MP3 Shield has been designed for various applications related to voice record and play using MP3 module with memory card storage, this shield can be used as standalone mode or Digital mode by serial interface. In standalone mode it can play 16 messages with couple of other functions, Standalone operation possible by connecting resistors and push switches on ADC pins of the module check data sheet for switch connections. Digital mode provides full control of messages with serial interface. Shield also has DS1307 RTC on board to develop a taking clock or other time related applications. Board has dual audio outputs, single channel 3W direct speaker output from MP3 Module and On board 5W Stereo Amplifier based on BA5406 provided to Amplify low audio signal coming from MP3 module. 4 Tact switch with open header connector can be interface to any port of micro-controller using female to female wire harness. RC6, RC7 and RC5 pin connected to micro-controller for serial interface. DS1307 RTC pins are connected to RA0 and RA1 Port pins. Refer to datasheet for Module Serial Interface, switch connections circuit for stand-alone mode.
MP3 Module & RTC DS1307 Shield For 28/40 Pin PIC Development Board – [Link]
Our friends on educ8s.tv uploaded a new Arduino tutorial. Let’s check it out.
Dear friends welcome to another Arduino Tutorial! Today we are going to take a first look at this very promising new shield for Arduino, the Arduino Easy Module Shield! Also we are going to build a couple of projects with it. Let’s get started!
Arduino Easy Module Shield Tutorial – Is this the best Arduino Shield – [Link]
ePaper displays (EPDs) are becoming a trend in application, just like the display used in Amazon Kindle, for their low power consumption due to the to the underlying ‘bistable’ display technology. These displays can continue to show information without any power at all. It is only required while updating the display with new information, otherwise there won’t be any power consumption.
Providing such revolutionary displays to your applications will be a professional approach. For this, a new crowdfunding campaign is providing Paperino, an easy-to-use, micro ePaper shield for the Particle & Arduino community. Paperino simplifies driving ePaper displays with clean, simple, and short script examples.
Thanks to the plug-and-play shield for particle family, Paperino can be used with the following boards: Photon, Electron, or Bluz without manual wiring. It can also be wired easily to be connected with Arduino and other compatible boards.
Paperino is lightweight and thinner than other ePaper products because it uses a glass-free ePaper display from Plastic Logic. It weighs 1.2 grams and is only 0.5 mm thick.
Supports Four Gray Levels
Unlike many other ePaper products out there, Paperino can support four gray levels instead of two (black and white).
Fast, Partial Updates
You don’t have to wait for slow, full screen updates to load. With Paperino, you can quickly update only parts of the screen.
The integrated accelerometer lets you interact with your Paperino in all sorts of ways, including tap sensing. Tap sensing capability can trigger screen updates or wake up your microcontroller.
The Paperino breakout board can be used for manually wiring your favourite, Arduino-compatible microcontroller with 3.3 V and >4kb of free RAM.
Resolution: 148 x 70 px
Pixel density: 150 ppi
Grey levels: 4
Weight: 1.2 g
Thickness: 500 µm
Power consumption: 4.5 mA (mean current for typical image update)
Operating conditions: 0°C .. 40°C
Storage conditions: -25°C .. 50°C
You can pre-order your own Paperino for $20 and with a driver board for $30. The crowdfunding campaign still has 16 days to go, and you can learn more details by checking it out.
Arduino is pretty much famous for the numerous shields it has. These plug-and-play shields make our life a lot easier while working on some complicated projects. Among all other shields, graphic shields are getting more and more popular. A graphic shield lets you show text, numbers, shapes, and even small images on a screen, using Arduino. VGADuino-II is a new graphic shield whichlets you use your TV or any monitor with VGA 15 pin as a large screen for Arduino.
It’s very exciting that you won’t have to rely on those small displays which are stacked on the shield itself, anymore. Rather you are getting a whole TV or VGA monitor to display your data. As Masih Vahida, the creator of VGADuino, says:
VGADuino is a shield that is made for Arduino with all the libraries and samples that user can easily stack it on the Arduino board and starts programming. it can connect Arduino to any kind of TV or Monitor with VGA 15 Pin connector.
Internal functions to draw various shapes with AT-Commands and Arduino libraries
11 Different font sizes with standard ASCII characters support
256 color, 8bit RGB format
Having access to each pixel individually
Standard VGA DB15 output
Screen resolution: 800×600 60Hz
Actual pixels: 400×300 60Hz
In VGADuino-II, NXP-LPC1756 ARM chip is used as the main microcontroller and XILINX XC95144XL CPLD for refreshing the display and taking care of the sync signals. There is also an SD Ram to keep the screen’s pixel color data.
In this version of VGADuino, each pixel is one byte, that means each pixel has 256 colors which are in standard 8bit RGB format. (3 bits for Red, 3 bits for Green and 2 bits for Blue).
It communicates with Arduino over UART using predefined AT command set. All relevant Arduino libraries are available to implement in code. The user can choose among all 11 fonts with definable background and foreground color of text.
VGADuino-II is available for $79. You may go here and back the Kickstarter project to get a VGADuino-II. All the groundbreaking features offered by VGADuino-II are making it a value for money. There is no risk at all. The design is tested and completed by the maker.
Conductivity is the ability of a material to transfer electrons. It is the opposite of the concept of resistivity which is well known to electricians. However, while we are used to address the topic of conductivity in the field of electronics, things get a little bit more complicated when we try to apply the concepts to chemical solutions such as salty water.
Jarek tipped us with his latest project, an E-paper screen shield kit for Teensy. He writes:
E-paper screens have been hacked out of Kindles and store price tags for a while, but this is the first ( to my knowledge ) open-source project which offers a simple and cheap interface for E-paper. After you prototype your idea with this board, you can get the plans from my project page and integrate the solution into a project or commercial product without having to iterate fives times as I have to get the E-paper driving circuitry just right. The shield fits over most Teensy boards, and the female headers mean you can plug wires right into a breadboard or any other 3.3V microcontroller board. E-paper is sensitive to temperature, so there is an I2C sensor on board that can be used if you need to use your E-paper in harsh environments.
The electronics engineer and microcontroller programmer expert, Masih Vahida has launched his latest SoundDuino Arduino shield product: SoundDuino 3!
SoundDuino is a WAV Sound Player & Recorder Shield for Arduino. This sound shield let you record and play sound files to or from a Micro-SD memory card with all libraries and samples for the Arduino IDE.
“SoundDuino is a sound recorder and player that is able to play the sound files from the Micro-SD memory card or even record sounds to the memory with your desired file name. It supports FAT16 and FAT32 and you can easily copy your files into the memory and to play them, you only need to use the library that we give you with this shield and just send the file name that you want to play! Yes, very very easy!” Vahida explains.
This video shows the very first version of SoundDuino and some of its applications
The newest shield, SoundDuino3, is based on NXP LPC2103 ARM7 32bit microcontroller and it can play 16 bit 48khz sound files with a very high quality. It also has audio input and output jacks, an onboard microphone as well and can work from 3.3v to 5v. SoundDuino fits nicely on an Arduino Uno and is compatible with any Arduino boards using pins GND, VCC, RX and TX. Moreover, the device is delivered with libraries and examples for Arduino IDE.
This project is now live on Kickstarter, check the campaign video
You can use this shield to announce numbers and add you own files into the memory. You can also extend the example code and have it read the text also.
SoundDuino 3 specifications:
Updated firmware, high quality audio
Automatic baudrate detection
Sound quality is Stereo 16 bit 48hkz (SoundDuino 1 was Mono 8 bit 48khz)
Super easy to use, new functions in library to announce the numbers .
More useful functions in the library
the sound quality is much much better than the last version
System voltage is 3.3v compatible with Arduino boards
With SoundDuino shield it seems easier to start building some great audio projects. You can follow the project updates and order your own SoundDuino 3 for $59 now from the crowdfunding campaign.
Inspired by an interest in spreading the concepts of FPGA, and because its ability to overcome most of other platforms limitations such as IO, memory, and peripherals, technolomaniac had worked on developing the first Arduino FPGA shield.
A Field-Programmable Gate Array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturing. FPGAs contain an array of programmable logic blocks which include memory elements, and a hierarchy of reconfigurable interconnects that allow the blocks to be “wired together” to perform complex combinational functions, or merely simple logic gates like AND and XOR.
The FPGA shield includes additional I/O and memory resources, and it can be programmed either by SPI flash or via Arduino Due. Programming by the SPI flash from Arduino is done via the ICSP header which is carried on the shield board. The shield also include a second chip select (GPIO) to enable the ICSP to connect to the FPGA via SPI.
The PCB board contains these components:
Xilinx Spartan 6 LX9 FPGA – device playground, a cost-optimized FPGA, offering high logic-to-pin ratios, small form-factor packaging, and a diverse number of supported I/O protocols.
Time and date information may be essential requirements for developing a hardware project, such as registration systems, alarms, and smart pills box. These information can be obtained locally by RTC (Real Time Clock) and RTCC (Real Time Clock Calendar) circuits like DS1307 from Maxim Integrated.
Microchip, an embedded control solutions company, produced MCP7941X three-member family of low power RTCCs with EEPROM and SRAM. Each of MCP79411 and MCP79412 has a unique MAC address that can be programmed by the end user for the networking applications. MCP79411 uses 48-bit MAC address and MCP79412 uses 64-bit one. MCP79410 is suitable for non-network applications as it has the same features except the unique ID.
These integrated circuits are compatible with I2C™, include a battery switchover circuit for backup power, and use a low-cost 32.768 kHz crystal, providing time tracking in 12 or 24 hour format and two settable alarms to the second, minute, hour, day of the week, date or month. They also have programmable output pin which can be set as an alarm out or a selected frequency clock out.
The shield PCB contains the MCP79410 chip, SMD components, CR2032 battery holder, male and female stripps, and three buttons. The three buttons are connected with the Arduino and Raspberry Pi and they are used for the configuration process.
There is also a library which allows you to use and program the shield easily. It contains three files, two of them are the functions and theirs declarations, and the third is a text file contains the keywords of public functions and theirs usage.
The shield is available for $18.5 (16.50€). You can order it from open-electronics store and have access to the libraries and example sketches.
Full documentation of the shield with its schematics and diagrams is available here.
Raj @ embedded-lab.com has revised his RGB Matrix Display Shield to an improved version.
The shield now also carries the DS1307 RTC chip on board along with a CR1220 coin cell battery holder on the back. It is applicable for driving popular 16×32 RGB matrix panels with HUB75 (8×2 IDC) connectors. Row and column driver circuits are already built on the back side of these matrix panel. The data and control signal pins for driving rows and columns are accessible through the HUB75 connector. It requires 12 digital I/O pins of Arduino Uno for full color control.