Using my nifty Hakko soldering iron, putting headers on components is simple and quick
Using my nifty Hakko soldering iron, putting headers on components is simple and quick
Picture of Arnd

Arnd

2016 Trip 2016-04-13

After puttering about with various incarnations of my Zanshin energy monitor with different Atmel processors and components, I finally decided that I’d played enough and started cobbling together a version that I could use non-stop for a couple of weeks to gather data.

This consists of:

Arduino ATMegaI have one of these and decided to use it for this project, as it has several hardware serial ports and I’d had issues getting the Arduino “SoftwareSerial” library to work correctly
Bosch BME280 SensorThis little chip measures the ambient temperature, pressure and humidity. I don’t know what I’m going to do with the humidity, but I’m storing the values in any case
GPS ModuleThis chip outputs the latitude and longitude coordinates as well as the GPS altitude
EEPROM MemoryThe ATMega processor doesn’t have a huge amount of memory to buffer the readings, so I’ve added a 8Kbit EEPROM
Micro SD-CardThis is where all the bulk data goes, one CSV file per calendar day
Realtime ClockThis part was necessary to keep the wall-clock time until I opted to add the GPS unit, which is also a very accurate clock
Power RegulatorTakes 12V from the boat auxiliary bank and converts it to a regulated 5V power supply
Bluefruit BluetoothAdded so that I can query the logfiles directly from my PC without having to use wires. Optionally, I can also reprogram the logger using this interface
Reference 2.048VUltra-accurate reference voltage used for the Analog-Digital conversion of the solar panel charging current

My old hosting company, who will remain unnamed although their name starts with “go” and the end rhymes with “baddy”, changed their software with little notice and the original SV-ZANSHIN.COM site stopped working overnight. 

Every.  Single.  Page. 

 

So I’ve transitioned to another provider. These original pages have been migrated, but all the formatting and other features are gone and the will still contain numerous display issues and formatting anomalies. 

The manual effort of conversion is too much and not worth the effort involved. Over 1000 blog diary pages like this one are going to remain in this condition. The pictures are full-scale, but won’t expand when clicked. But you can can copy them to view them in their original splendour.