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by Northland
Tue May 31, 2016 6:05 am
Forum: Python
Topic: How to use this code
Replies: 4
Views: 1734

How to use this code

I have a solar inverter and some nice person shared his code: import urllib2 import serial, time import sqlite3 import json import urllib import datetime import calendar import os os_env = os.environ APP_DIR = os.path.abspath(os.path.dirname(__file__)) # This directory PROJECT_ROOT = os.path.abspath...
by Northland
Sat May 21, 2016 10:27 pm
Forum: Automation, sensing and robotics
Topic: Photovoltaic/solar systems monitoring
Replies: 124
Views: 72060

Re: Photovoltaic/solar systems monitoring

Anyone have the code to request data from a mpp product and read the response?
by Northland
Mon May 09, 2016 4:54 am
Forum: General discussion
Topic: temperature sensor for water heater
Replies: 4
Views: 1207

Re: temperature sensor for water heater

I thought some were digital so distance is irrelevant?
by Northland
Sun May 08, 2016 7:05 am
Forum: General discussion
Topic: temperature sensor for water heater
Replies: 4
Views: 1207

temperature sensor for water heater

Recommendations please for a temperature sensor. It will be in contact with the outside of a copper tank with insulation over the top. It will be 30m from the pi. Range 40-80 degrees Celsius but down to maybe 10 would be a bonus. Important : easiest to code (python)

Thanks
by Northland
Sat May 07, 2016 9:37 am
Forum: General programming discussion
Topic: PIP-4048MS
Replies: 0
Views: 709

PIP-4048MS

anyone have an interface for this inverter or any other MPP solar product?
by Northland
Sat May 07, 2016 9:33 am
Forum: Advanced users
Topic: Read solar charger through RS232 (MPP solar PCM-6048)
Replies: 2
Views: 2286

Re: Read solar charger through RS232 (MPP solar PCM-6048)

Any luck?
I have a pip-4048ms
by Northland
Sat May 07, 2016 9:15 am
Forum: Beginners
Topic: Detecting Electric Current
Replies: 34
Views: 5812

Re: Detecting Electric Current

http://s.aliexpress.com/yYZ7VZbm

I use one of these to control my element. I bypass the varistor and use relays to provide different resistances
by Northland
Fri May 06, 2016 9:46 am
Forum: General programming discussion
Topic: coding for solar system
Replies: 2
Views: 795

coding for solar system

I have a small project requiring a little help. I know nothing about pi coding but have done a little coding a long time ago so I will assign symbols and make arguments as I go. I have a solar system including batteries. One of the things running off the inverter is a water heater. 1. The water heat...

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