I do not count the time I looked at Bitcoin in the past since about 2011-2012. Every time I started thinking about mining there was an investment to do (like GPU, then ASIC) and I never trust enough this money to make this investment. So as a consequence I never jump into this techno by the past, more than to understand how it works and learn.
Now Bitcoin in reaching some unexpected peaks ( > 15,000€ ) and it really looks like a bubble everyone is talking about, so as a mad man, I through it was the perfect time to start playing with this money. Trust me, as a guy who started investing in Internet technologies in 2001, you may never follow me on such decision !
Starting playing with this was an interesting learning opportunity, so this post will relate this experience and the different things I found in the bitcoin ecosystem.
When creating an API you can manage a “session” with a JWT Json Web Tokens ensuring the user has login previously.
Sigfox just released publicly its Radio Signal Analyzer tool. This is a tool for the device & module maker to prepare the P1 certification : basically it checks the radio signal shape, power… and tell you if you are following the requirements.
Sigfox is a LPWA network using the free radio frequency to communicate. There radio frequencies are changing in the different zone (Europe, America, Asia…) When you are developing a device you need to test it but you are not authorized to use all these frequency from the country you are.