Product Information

SKU-5433

SKU-5433 electronic component of Bare Conductive

Datasheet
Touch Sensor Development Tools Electronic Project Pack Interactive Workshop Pack

Manufacturer: Bare Conductive
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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1: USD 915.7577 ea
Line Total: USD 915.7577

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1
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0 - Global Stock


Ships to you between Wed. 10 Apr to Fri. 12 Apr

MOQ : 1
Multiples : 1

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SKU-5433
Bare Conductive

1 : USD 879.1274

     
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Touch Board Technical Data Sheet PRODUCT DESCRIPTION The Touch Board is a microcontroller board with dedicated capacitive touch and MP3 decoder ICs. It has a headphone socket and micro SD card holder (for file storage), as well as having 12 capacitive touch electrodes. It is based around the ATmega32U4 and runs at 16MHz from 5V. It has a micro USB connector, a JST connector for an external lithium polymer (LiPo) cell, a power switch and a reset button. It is similar to the Arduino Leonardo board and can be programmed using the Arduino IDE. The ATmega32U4 can appear to a connected computer as a mouse or a keyboard, (HID) serial port (CDC) or USB MIDI device. SUMMARY Microcontroller Atmel ATmega32U4 Touch IC Resurgent Semiconductor MPR121 MP3 decoder IC VLSI Solution VS1053b Audio output 15mW into 32 via 3.5mm stereo socket Removable storage up to 32GB via micro SD card Input voltage 3.0V DC 5.5V DC Operating voltage 5V DC Max. output current (5V rail) 400mA (100mA at startup) Max. output current (3.3V rail) 300mA LiPo cell connector 2-way JST PH series - pin 1 +ve, pin 2 -ve LiPo charge current 200mA Capacitive touch electrodes 12 (of which 8 can be configured as digital I/O) Digital I/O Pins 20 (of which 3 ar e used for the MPR121 and 5 are used for the VS1053b the latter can be unlinked via solder blobs) PWM channels 7 (shared with digital I/O pins) Analogue input channels 12 (shared with digital I/O pins) Flash memory 32 kB (ATmega32U4) of which 4kB used by bootloader SRAM 2.5kB (ATmega32U4) EEPROM 1kB (ATmega32U4) Clock speed 16MHz (ATmega32U4), 12.288MHz (VS1053b) DC current per I/O pin 40mA sink and source (ATmega32U4), 12mA source / 1.2mA sink (MPR121) Analogue input resistance 100M typical (ATmega32U4) First Floor, 98 Commercial St London E1 6LZ, United Kingdom +44 0 207 650 7977 2017 / Bare Conductive Ltd. info bareconductive.com 1POWER The Touch Board can be powered via the micro USB connection or from a 3.7V lithium polymer (LiPo) cell connected to the 2-way JST PH series connector. The power switch will switch the board on or off when powered by either power source. If power is supplied over USB whilst the LiPo cell is connected, then the charge LED will illuminate and the LiPo will charge from USB power, regardless of power switch position. INPUT AND OUTPUT The Touch Board has the same I/O layout as the Arduino Leonardo, with two important differences. Firstly, some of the Leonardo pins are used to drive the MPR121, VS1053b and micro SD card. If you want to use these pins in your project, you can disconnect them from the components they are connected to by removing the appropriate solder blobs on the board. However, if you do this, you will not be able to use the functionality provided by the components the pins were connected to, unless you re-make the blobs. Please reference the Touch Board Pin Map and Touch Board and Shields Guide documents for more information. Secondly, there are 12 capacitive touch electrodes, brought out to contacts along the top edge, which afford connecting through painting, alligator clips or M3 hardware, and a row of 0.1 / 2.54mm pitch pads on the right side, for you to solder a header to if you wish. 8 of these can be used as digital I/O. Each special pin function is explained below. Touch electrodes These connect to the MPR121 and provide capacitive touch / proximity E0-E11 sensing. E4-E11 can optionally be used as 3.3V digital inputs or outputs. Serial Used to receive (RX) and transmit (TX) TTL serial data using the ATmega32U4 Pins 0 (RX) and 1 (TX) UART. This is separate to the USB serial (CDC) functionality, so the board effectively has two serial ports one virtual over USB and one physical. TWI (I2C) TWI (I2C) data and clock pins these are used to communicate Pins 2 (SDA) and 3 (SCL) with the MPR121. IRQ This pin is used to detect interrupt events from the MPR121 Pin 4 it should only be configured as an input. SD-CS This pin is used to select the micro SD card on the SPI bus. You can disconnect Pin 5 it fr om the micro SD card pin for your own use by removing the solder blob adjacent to the output pad. D-CS This pin is used to select the data input on the VS1053b. You can disconnect Pin 6 it from the VS1053b pin for your own use by removing the solder blob adjacent to the output pad. DREQ This pin is used to detect data request events from the VS1053b. Pin 7 Y ou can disconnect it from the VS1053b pin for your own use by removing the solder blob adjacent to the output pad. MP3-RST This pin is used to reset the VS1053b. You can disconnect it from the VS1053b Pin 8 pin for your own use by removing the solder blob adjacent to the output pad. MP3-CS This pin is use to select the instruction input on the VS1053b. You can disconnect Pin 9 it fr om the VS1053b pin for your own use by removing the solder blob adjacent to the output pad. MIDI IN This pin can be used to pass MIDI data to the VS1053b and have it behave Pin 10 as a MIDI synthesiser as opposed to an MP3 player. By default, this is not connected, but you can complete the connection to pin 10 by placing a solder blob across the pair of rectangular pads provided adjacent to the output pad. You will also need to place a solder blob on the MIDI on pad pair above the ICSP header. HEADPHONE OUTPUT These pins provide the headphone output from the VS1053b on 0.1 / 2.54mm AGND, R, L pitch pads that you can solder a pin header to if you wish, as an alternative to the 3.5mm socket. EXTERNAL INTERRUPTS These pins can be configured to trigger an interrupt on a low value, a rising Pins 0, 1, 2, 3, 7 or falling edge, or a change in value. Continued on next page. First Floor, 98 Commercial St London E1 6LZ, United Kingdom +44 0 207 650 7977 2017 / Bare Conductive Ltd. info bareconductive.com 2

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free

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