OK...I've been working...more than 45 minutes to get this , this micro tag NSA we're talking about Snowden , can be embebbed with wifi connection , audio, camera, flash, and so on...what I didn't get yet, is the software

Product description

1. MCU core board connector: for easily connecting the Core746I
2. Arduino interface: for connecting Arduino shields
3. DCMI interface: for connecting camera
4. 8-bit FMC interface: easily connects to peripherals such as NandFlash
5. ULPI interface: for connecting high-speed USB peripheral (the STM32F746I integrates USB HS controller without any PHY device) 
6. LCD interface 1: for connecting 10.1inch LCD, 7inch LCD
7. LCD interface 2: for connecting 4.3inch LCD
8. SAI1 interface: for connecting audio modules like UDA1380 module
9. ICSP interface: Arduino ICSP
10. SPI1/SPI2 interfaces: 
easily connects to SPI peripherals such as DataFlash (AT45DBxx, W25QXX), SD card, MP3 module, etc. 
easily connects to AD/DA modules (SPI1 features AD/DA alternative function) 
11. Ethernet interface: for connecting Ethernet modules
12. I2S2/I2S3/I2C1 interface: easily connects to I2S peripherals such as audio module, etc. 
13. USART1 connector: USB to UASRT via the onboard convertor CP2102 
14. QUADSPI interface: 4-wires SPI interface (the F7 series latest peripheral interface), for connecting serial Flash modules like W25QXX Board
15. SDMMC interface: for connecting Micro SD module, features much faster access speed rather than SPI
16. USART3 interface: easily connects to RS232, RS485, USB TO 232, etc. 
17. CAN2 interface: for connecting CAN modules
18. CAN1 interface: for connecting CAN modules
19. I2C1/I2C4 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), 10 DOF IMU Sensor, etc. 
20. MCU pins connector: all the MCU I/O ports are accessible on expansion connectors for further expansion
21. 5V DC jack
22. 5V/3.3V power input/output: usually used as power output, also common-grounding with other user board

https://www.amazon.com/Next-Open746I-C-Package-STM32F7-Development/dp/B01EHK88Z2

So, NSA gadgets hidden on coins, or currency ...

you want secret transmissions?...(they have it) could we transmit "Utilizing home audio tweeter piezoelectric elements and an 8bit microcontroller data was encoded into an acoustic wave which was transmitted through water and detected by another microcontroller using an identical piezoelectric element as a microphone" ? do you want it? TOR network?

   Inexpensive Underwater Data Communication.pdf by Elsa Cristina David on Scribd

Applications, among others... Send/Receive data...piezo air transducer!....here we have an external drive (!!) 25 p~p (peak to peak voltage waveform)

https://www.steminc.com/PZT/en/piezo-air-transducer-112-khz

http://www.communica.co.za/catalog/Details/P4066208523

For the countries interessested ...on transfering data and packets crossing the faraday cage ...where their servers are protected

Data Transfer and Wireless Changing Over Electro Magnetic Field

 

   Data Transfer and Wireless Changing Over Electro Magnetic Field by Elsa Cristina David on Scribd

well...last resource for their protection is...Transmitting data and power through a Faraday Cage boundary

While the Faraday Cage effect is essential in many contexts – preventing leakage from microwave ovens, lightning strike protection, screening data cables – TTP’s Fluxor technology will have major benefits for power and data transfer through metal shielding. TTP is already using the technology for monitoring fluid levels in steel pipes, taking readings from medical implants and measuring data from inside high-performance F1 engines.

The Fluxor method creates a ‘window’ for electromagnetic transmission of power and data by applying a strong DC magnetic field, which lines up the magnetic dipoles in the material to ‘saturate’ a small area of the metal screen. This reduces the permeability and increases penetration to make it possible to transfer electromagnetic power and signals. Experiments conducted by TTP using steels from 5-15mm thick show that the optimum operating frequency range is in the region of 400-500Hz.

In a typical operating scenario, a portable interrogator unit with a permanent magnet or electromagnet could be placed adjacent to a fixed sensor, through a metal wall. A Fluxor window is opened to transmit power to energise the sensor and transmit a signal back – all without the need for physical openings in the enclosure.

http://www.eedesignnewseurope.com/news/transmitting-data-and-power-through-faraday-cage-boundary

Arduino ESP8266 IoT : Relay Control Internet .....drone defender...

http://anodas.lt/elektronika/ENC28J60-Ethernet-Module

UFED Ultimate / PA Extract and decode every ounce of data within digital devices. Delve deep using leading-edge forensic examination capabilities and thoroughly review logical, file system and physically extracted data to discover critical evidence

https://www.cellebrite.com/en/product/solutions/extract-decode/

well, if you find any phone you want to hack...sometimes politcians leave it on the airplanes to Angola...you plug in

Rubber Ducky USB keystroke injection tool covert hacking exploits reverse shell
http://www.ebay.com/itm/like/282605197738?vectorid=229466&lgeo=1&item=282605197738&rmvSB=true

Ok, another NSA gadget : HACKING A VGA CABLE TO BEND STEREO AUDIO INTO SHORTED VIDEO

   HACKING A VGA CABLE TO BEND STEREO AUDIO INTO SHORTED VIDEO by Elsa Cristina David on Scribd

CIA beta aluminium nano cell explosive (beta aluminum solid electrolyte after compression at 800MPa...)high explosive on your hands (sodium sulfur batteries)