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[hemmerling] Google Android 8/12 - Hardware

Standard ( Smartphone ) Hardware

Captiva Pad 2in1


My Android Phone "Motorola moto g54 5G"

The Tool

Motorola ThinkShield for Mobile


Device & Display Protection


  • The size of 6.5” makes it unusable with the Google Cardbox :-(.
  • Thethering, WLAN hotspot.
    • Security ( but not “WPA1” :-( ):
      1. WPA3 - Personal.
      2. WPA2/WPA3 - Personal.
      3. WPA2 - Personal.
      4. None.
  • AP Band: 2.4 Ghz, 5 Ghz.
  • To switch of the device, press at the same time the “Power” button and the “Volume up” button. A menu is displayed which offers to shutdown the device.

My Android Phone "BQ Aquaris U"

The Tools


  • The BQ support wrote me about the purpose of the small metallic pin supplied with the smartphone: “Der metallische Pin, der dem Aquaris beigefügt wird, wenn es rechteckig ist und mit einem Stengel daran, dann dient das dazu, die Fächer für die Mikro-SD-Karte sowie für das SIM-Karten-Slot zu öffnen. Stecken Sie den Stengel kurz in das kleine Loch über dem SIM-Karten-Slot oder über dem SD-Karten-Slot und drücken Sie es kurz rein, dann springt das entsprechende Slot auf, damit Sie die entsprechende Karte hineinlegen oder entfernen können. Diese befinden sichan der seitlichen Kante des Gerätes. Aber Achtung: diesen Stengel nicht am oberen oder unteren Rand in ein Loch hineinstecken, sonst können Sie etwas kaputtpieksen!”.
  • “Nano-SIM” card slot.
  • Thethering, WLAN hotspot.
    • Security ( but not “WPA1” :-( ):
      1. WPA2 PSK.
      2. None.
    • AP Band: 2.4 Ghz.
  • The smartphone may connect to “open”, “WPA” & “WPA2” hotspots of the 2.4 Ghz AP band.
  • External USB keyboard & mouse sets are recognized properly at “Settings / Language & Input / Physical Keyboard”.
  • “Settings / About phone / System updates / Update” - “Check for updates”.
  • Geizhals "Bq Aquaris U grau" - “Kann auf Android 7.0 Nougat aktualisiert werden (demnächst)”.
  • GSMArena "Bq Aquaris U" - “BT4.2, BLE, NFC”.

Some other, but non-competitive BQ Model

My Android Tablet "Acer Iconia One 7 B1-770"



My Android Tablet "I-ONIK TabletPC TP7-1000DC light"

My Android Phone "Alcatel One Touch Scribe HD 8008D"

The Smartphone

  • Alcatel Mobile ( formerly: “Alcatel-Lucent” ).
  • Has no NFC, no BLE, no gyro :-(.
  • Has FM radio :-).
  • “Micro-SIM” card slot.

The capacitive Alcatel Stylus


Mobile Devices with Blue Tooth Low Energy ( BLE ) Feature & NFC Feature

Legacy Devices & Current Devices ( as of 2017-01, 2020-08 )

Devices as of 2017-01

Expensive Devices ( as of 2022-11 )



  • The people of GreatChina may not use Google-Play appstore, instead they use local Chinese appstores.
  • Some Chinese smartphone users don´t realize, that they are using a fork of Android operating system, e.g. “ColorOS”. They don´t know the name of their operating system, but name it “Oppo” ( the name of the hardware smartphone manufacturer ). By this, they think that they are using an “incompatible third standard”, so a non-Apple, and non-Android operating system, and that they can´t install native Android apps.
  • The most important Chinese hardware manufacturers for Android-alike smartphones are:

Top Smartphones for South Africa & Namibia

Smartphones with simple User Interface & interaktive Smartcover

  • emporia telecom "emporiaSMART.5" - “Serienmäßig ausgeliefert wird das emporiaSMART.5 mit dem patentierten, interaktiven Smartcover. Dieses erlaubt die Bedienung wichtiger Funktionen (z.B. Anrufe abnehmen und auflegen, Kamera und Taschenlampe) bei geschlossenem Zustand. So schnell war ein geschütztes Smartphone noch nie bereit”.

Some other Smartphones

Embedded Android Hardware

Streaming Media Devices & TV Sticks ( Android TV, Google TV, Amazon Fire TV Stick )

Android Things Platform Hardware

Supported Hardware

Connectivity to Android Studio

Android Things Starter Kit, with "PICO-PI-IMX7"

The Kit
Hardware assembly instructions
MCU Manufacturer Resources

Raspberry Pi 3 Model B

Special embedded Android Hardware


NXP ( formerly: Freescale )


Entry-Level Devices with "Android (Go Edition)"

( Power-Saving ) Entry-Level Devices

Android (Go Edition) - The Software

Extra IO Devices, for use with "Android Open Accessory Development Kit ( ADK )"

ATMega2560 ADK - Hardware I/O Device for Android

IOIO - Hardware I/O Device for Android

Additional Hardware


Power Packs, PowerPacks / Emergency Solar Chargers, / Emergency Chargers ( extra Accus & Batteries )

  • My power packs:
    1. Power bank “N-m 475”, 10.000 mAh = 37Wh( “Intel” ). There are 4 blue LEDs.
      • Charging of the power bank akku, by 230V grid, via power adapter:
        • From right to left: The completeness of charging ist visualized by 4 blue lighting LEDs. The more blue LEDs are steady lighting, the more the charging is complete. Always the left blue LED might blink.
        • Complete charging, i.e. until the right blue LED is stable lighting, may take up to 24h.
    2. Power bank “5303”, 5200 mAH = 19.24 Wh ( “msg DAVID” ).
    3. Power bank “TOP-charger 3 in 1”, 5.000 mAh ( “baramundi” ) - USB input, Micro-USB input, Micro USB output - Defect as delivered, from start: Loads power, but does not provide power :-(.
      • Extra Type-C 2 Micro-USB adapter :-).
    4. Power bank “PLUTO”, 2.600 mAh.
    5. Power bank 2.600 mAh ( “NET system integration”, “Smart and connected” ) by NET AG system integration, Klio-Eterna Schreibgeräte GmbH & Co KG.
    6. Power bank “Ultra Thin 2500MAH Powerbank”, 2500 mAh by “Texas Instruments”.
    7. Power bank “reVolt”, 2.200 mAh, by PEARL.GmbH.
    8. Power bank, 3000 mAh, by Wirtschaftsförderung Bochum Wofö GmbH.
      • There is a button on the device, what's its purpose?
      • Defect as delivered, from start: Loads power, but does not provide power :-(.
    9. Emergency solar charger ( “hp” = Hewlett-Packard ), 1000 mAh.
      • “Do not charge your phone while the charger is being charging via USB” :-(.
      • “This charger is for emergency power only; it will not fully charge your phone” :-(.
    10. Emergency charger “Notladeadapter für Handys PX-2009” / “Callstel Pocket Charger”, by PEARL.GmbH, 1 AA accu 2700 mAH/1.2Volt.

Standard AA Accus & AAA Accus


Capacitive Stylus / Touch Pens



On The Go (OTG) Cables

OTG Cables relevant for me

micro-USB ( male ) ----- micro-USB ( female, with Power Transmission ) & USB-A ( female )
USB-C ( male ) ----- USB-C ( female, with Power Transmission ) & USB-A ( female )

USB-C ( male ) ----- USB-C ( female, with Power Transmission ) & USB-C ( female )

On The Go (OTG) Combi Solution

1. USB-C ( male ) ----- micro-USB ( female, with Power Transmission )
  • ?
2. micro-USB ( male ) ----- micro-USB ( female, with Power Transmission ) & USB-A ( female )
3. micro-USB ( male ) ----- USB-A ( male ) ----- 5V Power Supply with USB-A ( female )

Some other "On The Go" (OTG) Cables

USB-A ( male ) ----- USB-C ( female, with Power Transmission ) & USB-C ( female, with Power Transmission )



    • “Transform your Android phone into a satellite smartphone”.
    • “SatSleeve+ comes with a universal adaptor in the package that allows you to switch between various Android and iPhone phone models between 58 and 85mm in width”.
    • “Simply connect your smartphone via Wi-Fi to the satellite unit and stay connected”.
    • Such a device, but as gadget for GSM Arena "BlackBerry Porsche Design P'9981", was presented in the movie Mile 22 of 2018.

SIM ( Subscriber Identity Module ) Cards

Smartphone Tripods

Tools with classical Camera Tripod Thread

Special Tools


Telescopes for use with Smartphones

WLAN Gateways

4G WLAN Gateways

5G WLAN Gateways

  • ?

Wireless ( Bluetooth) Devices

Additional Legacy Mobile Communications Systems & Services

Mobile Internet Access Hardware

Legacy traditional ( non-Smartphone, non-Android ) Telephones

  • “Samsung Ce0168” - My first classical legacy mobile phone, legacy WAP enabled :-), not the legacy tablet.
    • The “PIN” is the login password. Please remember it, you have just 3 tries to enter.
    • If you want to reset the phone to factory settings or delete the phonebook, you are asked for a “Password”, which is not the “PIN”. You were never forced to setup, so probably it is still the default 8-digit password “00000000” ( = 8 times zero ).

Legacy Business Models for mobile Telephones


  • Criteria to buy a budget Mobilephones in 2023-10.
    • Criteria: LTE, 5 GHz WiFi, 6 GHz WiFi ( “WiFi 6E” ), BLE, NFC, gyro ( for interactive Cardboard VRML Apps ), display resolution, RAM, internal/external memory, accu can be removed, operating system version and promise to deliver the next version for free in some time.
    • Extra criteria, can just be confirmed by access to the physical device: May the camera photoshot function be mapped on the loundness key, to use “Selfie Sticks” / “Monopads” for taking photos?
    • Extraordinary criteria of 2019: Wireless Charching option?

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