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+# LilyGo-T3S3-LCD-ShellySender
+
+Simple LoRa button transmitter for the LilyGo T3S3 SX1262 with OLED display.
+
+## Features
+
+- One-button ON/OF toggle
+- LoRa packet transmission
+- OLED status screen
+- Transmission counter
+- Configurable RF profiles
+
+## Hardware
+
+- LilyGo T3S3 SX1262
+- SSD1306 OLED 128x64
+- Built-in button (GPIO0)
+
+## Payload Format
+
+```text
+MG64738|ON
+MG64738|OF
+```
+
+## RF Profiles
+
+### Shelly RF
+
+- 865.000 MHz
+- BW 125 kHz
+- SF12
+- CR 4/5
+- Sync Word 0x12
+
+### MeshCore Switzerland
+
+Available in source code as alternative profile.
+
+## Display
+
+Status screen:
+- Frequency
+- Bandwidth
+- Spreading Factor
+- Coding Rate
+- Sync Word
+- Transmission counter
+- Current payload
+
+Transmit screen:
+- Sending status
+- Payload
+- Result
+
+## Library
+
+- RadioLib
+- Adafruit SSD1306
+- Adafruit GFX
+
+## Platform
+
+PlatformIO / ESP32-S3