOP4838_C124647 | GEN_PinHeader_1x3_P2.54 | J201 |
| 1 | USB_C_CHG_IN | USB_C_Receptacle_GCT_USB4125_6P_LOCAL | J402 |
Questions
How big is the Layer test PCB?
It measures 116.3 × 163 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Layer test use?
122 parts, built around the ESP32-S3-WROOM-1-N8R8, MT3608, AP7361C-33E and MCP73831. 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 Layer test KiCad files?
From the voncloft/Macropad repository on GitHub, at the commit this page was made from: the board is Macropad/__layer_test.kicad_pcb and its schematic Macropad/Macropad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Layer test design in my own project?
Its repository states no licence, so its author keeps all rights: ask voncloft before reusing the design.
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