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Beast NFC Business Card

Cortex M0+ NFC badge and business card

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A smart business card based on ARM Cortex M0 with integrated NFC. The business card is powered with the harvested energy from NFC communication. For the enthusiasts, JTAG and I2C interface is exposed in a breakout, which makes it possible to tinker and even use it as a development board.

It uses NXP LPC8N04, and features nine 0.4 mm slim orange LEDs for the light show and feedback. The MCU itself consumes only 900uA at 8MHz and 200uA at 1MHz. Given that NFC readers provide power continuously, there are many application that could be implemented on the business card. I haven't came up with anything fancy yet, except for hooking up I2C sensors, and using LEDs and time interval that card is held against the NFC reader to change the mode of operation. If you have any ideas, leave the comment below!

SCHEMATICS_NFC-Beast-Card_BS-NFC-01.pdf

Schematics, revision S1.0

Adobe Portable Document Format - 245.09 kB - 10/21/2019 at 19:20

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  • 1 × NXP LPC8N04 ARM Cortex M0+ MCU with NFC
  • 1 × Avago HSML-C197 Orange 0.4mm thick 0603 LED

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D Kearns wrote 11/14/2019 at 20:05 • point

You may want to look at Kingbright LEDs their ultra-thin APG1608 series is 0.25mm thick in the 0603 package.  More color options too.  Don't know if voltage and current specs will fit the bill.

Hope you can get your hands on some. 

  Are you sure? yes | no

Beast Devices wrote 11/15/2019 at 10:17 • point

Thank you! I thought I found the thinnest. I will probably replace with these in the next version. The real challenge though is the MCU, it is 1 mm thick. 

  Are you sure? yes | no

Elliot.albright wrote 11/13/2019 at 23:08 • point

Can the card be powered simply by your phone being near it?

  Are you sure? yes | no

Beast Devices wrote 11/15/2019 at 10:11 • point

Yes, if a phone has the NFC

  Are you sure? yes | no

Im wrote 11/13/2019 at 14:30 • point

what's the product description more exactly?  can two cards tap each other and exchange information? 

  Are you sure? yes | no

Beast Devices wrote 11/13/2019 at 16:45 • point

The card is passive and doesn't have any energy source. So, no, it is not possible. Works only with active NFC reader.

  Are you sure? yes | no

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