A really good article about our DABBoard has appeared in the September/October issue of the Raspberry Pi Geek magazine (German, 6 pages).
The article, written by Bernhard Bablok, contains a lot of valuable information and a nice introduction to the DABBoard. There are even instructions of how to add a turning knob to the Raspberry Pi in order to tune to different stations or adjust the volume.
For those interested, the article can be read and bought as a pdf from the Raspberry Pi Geek magazine webpages:
“Das DAB Board von uGreen bietet viele Möglichkeiten für eigene Radioprojekte, und sei es nur zum Nachrüsten eines entsprechenden Empfängers für den heimischen Receiver. …”, (Translation: “The uGreen DABBoard offers many possibilities for your own radio project, for example to build an extension for a home-used receiver. …”, Bernhard Bablok, Raspberry Pi Geek 2020)
We have greatly improved the radio_cli tool to allow better automated access of the Si468x DABBoard. The useful command-line tool in version 2 can now be called with a -j parameter. This will output all responses as json. In this way, the radio_cli can now be easily included in all kind of software projects, like user-interfaces or automation projects for the Si468x.
Furthermore, the newest firmware of versions 6.0.6 (DAB) and 5.1.3 (FMHD) is included.
Download the software here:
We have built a brand-new batch of DABBoards which are now on sale. They have an improved layout and a new status LED, see the updated schematic in the instructions pdf.
The real potential of DAB+ lies in its digital audio data. Music is transmitted without loss of quality, digitally.
To fully benefit from this potential, the digital signal also has to be transmitted between the several components of an audio device until it reaches the human ear.
The Si468x chip that we use in our DABBoard has these features. And the Raspberry Pi as well. What is left to enjoy music in digital quality is to enable the I2S bus within the Raspberry Pi.
With the newest version of our DABBoard instructions we have added a manual about just that. Download the instructions to learn how to fully profit from the digital sound.
The DABBoard got an improved layout with added functionality, while keeping prices and footprint low. It is now available in our shop.
New features are:
- I2S full
digital audio data transmission to the Raspberry Pi is now supported
by the hardware, but a driver has to be added manually to the Linux
kernel to support it.
- The antenna and
L/R audio out are now accessible as pins on the board.
It is now possible to solder
a flash memory chip to the board and have the Si468x load its
firmware from that chip.
Silkscreen is printed on the
board to show the part numbers.
We have released a flexible API as a terminal tool to use the Si468x as a DAB processor in your projects.
The radio_cli named tool has the Si468x firmware compiled in. It allows control of all the main functions of the Si468x in a simple way. The tool saves you from worrying about the low-level functions when using the Si468x.
Booting up the Si468x now becomes as simple as running
and tuning to a station is simply
Get more information from the instructions pdf or run
Get the details here:
uGreen DAB Board
uGreen lauches the first Raspberry Pi DAB+ extension board with on-board audio-out headphone connector, based on the Silicon Labs Si4688 chip. The board allows simple DAB+ listening with your Raspberry Pi with a provided terminal software. Starting today, it can be purchased from our webshop.
uGreen successfully applied to the Climate KIC and innovate4climate stage 2 accelerator. The highly competitive Climate KIC accelerator program supports innovative startups with a focus on CO2 emission savings. During a short time span, the startup gets coaching to develop the business model and funding to develop the first product.