Bitbar plugin for live stats for solar power generation and EV charging in Culemborg

kWp.30s.rb

#!/usr/bin/env ruby
#BitBar Metadata
# <bitbar.title>Power generation and supply to chargers</bitbar.title>
# <bitbar.version>v0.1</bitbar.version>
# <bitbar.author>Erik de Bruijn</bitbar.author>
# <bitbar.author.github>Erik de Bruijn</bitbar.author.github>
# <bitbar.desc>Displays the power output of the solar array and supply to the charging stations.</bitbar.desc>

require 'net/http'
require 'uri'
require 'json'

def fetch_from_pi
  url1 = "https://d83001ea56a0e97eb94c603211f6b38f.balena-devices.com/node-red/powerNow"
  JSON.parse(Net::HTTP.get(URI(url1)))
rescue
  nil
end
last_update_time, pac, pdc, uac, udc, yield_day, yield_yesterday, yield_month, yield_year, yield_total, cons_pac, cons_yield_day, cons_yield_yesterday, cons_yield_month, cons_yield_year, cons_yield_total, total_power, * = fetch_from_pi.values

puts "☀️️️ #{(pac/1000).round(1)} kW (#{(yield_day/1000).round} kWh) 🚗 #{(cons_pac/1000).round(1)} kW (#{(yield_yesterday/1000).round} kWh)"
puts "---"
puts "DC: #{(pdc/1000).round(1)} kW"
puts "Yield: #{(yield_day/1000).round} kWh today, #{(yield_yesterday/1000).round} kWh yesterday"
puts "Consumption: #{(cons_yield_day/1000).round} kWh today, #{(cons_yield_yesterday/1000).round} kWh yesterday"
puts "Last updated #{last_update_time}"
puts "Show details | href=https://d83001ea56a0e97eb94c603211f6b38f.balena-devices.com/"