2 layers
2 layers86 × 50 mm
CYD NMEA
Mate8/NMEA-Tester2Nmea0183 Sniffer basen on CYD PCB
- Size
- 86 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 66
- Pads
- 288
- Tracks, vias
- 726, 93
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Feb 2026
- Updated
- 15 Apr 2026
Overview
CYD NMEA is an open-source printed circuit board by Mate8, from the Mate8/NMEA-Tester repository on GitHub. It is a 2-layer board of 86 × 50 mm with 76 parts on 66 nets, routed with 726 tracks and 93 vias.
It is built around the CH340C, ESP32-WROOM-32 and SC8002B, with the W25Q32JVSSIQ, XPT2046 and AMS1117-3.3 among its other parts. Its parts include 21 resistors, 17 capacitors, 7 ICs, 5 connectors and 5 switches. It belongs with the ESP32 boards of this library.
Main components
12
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
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
SC8002B
SOP-8-40℃~+85℃ 0.25% 1-Channel 2.5Wx1@4Ω 2V~5V 6.5mA 60dB Enable/shutdown function SOP-8 Audio Amplifiers ROHSFMAudio Amplifiers
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
XPT2046
TSSOP-16-40℃~+85℃ 12 2.2V~5.25V、2.7V~3.6V 4-Wire Resistive 500uA Built-in temperature sensor Built-in、External SPI TSSOP-16 Touch Screen Controllers ROHSXPTTouch Screen Controllers
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
HC-1.25-4PWT
SMD,P=1.25mm,卧贴-40℃~+105℃ 1 1.25mm 10.05mm 125V 1A 1x4P 3.57mm 4 4P 5.25mm Auxiliary Solder Pin Brass LCP PicoBlade(MX 1.25) Surface Mount, Right Angle Tin UL94V-0 SMD,P=1.25mm,Surface Mount，Right Angle Wire To Board Connector ROHSHCTLWire To Board Connector
L8050QLT1G
SOT-23-55℃~+150℃ 1 NPN 100 150nA 225mW 25V 500mV 5V 800mA NPN SOT-23 Bipolar (BJT) ROHSLeshan Radio (LRC)Bipolar (BJT)
TS-1089S-02526
SMD-4P,4.2x3.3mm100,000 cycles 12V 2.5mm 2.6N 3.25mm 4.2mm 50mA Oval Button SMD(SMT) Tab SPST Surface Mount,Vertical White Without Bracket SMD-4P,4.2x3.3mm Tactile Switches ROHSXUNPUTactile Switches
1N5819HW-7-F-01
SOD-123Schottky DiodesDiodes Incorporated
2.0-2P立贴
CONN-SMDSMD Wire To Board Connector ROHSBOOMELEWire To Board / Wire To Wire ConnectorAO3401
SOT-231 P-Channel 1.3V 115pF 30V 350mW 4.2A 75mΩ@4.5V 77pF 954pF P-Channel SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
README
README.mdNMEA-Tester
Nmea0183 Sniffer basen on CYD PCB
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | C0603 | C3, C4, C5, C6, C9, C13, C14, C17 |
| 8 | 10kΩ | R_0603_S_MYM | R1, R2, R3, R10, R12, R13, R14, R18 |
| 5 | TESTPOINT | TESTPOINT | S1, S2, S3, S4, S5 |
| 4 | 10uF | C0805 | C1, C2, C15, C16 |
| 3 | 1kΩ | R0603 | R16, R17, R20 |
| 3 | HC-1.25-4PWT | CONN-SMD_4P-P1.25-HC-1.25-4PWT | CN1, P1, P3 |
| 2 | 100Ω | R_0603_S_MYM | R5, R6 |
| 2 | 1MΩ | R0603 | R15, R19 |
| 2 | 1uF | C0603 | C7, C8 |
| 2 | AMS1117-3.3 | SOT-89-3_L4.5-W2.5-P1.50-LS4.2-BR | U1, U7 |
| 2 | Jumper | PAD-JUMPER-2-SMD-SOLDER | JP1, JP3 |
| 2 | L8050QLT1G | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | T1, T2 |
| 2 | TS-1089S-02526 | SW-SMD_4P-L4.2-W3.3-P2.15-LS5.1 | BOOT1, RST1 |
| 1 | 100pF | C0603 | C12 |
| 1 | 10kΩ | RES-ARRAY-SMD_0603-8P-L3.2-W1.6-BL | RN2 |
| 1 | 1N5819HW-7-F | SOD-123_L2.8-W1.8-LS3.7-FD | D1 |
| 1 | 1nF | C0603 | C11 |
| 1 | 2.0-2P立贴 | CONN-SMD_2.0-2PLT | P4 |
| 1 | 22kΩ | R_0603_S_MYM | R8 |
| 1 | 3.9Ω | R_0603_S_MYM | R11 |
| 1 | 4.7kΩ | R_0603_S_MYM | R4 |
| 1 | 470nF | C0603 | C10 |
| 1 | 47kΩ | R_0603_S_MYM | R7 |
| 1 | 68kΩ | R_0603_S_MYM | R9 |
| 1 | AO3401 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q1 |
| 1 | AO3402 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q2 |
| 1 | CH340C | SOP-16_L10.0-W3.9-P1.27-LS6.0-BL | U6 |
| 1 | ESP32-WROOM-32 | WIFIM-SMD_ESP32-WROOM-32-N4 | U2 |
| 1 | GT36516 | RES-SMD_L3.6-W2.4 | R21 |
| 1 | Hole_gge19338 | Hole_gge19338 | Hole_gge19338 |
| 1 | Hole_gge19341 | Hole_gge19341 | Hole_gge19341 |
| 1 | Hole_gge19344 | Hole_gge19344 | Hole_gge19344 |
| 1 | Hole_gge19347 | Hole_gge19347 | Hole_gge19347 |
| 1 | ILI9341_18_PIN | ILI9341 18 PIN | P2 |
| 1 | MHP5050RGBDT | LED-ARRAY-SMD_6P-L5.0-W5.0-TR-RD | LED1 |
| 1 | MICRO 4P DIP | MINI-USB-SMD_MICRO-4P-DIP | USB1 |
| 1 | Pad_gge19350 | Pad_gge19350 | Pad_gge19350 |
| 1 | Pad_gge19353 | Pad_gge19353 | Pad_gge19353 |
| 1 | Pad_gge19356 | Pad_gge19356 | Pad_gge19356 |
| 1 | Pad_gge19359 | Pad_gge19359 | Pad_gge19359 |
| 1 | SC8002B | SOP-8_L4.9-W3.9-P1.27-LS6.0-BL | U5 |
| 1 | TF-CARD H1.8 | TF-SMD_TF-CARD-H1.8 | TF1 |
| 1 | W25Q32JVSSIQ | SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL | U4 |
| 1 | XPT2046 | TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL | U3 |
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Questions
How big is the CYD NMEA PCB?
It measures 86 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CYD NMEA use?
76 parts, built around the CH340C, ESP32-WROOM-32, SC8002B and W25Q32JVSSIQ. 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 CYD NMEA KiCad files?
From the Mate8/NMEA-Tester repository on GitHub, at the commit this page was made from: the board is hardware/CYD 2.8''/CYD_NMEA.kicad_pcb and its schematic hardware/CYD 2.8''/CYD_NMEA.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CYD NMEA design in my own project?
Its repository states no licence, so its author keeps all rights: ask Mate8 before reusing the design.