2 layers112.7 × 110.8 mm/8-channel_relay/8-channel_relay.kicad_pcb.jpg?size=s&soon)
4 layers107.5 × 102.5 mm
Neo
kc099/kicad- Size
- 107.5 × 102.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 145
- Nets
- 184
- Pads
- 590
- Tracks, vias
- 1,168, 197
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 31 Jul 2026
- Updated
- 28 Oct 2026
Overview
Neo is an open-source printed circuit board by kc099, from the kc099/kicad repository on GitHub. It is a 4-layer board of 107.5 × 102.5 mm with 145 parts on 184 nets, routed with 1,168 tracks and 197 vias.
It is built around the STM32F103C8T6, ESP32-WROOM-32 and SN65HVD3082EDR, with the LM2596S-ADJ, TF-01A and TLP291-4 among its other parts. Its parts include 69 resistors, 33 capacitors, 18 diodes, 12 ICs and 7 connectors. It belongs with the ESP32 and STM32 boards of this library.
Main components
12
STM32F103C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 20KB 2V~3.6V 32 Bit 37 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
SN65HVD3082EDR
SOP-8-40℃~+85℃ 1 1 12Mbps 3.3V 32 425uA Enable shutdown、Overcurrent Protection、Thermal shutdown protection、Tx/Rx enable Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSJSMSEMIRS-485 / RS-422 ICs
LM2596S-ADJ
TO-263-5-40℃~+125℃@(TA) 1 1.2V~37V 150kHz 3A 40V 80uA Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSUMWDC-DC Converters
TF-01A
SMD1.85mm Connector and Ejector MicroSD Card (TF Card) Push-Push With Locating Pins SMD SD Card / Memory Card Connector ROHSHRO ElectronicsSD Card / Memory Card Connector
TLP291-4
SOIC16Quad Channel Optocoupler, Phototransistor OutputToshibaUncategorised
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
ULN2003APWR(UMW)
TSSOP-16-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V Seven channels TSSOP-16 Darlington Transistor Arrays ROHSUMWDarlington Transistor ArraysW5500
LQFP-48_7x7-40℃~+85℃ 10BASE-T、100BASE-TX 3.3V 32KB SPI SPI Wake-up function、Programmable LED indication、Low-power mode Yes LQFP-48(7x7) Ethernet Controllers ROHSWIZNETEthernet Controllers
3296W-1-254LF
SIP-3P,9.5x4.8mm25 250kΩ 500mW ±10% ±100ppm/℃ SIP-3P,9.5x4.8mm Potentiometers, Variable Resistors ROHSBournsPotentiometers & Variable Resistors
ABLS-8.000MHZ-B2-T
HC-49S-SMD-20℃~+70℃ 18pF 80Ω 8MHz Crystal Oscillator ±20ppm ±50ppm HC-49S-SMD Crystals ROHSAbraconCrystals
HR911105A
插件0℃~+70℃ 1 Filtered Gold Non-PoE Phosphor bronze RJ45 Jack Right Angle Shielded With LED 插件 Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSHANRUNEthernet Connectors / Modular Connectors (RJ45 RJ11)
Parts
145| Qty | Value | Footprint | References |
|---|---|---|---|
| 30 | R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R13, R14, R15, R23, R24, R25, R26, R27, R28, R29, R30, R31, R33, R37, R38 +14 |
| 27 | R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R3, R4, R5, R6, R11, R18, R32, R35, R36, R49, R50, R61, R62, R65, R67 +11 |
| 14 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C6, C7, C9, C10, C14, C15, C33, C35, C37, C38, C39, C40, C41 |
| 10 | D_Zener | Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D7, D9, D10, D13, D14, D15, D16, D17, D18, D19 |
| 8 | C | Capacitor_SMD:C_0805_2012Metric | C17, C18, C19, C20, C21, C30, C31, C32 |
| 5 | 100n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C4, C12, C13, C22, C23 |
| 4 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19, R20, R21, R22 |
| 4 | TLP291-4 | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | U2, U4, U7, U9 |
| 3 | LED | LED_SMD:LED_1206_3216Metric | D8, D11, D12 |
| 2 | 12p | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C5 |
| 2 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R48, R60 |
| 2 | 1k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R8, R9 |
| 2 | Conn_01x10_Pin | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1-10-3.81_1x10_P3.81mm_Horizontal | J1, J6 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C36 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8 |
| 1 | 120 | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R10 |
| 1 | 1N5819 | Diode_SMD:D_SMA | D2 |
| 1 | 220u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C11 |
| 1 | 3296W-1-254LF | 3296W-1-254LF:TRIM_3296W-1-254LF | VR1 |
| 1 | 33 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R82 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R53 |
| 1 | 680u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | ABLS-8.000MHZ-B2-T | ABLS-8.000MHZ-B2-T:XTAL_ABLS-8.000MHZ-B2-T | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | C3E-16.000-12-1520-R | C3E-16.000-12-1520-R:XTAL_C3E-16.000-12-1520-R | Y2 |
| 1 | Conn_01x03_Pin | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1-3-3.81_1x03_P3.81mm_Horizontal | J4 |
| 1 | Conn_01x03_Pin | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J9 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | DE1207-470 | DE1207-470:DE1207 | L1 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | HR911105A | HR911105A:HANRUN_HR911105A | J10 |
| 1 | L | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | L78L05_SO8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U16 |
| 1 | LM2596S-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U13 |
| 1 | PESD3V3L4UG | Package_TO_SOT_SMD:SOT-353_SC-70-5 | D5 |
| 1 | SM6T33A | Diode_SMD:D_SMB | D3 |
| 1 | SM712 | SM712:SM712 | D1 |
| 1 | SN65HVD3082EDR | SN65HVD3082EDR:SOIC127P599X175-8N | U11 |
| 1 | SS34 | Diode_SMD:D_SMA | D4 |
| 1 | STM32F103C8T6 | STM32F103C8T6:QFP50P900X900X160-48N | U3 |
| 1 | TF-01A | TF-01A:TF-01A | MICRO_SD1 |
| 1 | ULN2003APWR | ULN2003APWR:SOP65P640X120-16N | U14 |
| 1 | W5500 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U6 |
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Questions
How big is the Neo PCB?
It measures 107.5 × 102.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Neo use?
145 parts, built around the STM32F103C8T6, ESP32-WROOM-32, SN65HVD3082EDR and LM2596S-ADJ. 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 Neo KiCad files?
From the kc099/kicad repository on GitHub, at the commit this page was made from: the board is Neo-Eth/Neo/Neo.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Neo design in my own project?
Its repository states no licence, so its author keeps all rights: ask kc099 before reusing the design.