Improve documentation.

README.md

@@ -1 +1,55 @@
-# TFGPSLITE01
+# TFGPSLITE02 - 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"](https://github.com/pixhawk/Pixhawk-Standards/blob/master/DS-009%20Pixhawk%20Connector%20Standard.pdf).
+
+
+![TFGPSLITE02 top view](doc/gen/img/TFGPSLITE02-top.png)
+
+![TFGPSLITE02 bottom view](doc/gen/img/TFGPSLITE02-bottom.png)
+
+## Features
+
+- **GNSS Support**: Concurrent reception of up to three GNSS systems (GPS, Galileo, GLONASS).
+- **Compact Design**: Compact form factor (15.5 x 15.5 x 6.3 mm) 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) even 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 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.
+
+## 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     |
+
+

hw/sch_pcb/TFGPSLITE02.kicad_pro

@@ -446,7 +446,7 @@
     "pinned_symbol_libs": []
   },
   "meta": {
-    "filename": "TFGPSLITE01.kicad_pro",
+    "filename": "TFGPSLITE02.kicad_pro",
     "version": 1
   },
   "net_settings": {
@@ -664,7 +664,7 @@
   "sheets": [
     [
       "ad3de673-2c6f-49c5-bb76-b63aef50b486",
-      "Hlavní"
+      "Root"
     ]
   ],
   "text_variables": {}

hw/sch_pcb/TFGPSLITE02.kicad_sch

@@ -5200,7 +5200,7 @@
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+		(property "Datasheet" "https://content.u-blox.com/sites/default/files/documents/SAM-M8Q_DataSheet_UBX-16012619.pdf"
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