Product Information

cs-opticspy-01

cs-opticspy-01 electronic component of Crowd Supply

Datasheet
Optical Sensor Development Tools Assembled light sensor

Manufacturer: Crowd Supply
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



Price (USD)

1: USD 57.696 ea
Line Total: USD 57.696

129 - Global Stock
Ships to you between
Thu. 11 Apr to Mon. 15 Apr
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
102 - Global Stock


Ships to you between Thu. 11 Apr to Mon. 15 Apr

MOQ : 1
Multiples : 1

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cs-opticspy-01
Crowd Supply

1 : USD 52.6591

     
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OpticSpy OpticSpy is an open source hardware module for exploring and experimenting with optical data transmissions. It captures, amplifies, and converts an optical signal into a digital form that can be analyzed or decoded with a computer. OpticSpy was designed by Grand Idea Studio and is distributed by Crowd Supply. Features Easy-to-use light-to-digital converter Supports both visible and near infrared (IR) light emissions (420 to 940 nm) Works with signal frequencies from 100 Hz to 1.5 MHz Gain and threshold adjustment via potentiometers for fine-tuning of a particular target signal On-board switch to select normal or inverted polarity data streams USB interface for direct connection to a host computer (PC, Macintosh, or *nix) Application Ideas Search for optical covert channels that may exist within devices Add data exfiltration functionality into a project Receive/demodulate IR signals from remote controls and other consumer electronics Discover Li-Fi networks or Visible Light Communication (VLC) systems OpticSpy (Crowd Supply Edition) v1.0 4/18/18 Pg. 1/4 Usage OpticSpy is an optical receiver module consisting of analog and digital subsystems. The analog section consists of a photodiode, two stages of amplification, and a comparator, which receives the optical transmission, amplifies it, and converts it into a digital signal, respectively. The output from this section feeds into an FTDI FT231X USB-to-Serial IC for connection to a host computer (drivers available directly from FTDI). Test points are accessible on the module for observing each stage of signal processing. OpticSpy is powered from the host computers USB port. When connected, it will appear as a Virtual COM port and will have a COM port number automatically assigned to it. OpticSpy s 3V3 LED will illuminate indicating that the module is properly powered. OpticSpy is primarily designed to receive and decode asynchronous serial data streams that use NRZ (Non-Return-to-Zero) encoding, such as those generated from a microcontroller s UART interface and which are supported by standard terminal programs (such as PuTTY, CoolTerm, minicom, or screen). The module supports signal frequencies from 100 Hz to 1.5 MHz, corresponding to UART data rates of 300 bps to 3 Mbps, depending on OpticSpy s gain settings and the brightness and wavelength of the transmitting signal. To use, simply hold the face of OpticSpy s photodiode towards the target s light source and adjust the terminal program s communication settings to the correct baud rate of the transmitting signal. The signal will be received, processed, and sent through the FT231X directly to the terminal program. This will let you see any printable characters or other data sent by the target. Depending on the speed of the transmitting signal, the target s light source may be blinking faster than the human eye can detect, so it will appear to be steadily illuminated. When a signal is being received, regardless of data type, OpticSpy s RXD LED will illuminate or blink. If the received message appears garbled, toggle SW1 (Data Invert v. Normal) to invert the polarity of the signal. If the target data stream uses an unknown encoding scheme or one not supported by a terminal program, you can preempt the FT231X interface by connecting a logic analyzer, Arduino, or any other tool capable of displaying/processing raw digital signals to OpticSpys TP5 (Comparator Output) test point. You would then need to demodulate and/or decode the signal manually. If the target data stream is modulated with a fixed carrier frequency, such as with IR-based remote controls that range from 30 to 60 kHz, increasing OpticSpy s gain will reduce the frequency response/ bandwidth and could result in OpticSpy stripping the carrier from the signal. This convenient trick will leave you with the actual data stream and avoids the need for subsequent demodulation. Receive range between OpticSpy and the target is also affected by OpticSpy gain settings and the brightness and wavelength of the transmitting signal. The photodiode used in OpticSpy s front end approximates the spectral response of the human eye and has an ideal range from 420 to 675 nm. This means that it can detect visible light better than typical photodiodes, which have a peak response for near IR. The photodiode is still quite sensitive to IR, which allows OpticSpy to support a wide range of wavelengths. OpticSpy has been tested successfully up to 940 nm. For visible light transmissions, typical distance from the transmitting LED to OpticSpy is up to 2 inches (tested with a variety of MCU platforms containing different colored, diffused T-1 3/4 LEDs). For near IR signals, typical distance is up to 4 inches (tested with a variety of television remote controls). If the default OpticSpy settings aren t working with your particular target or you want to try to reduce ambient noise, increase receive distance, or change the frequency response/bandwidth, the potentiometers will let you adjust the gains of the amplification stages and set the comparator voltage threshold, which is used to determine the point at which the received signal is treated as a logic level 0 or a logic level 1 . See the Calibration section for more information. OpticSpy (Crowd Supply Edition) v1.0 4/18/18 Pg. 2/4

Tariff Desc

8543.70.00 - Other machines and apparatus Free
13 No Signal processors (graphic equalisers, crossovers etc.)
91 .. Other

9027.10.00 Instruments and apparatus for physical or chemical analysis (for example, 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.

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

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