4 layers25 × 74 mm
PTR mini pcb
PTR-projects/PTR_mini_hardware
Welcome to the KPPTR-hardware repository! This repository contains the design files for the hardware components used in the KPPTR project.
140 parts1MIT
4 layers26 × 56 mm
PTR micro pcb
PTR-projects/PTR_micro_hardwareWelcome to the KPPTR-hardware repository! This repository contains the design files for the hardware components used in the KPPTR project.
- Size
- 26 × 56 mm
- Copper layers
- 4
- Thickness
- 1.26 mm
- Parts
- 115
- Nets
- 76
- Pads
- 354
- Tracks, vias
- 701, 111
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 Sep 2026
- Updated
- 28 Oct 2026
Overview
PTR micro pcb is an open-source printed circuit board by PTR-projects, from the PTR-projects/PTR_micro_hardware repository on GitHub, published under the MIT licence. It is a 4-layer board of 26 × 56 mm with 115 parts on 76 nets, routed with 701 tracks and 111 vias.
It is built around the ESP32-C3FH4, MS560702BA03-50 and MX25R3235FZBIL0, with the LSM6DSV32X, SPX3819M5-L-3-3 and USB4105-GF-A-120 among its other parts. Its parts include 38 capacitors, 37 resistors, 8 ICs, 8 diodes and 6 transistors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
12
ESP32-C3FH4
QFN-32-EP(5x5)160MHz 32 Bit 3V~3.6V 400KB RISC-V Watchdog reset、Software reset、Built-in general-purpose timer、Programmable watchdog、Built-in temperature sensor、True random number generator (TRNG)、Storage encryption、Infrared remote control QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSEspressif SystemsMicrocontrollers (MCU/MPU/SOC)
MS560702BA03-50
SMD-8P-40℃~+85℃ 1.5mbar 1.8V~3.6V 140nA 1Kpa~1.2bar I2C、SPI Yes SMD-8P Pressure Sensors ROHSTE ConnectivityPressure Sensors
MX25R3235FZBIL0
USON-8(3x4)-40℃~+85℃ 1.65V~3.6V 100,000 cycles 20 Years 3.2ms 32Mbit 80MHz Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI USON-8(3x4) NOR FLASH ROHSMXICNOR FLASH
LSM6DSV32X
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 3uA 4.5KB IMU (accelerometer + gyroscope) Motion event detection、Synchronization and timestamp SPI、I2C、I3C X,Y,Z X,Y,Z ±32g ±4000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
SPX3819M5-L-3-3
SOT-23-5-40℃~+85℃@(Ta) 1 20V 3.3V 420mV@(100mA) 500mA 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USB4105-GF-A-120
SMD-40℃~+85℃ 1 16P 48V 5A Black Female Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
USBLC6-2SC6-ES
SOT-23-6L-40℃~+85℃ 0.6pF 15V 1uA 2 4.5A 5V 6V 70W@8/20us ESD IEC 61000-4-2 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHSElecSuperESD And Surge Protection (TVS/ESD)
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB 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 SemiconductorMOSFETsAO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
JK-NSMD050-30
1206-40℃~+85℃ 1.2mm 1.8mm 100A 100ms 150mΩ 1A 3.5mm 300mΩ 30V 500mA 600mW 1206 Resettable Fuses ROHSJinrui Electronic Materials Co.Resettable Fuses
AMCA31-2R450G-S1F-T3
1206-40℃~+85℃ 0.5dBi 1.2mm 1.6mm 100MHz 2 2.45GHz 3.2mm 3W 50Ω Patch Antenna 1206 Antennas ROHSAbraconAntennas
README
README.mdKPPTR-hardware
Welcome to the KPPTR-hardware repository! This repository contains the design files for the hardware components used in the KPPTR project. The design files have been created using KiCad 10.0, a powerful open-source electronics design automation suite.
Project Overview
The design files in this repository correspond to the hardware components that make up the KPPTR project, which enhances the capabilities of DIY amateur rockets and high-altitude balloons. The design files have been crafted using KiCad 10.0, a popular and user-friendly tool for creating electronic schematics and PCB layouts. Both hardware and sofware were developed by PTR member!
Design Files
The repository includes design files for the various hardware components used in the KPPTR project, including:
- Schematics: Detailed electronic schematics that illustrate the connections and components used in the design.
- PCB Layouts: PCB layout designs that define the placement and routing of components on the printed circuit board.
- Libraries: Custom component libraries and footprints used in the project.
Getting Started
To access and work with the design files, follow these steps:
- Clone the repository to your local machine.
- Install KiCad 10.0 if you haven't already.
- Open the KiCad project files (
.profiles) in the appropriate subdirectories to access the schematics and PCB layouts.
Feel free to explore the design files and customize them to suit your specific needs. If you make any improvements or modifications to the hardware designs, consider contributing back to the repository to help the community.
Contributors
- bartekM
- https://gitlab.com/andrewziebinski
- https://gitlab.com/Bdabrowsky
- https://gitlab.com/krecik1
- https://gitlab.com/US_air_force
- https://gitlab.com/karmelek96
- and many others!
License
This project is licensed under the MIT License. You can freely use, modify, and distribute the code in accordance with the terms of the license.
Unless required by applicable law or agreed to in writing, this software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Thank you for your interest in KPPTR-firmware! If you have any questions or feedback, please don't hesitate to reach out to us. Happy coding and safe flights!
Parts
115| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 10k | Resistor_SMD:R_0402_1005Metric | R15, R17, R18, R34, R41, R43, R53, R54, R57, R58, R59, R60, R63, R65, R66, R81 +4 |
| 16 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C7, C8, C12, C14, C15, C18, C19, C20, C22, C23, C24, C25, C49, C69, C70 |
| 9 | 1uF | Capacitor_SMD:C_0402_1005Metric | C4, C6, C11, C13, C17, C39, C50, C55, C56 |
| 7 | 10uF | Capacitor_SMD:C_0603_1608Metric | C5, C21, C26, C44, C57, C68, C73 |
| 7 | 1k | Resistor_SMD:R_0402_1005Metric | R10, R11, R12, R13, R35, R36, R44 |
| 6 | 22R | Resistor_SMD:R_0402_1005Metric | R5, R6, R7, R8, R32, R69 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 4 | WS2812B-2020 | KP-PTR_lib:WS2812B-2020 | D1, D2, D3, D4 |
| 3 | AO3400A | KP-PTR_lib:SOT-23 | Q1, Q6, Q7 |
| 3 | AO3401A | KP-PTR_lib:SOT-23 | Q2, Q4, Q5 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R61, R62 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | JK-nSMD050-30 | Fuse:Fuse_1206_3216Metric | F2, F3 |
| 1 | 1.8nH | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 100k 1% | Resistor_SMD:R_0402_1005Metric | R31 |
| 1 | 10k 1% | Resistor_SMD:R_0402_1005Metric | R33 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C71 |
| 1 | 10uF LowLeak | Capacitor_SMD:C_0603_1608Metric | C72 |
| 1 | 24nH | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | 3.3pF | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 3.9nH | Inductor_SMD:L_0402_1005Metric | L2 |
| 1 | 4.7pF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | AMCA31-2R450G-S1F-T3 | KP-PTR_lib:AMCA31-2R450G-S1F-T3 | AE1 |
| 1 | B5819W SL | Diode_SMD:D_SOD-123 | D14 |
| 1 | Battery_Cell | KP-PTR_lib:LiPol_90mAh | BT1 |
| 1 | Blue | LED_SMD:LED_0603_1608Metric | D9 |
| 1 | DB125-3.5-3P-GN-S | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-3.5-H_1x03_P3.50mm_Horizontal | J3 |
| 1 | ESP32-C3FH4 | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U1 |
| 1 | ESP32_PROG_CON | Connector_PinHeader_1.27mm:PinHeader_1x06_P1.27mm_Vertical | J1 |
| 1 | GMD0955YB-3V2700 | Buzzer_Beeper:MagneticBuzzer_PUI_AT-0927-TT-6-R | LS1 |
| 1 | JS202011CQN | KP-PTR_lib:JS202011CQN | SW1 |
| 1 | LOGO | LOGO | G*** |
| 1 | LSM6DSV32 | KP-PTR_lib:LSM6DSO32 | U4 |
| 1 | MS560702BA03-50 | KP-PTR_lib:MS5607 | U7 |
| 1 | MX25R3235FZBIL0 | Package_SON:Winbond_USON-8-2EP_3x4mm_P0.8mm_EP0.2x0.8mm | U13 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D8 |
| 1 | SPX3819M5-L-3-3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | TP4054-42 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | USB4105-GF-A-12 | KP-PTR_lib:USB_C_16P_SMD_USB4105-GF-A | U2 |
| 1 | USBLC6-2SC6-ES | Package_TO_SOT_SMD:SOT-23-6 | U11 |
| 1 | XTM20040000FT00351001 | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y2 |
| 1 | Yellow | LED_SMD:LED_0603_1608Metric | D10 |
| 1 | ~ | KP-PTR_lib:Reference_frame | M1 |
Questions
How big is the PTR micro pcb PCB?
It measures 26 × 56 mm and has 4 copper layers, 1.26 mm thick.
What parts does the PTR micro pcb use?
115 parts, built around the ESP32-C3FH4, MS560702BA03-50, MX25R3235FZBIL0 and LSM6DSV32X. 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 PTR micro pcb KiCad files?
From the PTR-projects/PTR_micro_hardware repository on GitHub, at the commit this page was made from: the board is PTR_micro_pcb/PTR_micro_pcb.kicad_pcb and its schematic PTR_micro_pcb/IO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PTR micro pcb design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 6 layers39.5 × 39.5 mm
P4eregrine
anticitizn/p4eregrine
All-in-one ESP32 P4-based drone ESC, flight controller, and video processor
359 parts21 - 4 layers83 × 67.5 mm
MarineBoard
Cadburies/SisuAssistant
Sailing yacht Sisu: Home Assistant + ESPHome Marine Board (alternator regulation, tanks) + MQTT kernel, Signal K/Grafana/InfluxDB on a NAS, and Sisu Nav chart & weather-routing cockpit.
162 parts1Apache-2.0 - 4 layers25 × 25.5 mm
Qwiic CAN Saleae Adapter
SK-Electronics-Consulting/electronics-widgets
Small, Custom Tools for Electronics
15 parts1 - 2 layers95.9 × 95 mm
Hnr26-badge
nushackers/hnr26-badge-quacknroll
Hack&Roll 2026 "Quack & Roll" badge source files, for both hardware and firmware
77 parts8 - 2 layers57.5 × 72 mm
ESP32-Based Sensor PCB
blazjerman/ESP32-Based-Sensor-PCB
For updates or additional library formats, visit SnapEDA.
77 parts4MIT - 2 layers30 × 25 mm
- 2 layers60 × 38 mm
USB Hub
hiralsinghal/USB-Hub
This is a USB hub. It has a USB-C port to connect to the device. It has two USB-A ports and two USB-C ports, which can be used for connecting more devices as it allows you to increase the number of ports available.
29 parts