2 layers70.6 × 50.3 mm
TFUNIPAYLOAD01
ThunderFly-aerospace/TFUNIPAYLOAD01
Universal interface for TF-ATMON sensor payload.
81 parts1GPL-3.0
2 layers50 × 50 mm
TFGPSLITE02
ThunderFly-aerospace/TFGPSLITE02Compact GNSS Module for Lightweight UAVs
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 22
- Pads
- 161
- Tracks, vias
- 104, 115
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 7 Nov 2024
- Updated
- 6 Feb 2025
Overview
TFGPSLITE02 is an open-source printed circuit board by ThunderFly-aerospace, from the ThunderFly-aerospace/TFGPSLITE02 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 50 × 50 mm with 27 parts on 22 nets, routed with 104 tracks and 115 vias.
It is built around the MIC5504-3.3YM5, SAM-M8Q-0 and BZX585-B5V6,115-JSM, with the SM04B-GHS-TB and SM06B-GHS-TB among its other parts. Its parts include 11 resistors, 5 capacitors, 3 diodes, 2 ICs and 2 connectors. It belongs with the radio and wireless boards of this library.
Main components
5
MIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed 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
SAM-M8Q-0
SMD-20P,15x15mmUncategorisedu-blox
BZX585-B5V6,115-JSM
SOD-523SOD-523 Zener Diodes ROHSJSMSEMIZener Diodes
SM04B-GHS-TB
SMD,P=1.25mm,卧贴-25℃~+85℃ 1 1.25mm 1A 1x4P 4 4.13mm 4.25mm 4P 50V 8.25mm Auxiliary Solder Pin GH PA9T Phosphor bronze Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1.25mm,卧贴 Wire To Board Connector ROHSJSTWire To Board Connector
SM06B-GHS-TB
SMD,P=1.25mm,卧贴-25℃~+85℃ 1 1.25mm 10.75mm 1A 1x6P 4.13mm 4.25mm 50V 6 6P Auxiliary Solder Pin GH PA9T Phosphor bronze Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1.25mm,Surface Mount，Right Angle Wire To Board Connector ROHSJSTWire To Board Connector
README
README.mdTFGPSLITE02 - Compact GNSS Module for Lightweight UAVs
The TFGPSLITE02 module is a compact GNSS solution based on the u-blox SAM-M8Q. It is designed for small, lightweight, and simple UAVs, offering excellent positioning accuracy with support for multiple satellite constellations. It connects seamlessly to flight controllers via the Pixhawk standard "Basic GPS Port".
Features
- GNSS Support: Concurrent reception of up to three GNSS systems (GPS, Galileo, GLONASS).
- Compact Design: Compact flat form factor with integrated patch antenna.
- High Sensitivity: Superior performance in environments with weak or obstructed GNSS signals.
- Augmentation Systems: Support for SBAS (WAAS, EGNOS, MSAS, GAGAN) and QZSS.
- Advanced Security:
- Geofencing for operational boundaries.
- Spoofing detection to enhance signal integrity.
- Message integrity protection.
- Wide Operational Range:
- Altitude: Up to 50,000 m.
- Velocity: Up to 500 m/s.
- Dynamic tolerance: Up to 4 g.
- Built-in RTC: Ensures faster Time-To-First-Fix (TTFF) after prolonged power-off periods.
Technical Specifications
- Interfaces:
- UART and I2C (via Basic GPS Port).
- Time pulse output (1 PPS, configurable up to 10 MHz).
- Power Supply:
- Main supply voltage: 5 V.
- Typical current consumption is 30 mA.
- GNSS Performance:
- Cold start TTFF: 26 s (GPS).
- Hot start TTFF: 1 s.
- Horizontal position accuracy: 2.5 m CEP.
- Environmental Tolerances:
- Operating temperature: -40 °C to 85 °C.
- Storage temperature: -40 °C to 85 °C.
- Physical properties:
- Dimensions 50x50x8mm
- Weight 11.3 grams
Connection to Flight Controller
The module interfaces with flight controllers using the Pixhawk standard Basic GPS Port. The port pinout is as follows:
| Pin | Signal | Voltage |
|---|---|---|
| 1 | VCC | +5V |
| 2 | TX (OUT) | +3.3V |
| 3 | RX (IN) | +3.3V |
| 4 | I2C SCL | +3.3V |
| 5 | I2C SDA | +3.3V |
| 6 | GND | GND |
Connection to payload
The module interfaces with the payload with the following signals:
| Pin | Signal | Voltage |
|---|---|---|
| 1 | VCC | +5V |
| 2 | EXTINT (IN) | +3.3V |
| 3 | TPL (OUT) | +3.3V |
| 4 | GND | GND |
Where to get it?
The TFGPSLITE02 is commercially available from ThunderFly s.r.o.. For a commercial quotation, contact us by email at sale@thunderfly.cz or shop at our Tindie store.
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 220R | Resistor_SMD:R_0805_2012Metric | R2, R3, R5, R6, R9, R10 |
| 4 | HOLE | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | M1, M2, M3, M4 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5 |
| 3 | R_Small | Resistor_SMD:R_0805_2012Metric | R1, R7, R8 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R4, R11 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | BZX585-B5V6.115 | Diode_SMD:D_SOD-523 | D1 |
| 1 | C | Resistor_SMD:R_1206_3216Metric | C2 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | SAM-M8Q | RF_GPS:ublox_SAM-M8Q | U2 |
| 1 | SM04B-GHS-TB | Connector_JST:JST_GH_SM04B-GHS-TB_1x04-1MP_P1.25mm_Horizontal | J2 |
| 1 | SM06B-GHS-TB | Connector_JST:JST_GH_SM06B-GHS-TB_1x06-1MP_P1.25mm_Horizontal | J1 |
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Questions
How big is the TFGPSLITE02 PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TFGPSLITE02 use?
27 parts, built around the MIC5504-3.3YM5, SAM-M8Q-0, BZX585-B5V6,115-JSM and SM04B-GHS-TB. 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 TFGPSLITE02 KiCad files?
From the ThunderFly-aerospace/TFGPSLITE02 repository on GitHub, at the commit this page was made from: the board is hw/sch_pcb/TFGPSLITE02.kicad_pcb and its schematic hw/sch_pcb/TFGPSLITE02.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TFGPSLITE02 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).