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MonkeyBoard DAB DAB+ FM Digital Radio Development Board Pro with SlideShow

MonkeyBoard DAB DAB+ FM Digital Radio Development Board Pro with SlideShow
  • DAB+ FM !
  • 78 x 45 mm size !
  • Programming API !
  • FM with RDS !

Designed in Australia, the DAB+ FM Digital Radio Development Board Pro provides a platform for developing and evaluating DAB+, SlideShow and FM receiver. The board contains a Keystone T2_L4A_8650C DAB/FM module and a Microchip PIC18F14K50 microcontroller. The T2_L4A_8650C module is an ultra low power DAB/FM receiver module with the following features:

  • ETSI EN 300 401 compliant receiver
  • DAB/DAB+ sensitivity to -99dBm (typical)
  • Decodes multiple audio services up to 256kbps without external RAM
  • FM with RDS (*** RDS reception only available for station name, station text and genre and is subjected to certain condition of power level and frequenc [more]

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89.95 EUR
incl. 19% VAT, plus shipping
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Designed in Australia, the DAB+ FM Digital Radio Development Board Pro provides a platform for developing and evaluating DAB+, SlideShow and FM receiver. The board contains a Keystone T2_L4A_8650C DAB/FM module and a Microchip PIC18F14K50 microcontroller. The T2_L4A_8650C module is an ultra low power DAB/FM receiver module with the following features:

  • ETSI EN 300 401 compliant receiver
  • DAB/DAB+ sensitivity to -99dBm (typical)
  • Decodes multiple audio services up to 256kbps without external RAM
  • FM with RDS (*** RDS reception only available for station name, station text and genre and is subjected to certain condition of power level and frequency deviation)
  • Combined antenna input for FM / Band3
  • Support DAB L-Band reception (*** Although the Keystone module supports L-Band, the SMA connector has no connection to the L-Band pin, customer will need to solder a separate antenna and other passive components to make it work.)
  • Serial control interface
  • SlideShow
  • RoHS compliant
The Microchip PIC18F14K50 provides a USB to Serial interface for the T2-L4A-8650C module to communicate with the host PC. Despite the sample code provided in this Development Board for communicating with the board is based on serial communication, user can analyse the serial communication and implements a driverless HID protocol by rewriting the firmware on the PIC18F14K50.

New SlideShow Feature
With an upgrade module using the KeyStone T2_L4A_8650C, this board now support SlideShow. Slideshow adds visual content (slides) to radio broadcasts on DAB or DAB+. It enhanced the digital radio with visuals using images in JPEG or PNG format.

What can you do with it?

    What can you do with it?
    • Build a PC controlled DAB+ FM Digital Radio
    • Build a CAR PC DAB+ FM Digital Radio
    • Build a standalone DAB+ FM Digital Radio (requires external microcontroller)
    Feature Summary
    • KeyStone T2-L4A-8650C DAB/DAB+/FM radio module
    • Microchip PIC18F14K50 USB Flash Microcontroller
    • 12 Mhz crystal
    • standard ICSP programming port for programming the PIC18F14K50
    • EXT port logic signal for controlling external audio chip power and mute
    • status LED, RX (orange) and TX (green)
    • power LED (red)
    • Bootloader push button
    • 1.2VDC, 1.8VDC, 3.3VDC LDO
    • 3.5mm stereo jack
    • SMA antenna connector
    • Dimensions : 78mm x 45mm
    HARDWARE DESCRIPTIONS
    - Power Supply Circuit
    The board is typically powered by 5VDC from USB. The PIC18F14K50 is drawing power directly from the USB. From the USB’s 5VDC, the power is further distributed into 1.2VDC, 1.8VDC and 3.3VDC LDO to the KeyStone T2-L4A-8650C module. The power of these three LDO is controlled by the SHDN pin.

    - Microchip PIC18F14K50
    This microcontroller is used to provide a Virtual Serial Port to the KeyStone module. It is flashed with a customised CDC RS-232 Emulation Demo firmware. Other than performing the standard serial emulation, it also control the power, reset and audio shunt of the KeyStone module.

    - Reset Circuit
    Reset of the module is performed by RESET pin emulated by DTR of the virtual serial port.

    - ICSP
    The ICSP programming port is the standard Microchip’s In-Circuit Serial Programming port and is compatible with Microchip’s PICkit.

    -EXT
    EXT port has two 5V logic signals, ˉSHDN and ˉSHNT. They are used to control external audio circuitry’s power and mute.

    - Push Button (SW1)
    This button, when pressed during a power-up, will trigger the PIC18F14K50’s USB HID bootloader in programming mode.

    Pre-installed Software
    • Microchip's USB bootloader (programming the board using a normal USB cable)
    • Microchip's CDC RS-232 emulation firmware

    Packing List
    • 1 unit of DAB+ FM Digital Radio Development Board
    • 1 unit of retractable antenna
    More Informations (also links to Plugins f. FreeIce, Centrafuse, etc..)

Data sheet Download (PDF)
Data sheet Print view
Manual [EN] Download (PDF)
DAB Channel Examples Download
Programming API Download
Eagle PCB Schematics Download
Firmware Source Code Download
Centrafuse Installation Download
VB.net Demo & Source (EUROPE) Download
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Customer ratings: 5 von 5 Sternen
Average rating, based on 12 ratings
3 von 5 Sternen from qxtgcf am 15.07.2017 |

Leider sind in dem Board nicht alle Features enabled, die der Chip bietet.

So funktionieren viele Funktionen, die in der Slave Mode Spec (V.3.4.1) beschrieben sind leider nicht.

Speziell die Funktion 7.2.51. Command 0x32: STREAM_GetRDSRawData
wäre interessant für den FM Betrieb um alle RDS Gruppen (TMC, TA,TP, AF, RD, RD ) auswerten zu können.

Sehr schade, hier sollte der Lieferant Monkeyboard dringend Abhilfe schaffen!! Er bestellt die Module lt. seinen Angaben nach seiner Spec.

Weiterhin sollte dem Modul ein HF Shield hinzugefügt werden. Ein Betrieb in der Nähe eines Rechners (hier ein Odroid XU4 mit Display) verhindert im FM Betrieb RDS.

Ebenso scheint der Hersteller des Empfängermodules Keystone nicht auf Anfragen zu reagieren. Mehrere Mails blieben bisher unbeantwortet.
Die Webseite http://www.keystonesemi.com ist auch auf dem Stand von 2012, was Fragen aufwirft.

Fazit: Für einen DAB/FM Receiver im Focus CarRadio mit TMC/TA/TP ist das Modul in seiner derzeitigen Form die falsche Wahl.

4 von 5 Sternen from naLaVb2YK am 10.06.2017 |

Sehr kompakt und dank Treibern und API leicht in eigene Lösungen zu integrieren (ich habe das Teil an einen Raspi gehängt und eine Anwendung dafür in C programmiert). DAB ist natürlich schon ein Argument gegenüber reinen UKW-Empfängern. Perfekt ist es aber nicht:

* Der DAB-Empfang ist mit der mitgelieferten Antenne mitunter hakelig. Ich habe eine aktive Antenne nehmen müssen.
* Es unterstützt kein Traffic Announcement (RDS-Flag, das Verkehrsnachrichten auszeichnet) und auch kein TMC / TPEG.

5 von 5 Sternen from hremigy am 13.02.2016 |

Really good board with really good support. DAB works well in Netherlands.
As mentioned above, more FM RDS info would be great until DAB is available everywhere in Europe.
A shielded box should be made available. Perfect to upgrade classic cars without having to install ugly head units.

5 von 5 Sternen from Rainer.Goldelius am 01.01.2015 |

3 Tage nach der Bestellung traf das Board schon bei mir ein und war auch schon recht schnell funktionsbereit.

Wer sich mit Windows7 gut auskennt, sollte keine Probleme haben, das Board mit Centrafuse oder mit der Demo Software zum laufen zu bringen. Ansonsten hilft der excellente Support durch JP von MonkeyBoard.org !

Geliefert wurde die Version V1.2, bei dieser Version sind die ICSP und die UART Anschlüsse auf Pinpads herausgeführt, ICSP abwechselnd Signal und Masse, das hilft, Störungen zu vermeiden.
Beim Anschluss EXT ist ein weiterer Pin hinzugekommen ( I/O Pin vom PIC ), leider undokumentiert, sodaß über die Funktion nichts gesagt werden kann.
Schön wäre, wenn darüber der PIC "stillgelegt" werden könnte, um dann über die UART Anschlüsse einen eigenen Kontroller anschliessen zu können.

Mit der beigelegten Antenne waren im Haus ( Standort Hessen ) 45 DAB Sender zu empfangen, ebenso die gewohnten FM Sender, also ein gelungenes Board ! Auch die Slideshow lief bei den Sendern, die das anbieten, einwandfrei.

Rainer

5 von 5 Sternen from kromstr@yahoo.com am 08.12.2014 |

This product does what it should do, works good and stable.
Right now i am in the middle of developping a driver for the Raspberry Pi platform.

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