Bill Nye is plugging Rayton Solar, a startup that claims to be able to reduce the manufacturing cost of solar power modules by 60%. Is it real? They have already raised $3.5M in equity crowd funding.

How to connect and use the low cost ESP8266 WiFi module with the Arduino environment. How to connect with a Youtube API to retrieve channel statistics, using JSON on the Wemos D1 Mini. Nixie Tube Project Part 7 Forum HERE

Soldering the Nixie Tube display PCB. How to do drag and dab soldering to make surface mount parts soldering easy. Also a look at the Elecrow blank prototype PCB quality. Jump to 3:36 for the soldering tutorial Part 6 of the Nixie Tube project Forum HERE

What does the CE mark on a product actually mean? How do you get one? What is it NOT? What is a Declaration Of Conformity? There might more to this mark than you realised! The FCC mark is also discussed. Forum HERE Podcast: Download

Dave shows how to do power supply MOSFET rail switching and demonstrates and discusses why supply sequencing might be needed. Forum HERE Podcast: Download