Summary of OPEN SOURCE UNSURV OFFLINE FEATURES ESP32, GNSS
Unsurv is a compact, privacy-focused PCB (43 × 32 mm) featuring an ESP32, GNSS receiver, NFC, microSD support with OpenStreetMap data, and a BMA400 accelerometer. It pairs with a custom Android app to collect and analyze offline GNSS traces, offers NFC-based smartphone access, power-saving tap/double-tap input, and runs from a single-cell LiPo or USB power bank for extended use.
Parts used in the Unsurv:
- Custom PCB (43 mm x 32 mm)
- ESP32 microcontroller
- GNSS receiver module
- NFC tag/module (dynamic NFC Tag fitted into the case)
- BMA400 accelerometer
- microSD card slot (for OpenStreetMap data and traces)
- Single-cell LiPo battery connector
- USB power input (for USB power bank)
- Enclosure/case with NFC access
A campaign has been launched on Crowd supply for Unsurv, which is an offline privacy-friendly, small, lightweight PCB (43 mm x 32 mm) loaded with an ESP32, GNSS reciever and NFC capabilities. It functions by using a combination of OpenStreetMap data on the SD card, and a custom Android app, enabling you to gather GNSS data throughout the day, and easily analyzing it and using it later on. Speaking about Unsurv, the company says:
A campaign has been launched on Crowd supply for Unsurv, which is an offline privacy-friendly, small, lightweight PCB (43 mm x 32 mm) loaded with an ESP32, GNSS reciever and NFC capabilities. It functions by using a combination of OpenStreetMap data on the SD card, and a custom Android app, enabling you to gather GNSS data throughout the day, and easily analyzing it and using it later on. Speaking about Unsurv, the company says:
You can use Unsurv for a variety of other location-tracking functions, and you can access your Unsurv data easily via your smartphone and the dynamic NFC Tag which is fitted into the case. The Unsurv features a tiny BMA400 accelerometer which helps save precious battery capacity by managing power-saving features. It can even be adapted as an input device with tap and double-tap recognition. It is easy to use, just add a single cell LiPo battery, or USB power bank for more demanding tasks, and start gathering data. Unsurv is very efficient because, at the end of the day, most common Global Navigation Satellite System (GNSS) projects appear onto Unsurv offline, inclusive of surveillance cameras you would otherwise not notice.
Read more: OPEN SOURCE UNSURV OFFLINE FEATURES ESP32, GNSS
- What is Unsurv?
Unsurv is a small offline privacy-friendly PCB loaded with an ESP32, GNSS receiver, and NFC capabilities that collects and stores GNSS data with OpenStreetMap data on a microSD card. - How does Unsurv store map data?
Unsurv uses OpenStreetMap data stored on the microSD card. - Can I access Unsurv data with my phone?
Yes, you can access Unsurv data via your smartphone using the dynamic NFC Tag fitted into the case and a custom Android app. - What powers Unsurv?
Unsurv can be powered by a single-cell LiPo battery or a USB power bank. - Does Unsurv have sensors to save battery?
Yes, Unsurv includes a BMA400 accelerometer to help manage power-saving features and support tap and double-tap input. - Can Unsurv be used for other location-tracking functions?
Yes, Unsurv can be used for a variety of other location-tracking functions as described in the article. - Is Unsurv suitable for long-duration data collection?
Yes, using a USB power bank allows Unsurv to handle more demanding, longer-duration tasks.
