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USB-C Deskradar: ESP32-C3 ADS-B Flight Tracker with 1.28-Inch Round Display

USB-C Deskradar: A Compact Flight Tracker with Real-Time Radar Visualization
The USB-C Deskradar is a compact, aviation-themed flight tracking device built around the ESP32-C3 microcontroller. Designed to display live aircraft positions on a sonar-style circular grid, it features a 1.28-inch round TFT color display housed within a custom 3D-printed enclosure. This device offers real-time visualization of flights near a user-defined location, making it a distinctive desktop gadget for aviation enthusiasts seeking an accessible and interactive way to monitor air traffic.
Design and Technical Specifications
At its core, the Deskradar utilizes the Espressif Systems ESP32-C3FH4 processor, a single-core 32-bit RISC-V chip running at up to 160 MHz, supported by 400 KB of SRAM and 4 MB of flash memory. Wireless connectivity is provided through a 16-pin ESP32-C3 Super Mini module. The display is a 1.28-inch round TFT LCD with a 240×240 resolution, controlled by the GC9A01 driver and interfaced via SPI. Power and programming are facilitated through a USB Type-C port, while a ceramic antenna ensures reliable signal reception.
User interaction is managed through a hardware button that cycles through radar range presets and resets Wi-Fi or location credentials. The device is encased in a custom 3D-printed housing, with STL files freely available for enthusiasts interested in fabricating their own cases. It operates on a 5V supply delivered via USB Type-C.
The Deskradar’s software suite handles flight tracking, radar visualization, and device configuration. It retrieves live ADS-B flight data from sources such as adsb.fi and the OpenSky Network, presenting aircraft information including heading, speed, callsign, altitude, and type on a dark blue radar interface. Additional features include runway overlays for major airports, a Wi-Fi manager with a captive portal, and customizable settings for location and distance units.
Open-Source Origins and Commercial Availability
Initially developed as an open-source project, the Deskradar has since been adopted by Chinese vendors and is commercially available on platforms like AliExpress for approximately $27. The hardware closely aligns with two prominent GitHub repositories—arvis91/deskradar and MatixYo/ESP32-Plane-Radar—though the firmware implemented in commercial units remains unspecified. Both open-source versions support frequent updates of flight data, refreshing every five seconds via adsb.fi or through the OpenSky Network API, and enable browser-based firmware flashing using esptool-js.
For do-it-yourself enthusiasts, assembling a Deskradar can cost under $10 by sourcing an ESP32-C3 Super Mini and a compatible 1.28-inch round display. The device also supports alternative development boards such as the ESP32-2424S012 or Makerfabs ESP32-S3 Round SPI TFT with minor firmware adjustments. Free 3D-printable case files are accessible through MakerWorld, facilitating customization and personal fabrication.
Compatibility Considerations and Market Context
The Deskradar’s reliance on USB-C for both power and programming necessitates strict adherence to USB-C standards to ensure broad compatibility. Users may encounter driver-related challenges, particularly when integrating the device into multi-monitor setups or utilizing advanced USB-C features. The market increasingly favors plug-and-play USB-C devices that operate without additional drivers, exemplified by products like Plugable’s USB-C docking station.
Competitors are likely to enhance their USB-C offerings by focusing on multi-display support and advanced charging capabilities, as seen in devices such as the Werewolf VFLEX dongle. The Deskradar’s market success will depend on its ability to provide a seamless user experience free from compatibility issues, positioning it as both an affordable and innovative addition to the expanding ecosystem of USB-C desktop gadgets.

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