Design For years, I had been running a home-brew weather station based on PIC microcontrollers, analog temperature and humidity sensors and a BME180 pressure sensor housed in a Stevenson Screen. It worked reliably for about 6 years, until a lightning storm near-hit cooked the electronics.
I decided that it would a great time for an upgrade. In addition to temperature, humidity and pressure, I also wanted to measure rainfall, wind speed, and wind direction.
A High Bandwidth Low Noise Optical VLF Link This is an article that I wrote which first appeared on Renato Romero’s website vlf.it.
It describes the design, characteristics and use of a high bandwidth, low noise optical system for connecting a VLF receiver to a data sampling system. This easy to build, inexpensive system has a flat response to over 200KHz, and a noise curve well below the VLF band.
These links connect to pages automatically generated from live VLF measurements and event captures.
VLF Band Level View SID 24 Hour Data SID 3 Day Data SID 7 Day Data Recent VLF Events (whistlers, etc)
