MicroPythonOS · ThomasFarstrike · Mar 11, 2026 · Mar 7, 2026 · Mar 7, 2026 · Mar 7, 2026
diff --git a/internal_filesystem/apps/cz.ucw.pavel.cellular/META-INF/MANIFEST.JSON b/internal_filesystem/apps/cz.ucw.pavel.cellular/META-INF/MANIFEST.JSON
@@ -0,0 +1,24 @@
+{
+"name": "Cellular",
+"publisher": "Pavel Machek",
+"short_description": "Application for placing phone calls",
+"long_description": "Simple application for monitoring network state and placing phone calls.",
+"icon_url": "https://apps.micropythonos.com/apps/cz.ucw.pavel.cellular/icons/cz.ucw.pavel.cellular_0.0.1_64x64.png",
+"download_url": "https://apps.micropythonos.com/apps/cz.ucw.pavel.cellular/mpks/cz.ucw.pavel.cellular_0.0.1.mpk",
+"fullname": "cz.ucw.pavel.cellular",
+"version": "0.0.1",
+"category": "utilities",
+"activities": [
+    {
+      "entrypoint": "assets/main.py",
+      "classname": "Main",
+      "intent_filters": [
+        {
+          "action": "main",
+          "category": "launcher"
+        }
+      ]
+    }
+  ]
+}
+
diff --git a/internal_filesystem/apps/cz.ucw.pavel.cellular/assets/main.py b/internal_filesystem/apps/cz.ucw.pavel.cellular/assets/main.py
@@ -0,0 +1,151 @@
+from mpos import Activity
+
+"""
+Simple cellular-network example
+"""
+
+import time
+import os
+import json
+
+try:
+    import lvgl as lv
+except ImportError:
+    pass
+
+from mpos import Activity, MposKeyboard
+
+TMP = "/tmp/cmd.json"
+
+
+def run_cmd_json(cmd):
+    rc = os.system(cmd + " > " + TMP)
+    if rc != 0:
+        raise RuntimeError("command failed")
+
+    with open(TMP, "r") as f:
+        data = f.read().strip()
+
+    return json.loads(data)
+
+def dbus_json(cmd):
+    return run_cmd_json("sudo /home/mobian/g/MicroPythonOS/internal_filesystem/apps/cz.ucw.pavel.cellular/assets/phone.py " + cmd)
+
+class CellularManager:
+    def init(self):
+        v = dbus_json("loc_on")
+
+    def poll(self):
+        v = dbus_json("signal")
+        print(v)
+        self.signal = v
+
+    def call(self, num):
+        v = dbus_json("call '%s'" % num)
+
+    def sms(self, num, text):
+        v = dbus_json("call '%s' '%s'" % (num, text))
+
+cm = CellularManager()
+
+# ------------------------------------------------------------
+# User interface
+# ------------------------------------------------------------
+
+class Main(Activity):
+
+    def __init__(self):
+        super().__init__()
+
+     # --------------------
+
+    def onCreate(self):
+        self.screen = lv.obj()
+        #self.screen.remove_flag(lv.obj.FLAG.SCROLLABLE)
+
+        # Top labels
+        self.lbl_time = lv.label(self.screen)
+        self.lbl_time.set_style_text_font(lv.font_montserrat_34, 0)
+        self.lbl_time.set_text("Startup...")
+        self.lbl_time.align(lv.ALIGN.TOP_LEFT, 6, 22)
+
+        self.lbl_date = lv.label(self.screen)
+        self.lbl_date.set_style_text_font(lv.font_montserrat_20, 0)
+        self.lbl_date.align_to(self.lbl_time, lv.ALIGN.OUT_BOTTOM_LEFT, 0, 5)
+        self.lbl_date.set_text("(details here?")
+
+        self.lbl_month = lv.label(self.screen)
+        self.lbl_month.set_style_text_font(lv.font_montserrat_20, 0)
+        self.lbl_month.align(lv.ALIGN.TOP_RIGHT, -6, 22)
+
+        self.number = lv.textarea(self.screen)
+        #self.number.set_accepted_chars("0123456789")
+        self.number.set_one_line(True)
+        self.number.set_style_text_font(lv.font_montserrat_34, 0)
+        self.number.align_to(self.lbl_date, lv.ALIGN.OUT_BOTTOM_LEFT, 0, 12)
+
+        self.call = lv.button(self.screen)
+        self.call.align_to(self.number, lv.ALIGN.OUT_RIGHT_MID, 2, 0)
+        self.call.add_event_cb(lambda e: self.on_call(), lv.EVENT.CLICKED, None)
+
+        # Two text areas on single screen don't work well.
+        # Perhaps make it dialog?
+        #self.sms = lv.textarea(self.screen)
+        #self.sms.set_style_text_font(lv.font_montserrat_24, 0)
+        #self.sms.align_to(self.number, lv.ALIGN.OUT_BOTTOM_LEFT, 0, 10)
+
+        l = lv.label(self.call)
+        l.set_text("Call")
+	l.center()
+
+        kb = lv.keyboard(self.screen)
+        kb.set_textarea(self.number)
+        kb.set_size(lv.pct(100), lv.pct(33))
+
+        self.setContentView(self.screen)
+        cm.init()
+
+    def onResume(self, screen):
+        self.timer = lv.timer_create(self.tick, 60000, None)
+        self.tick(0)
+
+    def onPause(self, screen):
+        if self.timer:
+            self.timer.delete()
+            self.timer = None
+
+    # --------------------
+
+    def on_call(self):
+        num = self.number.get_text()
+        cm.call(num)
+
+    def on_sms(self):
+        num = self.number.get_text()
+        text = self.sms.get_text()
+        cm.sms(num, text)
+
+    def tick(self, t):
+        now = time.localtime()
+        y, m, d = now[0], now[1], now[2]
+        hh, mm, ss = now[3], now[4], now[5]
+
+        self.lbl_month.set_text("busy")
+
+        cm.poll()
+        s = ""
+        s += cm.signal["OperatorName"] + "\n"
+        s += "RegistrationState %d\n" % cm.signal["RegistrationState"]
+        s += "State %d " % cm.signal["State"]
+        sq, re = cm.signal["SignalQuality"]
+        s += "Signal %d\n" % sq
+
+        self.lbl_month.set_text(s)
+        self.lbl_time.set_text("%02d:%02d" % (hh, mm))
+        s = ""
+        self.lbl_date.set_text("%04d-%02d-%02d %s" % (y, m, d, s))
+
+
+    # --------------------
+
+
diff --git a/internal_filesystem/apps/cz.ucw.pavel.cellular/assets/phone.py b/internal_filesystem/apps/cz.ucw.pavel.cellular/assets/phone.py
@@ -0,0 +1,167 @@
+#!/usr/bin/env python3
+from pydbus import SystemBus, Variant
+import pydbus
+import time
+import sys
+import json
+
+"""
+Lets make it class Phone, one method would be reading battery information, one would be reading operator name / signal strength, one would be getting wifi enabled/disabled / AP name.
+
+sudo apt install python3-pydbus
+
+sudo mmcli --list-modems
+sudo mmcli -m 6 --location-enable-gps-nmea --location-enable-gps-raw
+"""
+
+
+
+class Phone:
+    verbose = False
+
+    def __init__(self):
+        self.bus = pydbus.SystemBus()
+
+    def init_sess(self):
+        self.sess = pydbus.SessionBus()
+
+    def get_mobile_loc(self):
+        loc = None
+        mm = self.bus.get("org.freedesktop.ModemManager1")
+        for modem_path in mm.GetManagedObjects():
+            modem = self.bus.get(".ModemManager1", modem_path)
+            loc = modem.GetLocation()
+        return loc
+
+    def get_cell_signal(self):
+        loc = None
+        mm = self.bus.get("org.freedesktop.ModemManager1")
+        for modem_path in mm.GetManagedObjects():
+            modem = self.bus.get(".ModemManager1", modem_path)
+
+            loc = {}
+
+            def attr(v):
+                loc[v] = getattr(modem, v, None)
+
+            attr("OperatorName")
+            attr("OperatorCode")  # 0..11 according to MMState
+            attr("State")  # 0..11 according to MMState
+            attr("AccessTechnologies")
+            attr("Model")
+            attr("Manufacturer")
+            attr("Revision")
+            attr("EquipmentIdentifier")
+
+            attr("Gsm")
+            attr("Umts")
+            attr("Lte")
+
+            attr("SignalQuality")
+            attr("RegistrationState")
+
+        return loc
+
+    def start_call(self, num):
+        mm = self.bus.get("org.freedesktop.ModemManager1")
+
+        for modem_path in mm.GetManagedObjects():
+            modem = self.bus.get("org.freedesktop.ModemManager1", modem_path)
+            voice = modem["org.freedesktop.ModemManager1.Modem.Voice"]
+
+            call_properties = {
+                "number": Variant('s', num)
+            }
+
+            call_path = voice.CreateCall(call_properties)
+            #call = self.bus.get("org.freedesktop.ModemManager1", call_path)
+            #call_iface = call["org.freedesktop.ModemManager1.Call"]
+            #call_iface.Start()
+
+            return { "call": call_path }
+
+    def send_sms(self, num, text):
+        mm = self.bus.get("org.freedesktop.ModemManager1")
+
+        for modem_path in mm.GetManagedObjects():
+            modem = self.bus.get("org.freedesktop.ModemManager1", modem_path)
+            messaging = modem["org.freedesktop.ModemManager1.Modem.Messaging"]
+
+            sms_properties = {
+                "number": Variant('s', num),
+                "text": Variant('s', text)
+            }
+
+            sms_path = messaging.Create(sms_properties)
+            sms = self.bus.get("org.freedesktop.ModemManager1", sms_path)
+            sms_iface = sms["org.freedesktop.ModemManager1.Sms"]
+            sms_iface.Send()
+
+            return { "sms": sms_path }
+
+    # 0x01 = 3GPP LAC/CI
+    # 0x02 = GPS NMEA
+    # 0x04 = GPS RAW
+    # 0x08 = CDMA BS
+    # 0x10 = GPS Unmanaged
+    CELL_ID  = 0x01
+    GPS_NMEA = 0x02
+    GPS_RAW  = 0x04
+
+    def enable_mobile_loc(self, gps_on, cell_on):
+        """
+        Enable GPS RAW + NMEA.
+        """
+        mm = self.bus.get("org.freedesktop.ModemManager1")
+        for modem_path in mm.GetManagedObjects():
+            modem = self.bus.get(".ModemManager1", modem_path)
+
+            # Setup(uint32 sources, boolean signal_location)
+            # signal_location=True makes ModemManager emit LocationUpdated signals
+            if gps_on:
+                sources = self.GPS_NMEA | self.GPS_RAW
+            else:
+                sources = 0
+            if cell_on:
+                sources |= self.CELL_ID;
+            modem.Setup(sources, True)
+
+            continue
+            # Optional: explicitly enable (some modems require it)
+            try:
+                modem.SetEnable(True)
+            except Exception:
+                print("Cant setenable")
+                return { 'result' : 'setenable failed' }
+        return { 'result': 'ok' }
+
+phone = Phone()
+
+def handle_cmd(v, a):
+    if v == "bat":
+        print(json.dumps(phone.get_battery_info()))
+        sys.exit(0)
+    if v == "loc":
+        print(json.dumps(phone.get_mobile_loc()))
+        sys.exit(0)
+    if v == "loc_on":
+        print(json.dumps(phone.enable_mobile_loc(True, True)))
+        sys.exit(0)
+    if v == "loc_off":
+        print(json.dumps(phone.enable_mobile_loc(False, False)))
+        sys.exit(0)
+    if v == "signal":
+        print(json.dumps(phone.get_cell_signal()))
+        sys.exit(0)
+    if v == "call":
+        print(json.dumps(phone.start_call(a[2])))
+        sys.exit(0)
+    if v == "sms":
+        print(json.dumps(phone.send_sms(a[2], a[3])))
+        sys.exit(0)
+    print("Unknown command "+v)
+    sys.exit(1)
+
+if len(sys.argv) > 1:
+    handle_cmd(sys.argv[1], sys.argv)
+
diff --git a/internal_filesystem/apps/cz.ucw.pavel.cellular/res/mipmap-mdpi/icon_64x64.png b/internal_filesystem/apps/cz.ucw.pavel.cellular/res/mipmap-mdpi/icon_64x64.png