RAC's notepad

Project entry for the MakeZurich 2018 Hackathon. A delivery box which monitors the environment of it’s content and send an alarm via LoRaWAN in case a threshold breach gets detected.

You received your MakeZurich vol. II participants badge and want to know more about it?

While working on the badge design for MakeZurich 2018, I had the need to first make a breakout for the NINA-W102 we got from ublox to see what is possible, do some tryouts with different components like the display and start developing drivers and firmware we need for it. This is the outcome of it and as we did go on with the badge design, we switched from having a single-board badge to a modular badge where the modules can be reused standalone in a project. Hence on the final badge design you can reuse the display and the NINA-W102 module in your hacks and with a little bit of desoldering you can reuse the sensor module (which we got from Sensirion) as well.

PWA (Progressive Web Apps) are pretty cool for certain use cases like users having flaky connections (e.g. from mobiles) or just to reduce the initial loading time (after the first visit to the page). I document my exercise adding offline capability to a small single page site with no frequent updates that I built with Hugo and the Dimension theme.

This are all the steps needed to deploy your static Hugo page on Firebase for free (until you exceed the traffic of the free tier a.k.a Spark plan).

In order to display the last updated timestamp of a page, I had to set EnableGitInfo to true in the config.toml but this caused CI on wercker to fail as soon as I did a git push.

Project entry for the MakeZurich 2017 Hackathon.

A cheap and portable bike commuter flow counter node to enhance the existing sensor network. This will also be helpful to quickly bring up nodes at the right place to evaluate new routes and how they are used.

This Arduino library can be used to interface the SDP3x differential pressure sensor from Sensirion over I2C to get the pressure difference and the temperature reading it exposes.

Some GIT commands I use and wanted to note for my own reference in case I don’t use it anymore for some time and can’t remember ;-)

Howto find world writable files that could be attacked on your server?