#!/usr/bin/env python # -*- coding: utf-8 -*- # GUI for battery on Neo Freerunner # written by HdR # contributions by # battery status icons made by Kore Nordmann # start icon from tango icons # # ! this script comes with explicit no warranty ! # ! Trying to draw more current than the USB charger is rated for leads to overheating # ! This is dangerous and can lead to fire # ! Use at your own risk # # License: GPL version ??? import gobject,gtk import os class BatteryGUI: charger_type = "/sys/class/i2c-adapter/i2c-0/0-0073/charger_type" capacity = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/capacity" chargefull = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/charge_full" voltage = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/voltage_now" current = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/current_now" status = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/status" temp = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/temp" timetofull = "/sys/devices/platform/bq27000-battery.0/power_supply/bat/time_to_full_now" timetoempty= "/sys/devices/platform/bq27000-battery.0/power_supply/bat/time_to_empty_now" image_dir = "/usr/share/battery/" usb_limit = "/sys/class/i2c-adapter/i2c-0/0-0073/force_usb_limit_dangerous" #charger_type = "charger_type" #capacity = "capacity" #voltage = "voltage" #status = "status" #image_dir = "./" def delete_event(self, widget, event=None, data=None): gtk.main_quit() return False # Check the amperage def check_type(self): self.f = open(self.charger_type, 'r') self.type = self.f.readline().rstrip('\n') self.f.close() try: self.charger = self.type.split(" ")[3] except: return False if (self.charger == '1A'): self.amperage = 1000; elif (self.charger == '500mA'): self.amperage = 500; elif (self.charger == '100mA'): self.amperage = 100; else: self.amperage = False; return (self.amperage) # Check battery capacity percentage now def check_capacity(self): self.f = open(self.capacity, 'r') self.q = self.f.readline().rstrip('\n') self.f.close() return (int(self.q)) # Check battery full charge capacity def check_chargefull(self): self.f = open(self.chargefull, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q / 1000000; return (self.v) # Check battery voltage def check_voltage(self): self.f = open(self.voltage, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q/1000000; return (self.v) # Check battery current def check_current(self): self.f = open(self.current, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q/1000; return (self.v) # Check battery temperature def check_temp(self): self.f = open(self.temp, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q/10; return (self.v) # Check status (Charging/Discharging) def check_status(self): self.f = open(self.status, 'r') self.q = self.f.readline().rstrip('\n') self.f.close() return(self.q) # Check the time to full def check_timetofull(self): self.f = open(self.timetofull, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q/60; return (self.v) # Check the time to empty def check_timetoempty(self): self.f = open(self.timetoempty, 'r') self.q = float(self.f.readline().rstrip('\n')) self.f.close() self.v = self.q/60; return (self.v) # Set the load amperage manually def set_charge_limit(self, button, limit): if (self.check_type()): os.system("echo %d > %s" % (limit,self.usb_limit)) return True # Update the energy left label def update_capacity(self, label, image): cap = self.check_capacity() capAh = self.check_chargefull() * cap / 100 label.set_text ("Energy left: %d%% %.2f Ah" % (cap, capAh)) if (cap <= 5): image.set_from_file(self.image_dir+"battery_stat_00.png") elif (cap <= 20): image.set_from_file(self.image_dir+"battery_stat_11.png") elif (cap <= 38): image.set_from_file(self.image_dir+"battery_stat_23.png") elif (cap <= 56): image.set_from_file(self.image_dir+"battery_stat_42.png") elif (cap <= 85): image.set_from_file(self.image_dir+"battery_stat_64.png") else: image.set_from_file(self.image_dir+"battery_stat_99.png") return True ## Update the capacity label #def update_chargefull(self, label): #fullcap = self.check_chargefull() #label.set_text ("Full charge: %.2f Ah" % fullcap) #return True # Update the charge label def update_charge(self, label): rate = self.check_type() if (rate): label.set_text ("Battery charging: %d mA" % rate) else: label.set_text ("Battery charging: %s" % self.check_status()) return True def update_temp(self, label): temp = self.check_temp() label.set_text ("Temperature: %.1f °C" % temp) return True def update_power(self, label): voltage = self.check_voltage() current = self.check_current() power = voltage * current label.set_text ("%.2f V %.1f mA %.0f mW" % (voltage, current, power)) return True def update_timeto(self, label): timetofull = self.check_timetofull() timetoempty = self.check_timetoempty() if ((timetofull > 0) and (timetofull < 65535)): label.set_text ("Time to full: %d mn / %.1f h" % (timetofull, timetofull/60)) elif ((timetoempty > 0) and (timetoempty < 65535)): label.set_text ("Autonomy: %d mn / %.1f h" % (timetoempty, timetoempty/60)) else: label.set_text ("-") return True # Gtk GUI def __init__(self): # init main window self.win = gtk.Window(gtk.WINDOW_TOPLEVEL) self.win.connect("delete_event", self.delete_event) # add a VBox self.vbox = gtk.VBox(homogeneous=False, spacing=5) self.win.add(self.vbox) self.vbox.show() # add a HBox self.hbox0 = gtk.HBox() self.vbox.pack_start(self.hbox0) self.hbox0.show() # Add a Image self.stat_image = gtk.Image() self.stat_image.set_from_file(self.image_dir+"battery_stat_01.png") self.hbox0.pack_start(self.stat_image) self.stat_image.show() # Add a Vbox for info labels self.vbox1 = gtk.VBox() self.hbox0.pack_start(self.vbox1) self.vbox1.show() # Add Capacity label self.capacity_label = gtk.Label("Energy left: checking") self.vbox1.pack_start(self.capacity_label) self.capacity_label.show() gobject.timeout_add (2000, self.update_capacity, self.capacity_label, self.stat_image) # Add temperature label self.temp_label = gtk.Label("Temperature: checking") self.vbox1.pack_start(self.temp_label) self.temp_label.show() gobject.timeout_add (4000, self.update_temp, self.temp_label) # Add chargelevel label self.charge_label = gtk.Label("Battery charging: checking") self.vbox1.pack_start(self.charge_label) self.charge_label.show() gobject.timeout_add (2000, self.update_charge, self.charge_label) # Add timeto label self.timeto_label = gtk.Label("Time to: checking") self.vbox1.pack_start(self.timeto_label) self.timeto_label.show() gobject.timeout_add (2000, self.update_timeto, self.timeto_label) # Add power label self.power_label = gtk.Label("Power: checking") self.vbox1.pack_start(self.power_label) self.power_label.show() gobject.timeout_add (2000, self.update_power, self.power_label) ## Add Full charge label #self.chargefull_label = gtk.Label("Full charge: checking") #self.vbox1.pack_start(self.chargefull_label) #self.chargefull_label.show() #gobject.timeout_add (10000, self.update_chargefull, self.chargefull_label) # Add HBox for buttons self.hbox1 = gtk.HBox(homogeneous=False, spacing=5) self.vbox.pack_start(self.hbox1) self.hbox1.show() # Add button for 100mA self.button_100 = gtk.Button("Charge at\n100mA") self.hbox1.pack_start(self.button_100) self.button_100.connect("clicked", self.set_charge_limit, 100) self.button_100.show() # Add button for 500mA self.button_500 = gtk.Button("Charge at\n500mA") self.hbox1.pack_start(self.button_500) self.button_500.connect("clicked", self.set_charge_limit, 500) self.button_500.show() # add button for 1000mA self.button_1000 = gtk.Button("Charge at\n1000mA") self.hbox1.pack_start(self.button_1000) self.button_1000.connect("clicked", self.set_charge_limit, 1000) self.button_1000.show() # add exit button self.button_exit = gtk.Button("Close") self.vbox.pack_start(self.button_exit) self.button_exit.connect("clicked", self.delete_event) self.button_exit.show() # show main window self.win.show() def main(self): gtk.main() if __name__ == '__main__': gui = BatteryGUI() gui.main()