“The clock actually consists of two clocks, the first being a 6 x IN-18 tube clock which is mounted on the clock’s top and displays both time and date. The second clock, this time based on 6 x IN-12A and 2 x IN-15A nixie tubes displays at the front of the clock and can display,…
An audio file player based on an MP3 module with FM radio, Bluetooth and remote control; a 10 V stereo output and two speakers are used for the listening. The device can even work via outlet or using two 3.7 V rechargeable lithium batteries. We all know we can find any kind of loudspeakers…
It is based on the DFRobot module, and enables the playing of musical tracks that have been recorded on a microSD or on a USB Pen Drive; it is supplied with outputs that enable to connect it to the AUX socket, the one most Car Audio Systems are provided with. Car Hi-Fi systems –…
In this second and final post we will go deep inside the Ethernet audio streaming transceiver firmware. Recently, we have presented an Ethernet audio streaming unit. In particular, we have shown how to configure the boards to work with other similar devices or with VLC Media Player, setting up a point-to-point or a broadcast…
The idea we propose in this article is dedicated to all those who need to set up a sound/speaker system in a residential or industrial environment: could be a natural park, a church, a mall or any place where you have to spread a spoken/musical message. The module that we propose, called Ethernet Broadcaster,…
In the previous posts we presented the project of an an embedded MP3, capable of playing and recording audio sequences by means of appropriate commands. The interaction modes, as well as the communication interfaces cover a wide range of possibilities, for example it is possible to easily use UART, USB, I²C or bit banging on…
The operation principle of this circuit is very simple and easy to describe. The basic idea consists in supplying a device that is capable of operating since it is first started: this is why we created a software, in order to automatically generate a preset configuration file, with default values, that can be modified at…
It is always convenient to dispose of an easily adaptable module that can play musical tracks: it allows to easily implement vocal syntheses to insert within a promobox, or to place items in the shop windows or in well trafficked areas, or close to automatic doors or to turnstiles, or to other…
This embedded MP3 module is an universal and compact circuit (37 mm x 27 mm) for playing MP3 audio files. The MP3 module can be used in embedded systems. The MP3 files (up 65,536) are stored in a micro SDcard. Controlling the module could be done either by buttons and digital inputs or via TTL…
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