Total Yield Day Power (OpenDTU)

# @name PV Power (OpenDTU)
# @desc Current PV output via OpenDTU local API
# @author olimans (fork simpi)
# @version 1.0

class PV
  # IP Address or Hostname (ex: "192.168.1.50")
  var dtuHost
  var power, ticks, age

  def init()
    self.dtuHost = "192.168.0.141" # <-- OPENDTU IP Address
    self.power = store.get("power")
    self.ticks = 0
    self.age = 9999
  end

  def on_body(w, status)
    if w == nil return end
    # Extract JSON OpenDTU
    var m = re.search("\"YieldDay\":\\{\"v\":([-0-9.]+)", w)
    if m == nil return end
    var w_val = num(m[1])
    if w_val == nil return end
    
    # Value in Wh
    self.power = w_val
    self.age = 0
    store.set("power", self.power)
  end

  def loop()
    self.age += 1
    if self.ticks <= 0
      self.ticks = 120 # Update every 120 secondes
      http.get("http://" + self.dtuHost + "/api/livedata/status",
               / b, st -> self.on_body(b, st),
               {'find': "\"YieldDay\":", 'keep': 300})
    end
    self.ticks -= 1
  end

  def draw()
    clear()
    if self.power == nil
      text(6, 6, "...", 0x666666)
      return
    end

    var p = self.power
    var label, col

    if p < 1
      label = "0Wh"
      col = 0x666666
    elif p < 500
      label = str(int(p)) + "Wh"
      col = 0xFF7A27
    elif p < 3000
      var kw = p / 1000.0
      label = str(int(kw)) + "." + str(int((kw - int(kw)) * 10)) + "kWh"
      col = 0xFFCC00
    elif p < 5000
      var kw = p / 1000.0
      label = str(int(kw)) + "." + str(int((kw - int(kw)) * 10)) + "kWh"
      col = 0xFFFF28
    else
      var kw = p / 1000.0
      label = str(int(kw)) + "." + str(int((kw - int(kw)) * 10)) + "kWh"
      col = 0x6ED228
    end

    # Petit soleil à gauche (icône)
    circle_fill(4, 4, 3, 0xFFCC00)

    text(9 + int((22 - text_ink_width(label)) / 2), 7, label, col)

    # Si pas de donnée fraîche depuis plus de 10 minutes, affiche un pixel rouge d'erreur
    if self.age > 600
      pixel(width() - 1, height() - 1, 0xFF0000)
    end
  end

  def on_button(btn)
    if btn == "select" self.ticks = 0 end
  end
end

return PV()