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ADSBexchange.com Blue R820T2 RTL2832U, 0.5 PPM TCXO ADS-B SDR w/Amp and 1090 Mhz Filter, Antenna, & Software on Industrial MicroSD

A specialized ADS-B Software Defined Radio (SDR) kit designed for aircraft tracking using a Raspberry Pi. This blue R820T2 RTL2832U model features high stability with 0.5 PPM TCXO to prevent frequency drift and includes an onboard 1090 MHz filter and amplifier for enhanced signal range. The package comes with a purpose-built 8 inch 5 dBi antenna, an aluminum heat-dissipating case, and industrial-grade microSD software pre-loaded for easy setup via web browser without command line work.
Key features:
- Plug-and-play configuration via WiFi/web browser
- Integrated 1090 MHz filter and amplifier
- High-reliability industrial grade microSD card
- Aluminum case for heat dissipation and interference reduction
- Drop-in replacement for FlightAware Pro Stick Plus

2026-04-25 Tags: ads-b, sdr, aircraft tracking, rtl2832u, r820t2, tcxo, usb, hardware, ecommerce, ham radio by klotz

Nocturne - Your Car Thing's Second Chapter

Nocturne is a community-driven open-source project that brings new life to the Spotify Car Thing after Spotify ended support. It offers features like free and open-source software, easy setup, flexibility for desk or car use, and a stable and actively updated experience.

2025-10-31 Tags: car thing, spotify, open source, firmware, mod, community, nocturne, usb, flash by klotz

ESP32 Hosts A USB Keyboard In This Typewriter

Volos uses the ESP32 microcontroller's USB host capabilities to build a word processor that interfaces with a USB keyboard, showcasing the chip's potential for complex USB tricks.

2024-11-17 Tags: esp32, usb, keyboard, hid, unnamed vfd by klotz

Multi-function USB Dongle based on ESP32-S3

This article presents a solution for efficient data transfer with the Multi-function USB Dongle based on ESP32-S3, highlighting its applications in exporting camera photos, printing files, and sharing videos.

2024-10-31 Tags: esp32-s3, usb dongle, documents, wifi, espressif, hacks, usb by klotz

PicoUSB Public Repository

Repository for PicoUSB - RP2040 based, easy to use and learn - bad USB

2024-07-07 Tags: picousb, rp2040, micropython, usb, hacks, hardware, ecommerce github, foss by klotz

Human-Interfacing Devices: HID Over I2C | Hackaday

Discusses HID over I2C, an underappreciated HID standard used in laptops.
Explains that I2C-HID is used for touchpads, touchscreens, and sensor hubs.
Distinguishes I2C-HID from non-HID I2C devices and explains its benefits.
Describes the author's experience with using I2C-HID for a laptop touchpad project.