4 layers65 × 20 mm
4 layers21 × 51 mm
DevboardV2
lekangji/Noctra-DevboardA RP2350 based devboard with esp c6 mini integration for wifi + bluetooth.
- Size
- 21 × 51 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 95
- Pads
- 356
- Tracks, vias
- 571, 118
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Apr 2026
- Updated
- 3 Apr 2026
Overview
DevboardV2 is an open-source printed circuit board by lekangji, from the lekangji/Noctra-Devboard repository on GitHub. It is a 4-layer board of 21 × 51 mm with 73 parts on 95 nets, routed with 571 tracks and 118 vias.
It is built around the ESP32-C6-MINI-1U-H4, W25Q128JVPIQ and HX4054A., with the TPD2EUSB30ADRTR and DMG1012T among its other parts. Its parts include 24 capacitors, 24 resistors, 7 ICs, 3 diodes and 3 connectors. It belongs with the radio and wireless and microcontroller boards boards and the ESP32, RP2350 and RISC-V boards of this library.
Main components
5
ESP32-C6-MINI-1U-H4
SMD,13.2x12.5mm-105.5dBm -40℃~+105℃ 2.4GHz 20.5dBm 382mA 3V~3.6V 73mA ESP32-C6FH4 Integrated Bluetooth function、Integrated Zigbee function、Support USB interface UART、SDIO、SPI、I2C、GPIO、USB SMD,13.2x12.5mm WiFi Modules ROHSEspressif SystemsWiFi Modules
W25Q128JVPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 120ms@(32KB) 128Mbit 133MHz 2.7V~3.6V 20 Years Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection、Power lock protection SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbond ElecNOR FLASH
HX4054A.
SOT-23-51 4.5V~5.5V 500mA 70uA Charging IC Lithium Battery SOT-23-5 Battery Management ROHSHXBattery Management
TPD2EUSB30ADRTR
SOT(9x3)0.45pF 100nA 14V 3.3V 4.5V ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional SOT(9x3) ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
DMG1012T
SOT-523-55℃~+150℃ 1 N-channel 1V 20V 280mW 300mΩ@4.5V、400mΩ@2.5V、500mΩ@1.8V 5.37pF 60.67pF 630mA 736.6pC@4.5V 9.68pF SOT-523 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.md
Noctra Devboard
A RP2350 based devboard with esp c6 mini integration for wifi + bluetooth.
| Front Render | PCB |
|---|---|
 |  |
Overview
- A main MCU (RP2350) for input / output pins
- A coprocessor (ESP32-C6 Mini) for wireless connectivity
- Power management (USB + battery support with battery charging)
Hardware Specs
- RP2350 microcontroller
- ESP32-C6 Mini (Wi-Fi + Bluetooth via ESP-AT)
- External 16MB flash memory (128Mbit)
- Power System
- TPS63100 buck-boost converter: 2A, 1.6V – 5.5V, 3V3_EN pin
- TPS2116 power mux: Auto-switch between USB and battery (~3V threshold)
- HX4054A battery charger: 500mA + indicator LED
- USB-C, with TPD2EUSB30 ESD protection for data lines
- ADC filtering + ADC_VREF pin
How to Use
Like a normal Pico:
- Power the board via USB-C, while holding down BOOTSEL to enter firmware writing mode.
- Flash firmware by dragging in the firmware file.
- Use onboard GPIO headers as you would with a standard Pico, but with wifi connectivity.
Motivation
After making my previous devboard, I wanted something with WiFi + bluetooth, so I came up with this new board. It has everything the previous board has, but better, with better power management, battery charging, and everything I could possibly want.Firmware
Current firmware is untested, but we should be able to use the Challenger+ firmware as the topology and pins are the same. You can find the firmware in the firmware folder.Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C7, C8, C9, C10, C11, C12, C19, C21 |
| 6 | 1K | Resistor_SMD:R_0402_1005Metric | R5, R6, R8, R9, R14, R22 |
| 5 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C3, C13, C14, C15, C16 |
| 5 | LOGO | LOGO | G***, G***, G***, G***, G*** |
| 4 | 100K | Resistor_SMD:R_0402_1005Metric | R10, R11, R20, R21 |
| 3 | LED | LED_SMD:LED_0402_1005Metric | D1, D2, D3 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R7, R19 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C22, C23 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 33pF | Capacitor_SMD:C_0402_1005Metric | C17, C18 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x20 | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J2, J3 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1, SW2 |
| 1 | 1 | Resistor_SMD:R_0201_0603Metric | R23 |
| 1 | 12 MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C20 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C24 |
| 1 | 2.2K | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 200 | Resistor_SMD:R_0201_0603Metric | R24 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 2M | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 47uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 511K | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 91K | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | AOTA-B201610S3R3-3.3uH | EasyEDA:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L2 |
| 1 | DMG1012T | Package_TO_SOT_SMD:SOT-523 | Q1 |
| 1 | ESP32-C6-MINI-1U-H4 | EasyEDA:WIFIM-SMD_61P-L13.2-W12.5-P0.80 | U6 |
| 1 | HX4054A. | EasyEDA:TSOT-23-5_L2.9-W1.6-P0.95-LS2.8-BL | U7 |
| 1 | LMSH2012081R0MTA-1uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | LOGO | Graphics:Logo_small | G*** |
| 1 | RP2350_60QFN | Package_DFN_QFN:QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm_ThermalVias | U1 |
| 1 | TPD2EUSB30ADRTR | EasyEDA:SOT-723_L1.2-W0.8-P0.80-LS1.2-BR | U4 |
| 1 | TPS2116DRLR | EasyEDA:SOT-583-8_L2.1-W1.6-P0.50-LS1.6-BL | U5 |
| 1 | TPS631000DRLR | EasyEDA:SOT-583-8_L2.1-W1.2-P0.50-LS1.6-BL | U2 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | W25Q128JVP | Package_SON:WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U3 |
Questions
How big is the DevboardV2 PCB?
It measures 21 × 51 mm and has 4 copper layers, 1.6 mm thick.
What parts does the DevboardV2 use?
73 parts, built around the ESP32-C6-MINI-1U-H4, W25Q128JVPIQ, HX4054A. and TPD2EUSB30ADRTR. 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 DevboardV2 KiCad files?
From the lekangji/Noctra-Devboard repository on GitHub, at the commit this page was made from: the board is pcb/kicad/DevboardV2.kicad_pcb and its schematic pcb/kicad/DevboardV2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DevboardV2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lekangji before reusing the design.
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