unsurv offline

An open source, privacy friendly, compact GNSS receiver with ESP32 and NFC for all your location based projects, including tracking surveillance cameras

Available for pre-order

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Dec 04, 2023

Final Preparations Are Taking Place

Hi all, I am currently working through the last steps before the production run. Let me get you up to date on the current developments. Read the full update.

May 18, 2023

Battery Charger Components and Current Production Timeline

I want to give you an update on the current production timeline. After all, the campaign conclusion was at the start of 2022. So let me try to explain why there is still no parcel at your door with a tiny NFC capable GNSS receiver. Read the full update.

Apr 17, 2023

Adding New Documentation

Hi all, I have setup a readthedocs for the unsurv project and more specifically unsurv-offline. Over the coming weeks you can expect multiple campaign updates, each adding to the permanent documentation available at readthedocs. Read the full update.

Aug 01, 2022

New Design and Delivery Schedule

I come with good news and, as always in these times, some mixed news. The good news: I have completed the PCB review, changed the PCB stackup and rerouted all components. Bad news: I received additional info from Mouser that two more parts of the device are being delayed. Both of them are in the circuit responsible for power switching between 5 V USB and the battery. The upside here is, that it's better to replace them with a single IC anyway. Read the full update.

Apr 26, 2022

Component Lead Times and Next Steps

This time I bring mixed news. Although I planned ahead and ordered parts as soon as I could reasonably expect the campaign to end successfully, the chip shortage curse has struck this project. The good news is: it only concerns the dipswitch for the USB to UART IC and a diode controlling power when switching between USB and battery as a source. Read the full update.

Feb 23, 2022

Sourcing Components, Updated PCB Design

Although sourcing components is still difficult in 2022, just as it was last year, I have good news to start the year. Read the full update.

Jan 04, 2022

Unsurv Campaign Concludes

Our campaign ends soon. It's your last chance to get in on the first batch of unsurv offline! Read the full update.

Dec 29, 2021

Home stretch for the unsurv campaign

Just a quick note to let you all know I am giving a talk at the remote Chaos Computer Congress in Germany on Thursday, December 30th. And a plea to help us find the last few backers we need to conclude our campaign successfully. Read the full update.

Dec 21, 2021

Unsurv's Companion Android App

The update this week is about new features of the companion Android app which lets you interface with your unsurv offline. Read the full update.

Dec 15, 2021

Offline Syncing with Unsurv

This update re-focuses on how to use unsurv offline. You'll learn how to automatically synchronize offline any kind of data on your unsurv using a small home-grown server running on a Raspberry Pi. Read the full update.

Dec 13, 2021

The How, What, and Why of Unsurv

This update is about the general goals of the unsurv framework and what kinds of technologies it uses to better understand offline surveillance. Read the full update.

Dec 01, 2021

Making a fitness tracker with unsurv

Welcome to the first weekly update about unsurv offline. Over the coming weeks you will learn what inspired this project, how to improve data on OpenStreetMap, and how to automatically synchronize data from unsurv offline to a small, homemade server. First up though: a custom fitness tracker. Read the full update.

Nov 23, 2021

We are now Live!

An open source, privacy friendly, compact GNSS receiver with ESP32 and NFC for all your location based projects, including tracking surveillance cameras Read the full update.

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