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OLIMEX EEG-SMT User Manual
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OLIMEX EEG-SMT User Manual

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EEG-SMT development board
USER'S MANUAL
All boards produced by Olimex LTD are ROHS compliant
Revision H, April 2013
Designed by OLIMEX Ltd, 2011

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Summary of Contents for OLIMEX EEG-SMT

  • Page 1 EEG-SMT development board USER’S MANUAL All boards produced by Olimex LTD are ROHS compliant Revision H, April 2013 Designed by OLIMEX Ltd, 2011...
  • Page 2 This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.
  • Page 3 OLIMEX© 2012 EEG-SMT user's manual WARNING: EEG DEVICE DISCLAIMER IEC601 is a standard that specifies tests and requirements that medical devices must pass before they can be used on humans. However, none of the devices built from these designs have been tested according to these guidelines because of the costs involved.
  • Page 4 CHAPTER 3 | IMPORTANT NOTES AND FAQ ..........14 3.1 General notes regarding frequently encountered problems ..........14 3.2 How to connect more than one EEG-SMT to a single PC ..........17 CHAPTER 4 | EEG-SMT BOARD DESCRIPTION ..........21 4.1 Outside layout ........................
  • Page 5 Each section in this document covers a separate topic, organized as follow: - Section 1 is an overview of the board usage and features - Section 2 provides a guide for quickly setting up the board and introduces the user to EEG-SMT prebuilt features...
  • Page 6 OLIMEX© 2012 EEG-SMT user's manual - Section 7 covers the connector pinout and peripherals - Section 8 provides the schematics - Section 9 contains the revision history Page 6 of 33...
  • Page 7 EEG-PE - Passive Electrode – 1 or 5 PE  USB-CABLE – USB A to USB B cable 1.5 meter for EEG-SMT to connect to a computer  VCP FTDI drivers (you can download the latest version from the official FTDI web site ...
  • Page 8 1) Connect the EEG-SMT and a computer using the USB-CABLE 2) Go to device manager and locate the group “Other devices” and right click over the OLIMEX device. Chose update driver software. A dialog will appear and you click “Browse my computer for driver software”...
  • Page 9 It is advisable to make the changes shown in the picture below in your ElecGuru program in preferences-> Trace (waveform); also make sure you have selected the proper COM port 9) Connect the 5 electrodes to the EEG-SMT (!!! The one connected to DLR must be passive electrode) 10) Place the DLR electrode (feedback) on your ear and the other 4 on your head depending what kind of brain activity you want to monitor –...
  • Page 10 2chn_test.con, but feel free to check others also) 14) From Option -> Device manager change the COM port to the COM port EEG-SMT is assigned to and the baud rate to 57600 (you can check/change the COM in Windows Device Manager in...
  • Page 11 19) Select “OpenEEG Modular EEG p2” from the drop-down menu and adjust it's properties. Especially change the COM port to the proper port the EEG-SMT got connected to (after the drivers were installed in point 6) and also remember to reduce the number of channels to 1 or 2! 20) Click Connect and then click Run 21) Run the OpenVibe client designer from the start menu shortcut “openvibe designer”...
  • Page 12 OLIMEX© 2012 EEG-SMT user's manual 26) Do steps 9) and 10) 27) Click “Play” from the tool bar at the top of the Designer interface Below is an example one-channel operation of OpenVibe: Page 12 of 33...
  • Page 13 OLIMEX© 2012 EEG-SMT user's manual More information on the OpenVibe setup may be found at their web page. The basic setup design is described here: “http://openvibe.inria.fr/tutorial-the-most-basic-openvibe-setup/”. Page 13 of 33...
  • Page 14 OLIMEX© 2012 EEG-SMT user's manual CHAPTER 3 | IMPORTANT NOTES AND FAQ 3.1 General notes regarding frequently encountered problems - The virtual com port must be numbered 1, 2, 3 or 4 in order to use ElecGuru, which you can do in Device Manager.
  • Page 15 1)The first solution: Go to the device manager before plugging the device and mark an entry there. Then plug the EEG-SMT to the computer (and your mouse will go crazy!) leave the mouse and use the keyboard arrows and TAB to navigate in the device manager and reach the MICROSOFT SERIAL BALLPOINT DEVICE and press Enter on it.
  • Page 16 OLIMEX© 2012 EEG-SMT user's manual 2)The second solution (Please follow carefully and at own risk): a solution that worked for me was to go into the registry (Start → Run/Search → “regedit” → Enter) and edit the following value: Location: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\sermouse...
  • Page 17 3.2 How to connect more than one EEG-SMT to a single PC A lot of customers have asked for a way of using more than two channels with our EEG-SMT. The design doesn't allow easy hardware modification to achieve that so the only way is by software means.
  • Page 18 OLIMEX© 2012 EEG-SMT user's manual 5. In the left panel navigate to “USB String Descriptors” and then in the right one make sure the “Serial Number” is enabled and the “Auto Generate Serial No” is enabled also. Page 18 of 33...
  • Page 19 OLIMEX© 2012 EEG-SMT user's manual 6. Right-click over Device 0 and choose to program device Page 19 of 33...
  • Page 20 9. Start two instances of a supported program (or two different supported programs). In their options set one to the COM port # of EEG-SMT#1 and the other to the COM port # of EEG-SMT#2 Note: This way you can configure more than 2 EEG-SMT devices (4 channels) as long as your USB hub (computer motherboard, power supply, etc.) is able to power the number of EEG-SMT devices...
  • Page 21 OLIMEX© 2012 EEG-SMT user's manual CHAPTER 4 | EEG-SMT BOARD DESCRIPTION 4.1 Outside layout 4.2 Inside layout (top view): Page 21 of 33...
  • Page 22 OLIMEX© 2012 EEG-SMT user's manual 4.3 Inside layout (bottom view): Page 22 of 33...
  • Page 23 OLIMEX© 2012 EEG-SMT user's manual CHAPTER 5 | THE ATMEGA16 MICROCONTROLLER 5.1 Processor features • High-performance, Low-power Atmel® AVR® 8-bit Microcontroller • Advanced RISC Architecture – 131 Powerful Instructions – Most Single-clock Cycle Execution – 32 x 8 General Purpose Working Registers –...
  • Page 24 OLIMEX© 2012 EEG-SMT user's manual – Programmable Watchdog Timer with Separate On-chip Oscillator – On-chip Analog Comparator • Special Microcontroller Features – Power-on Reset and Programmable Brown-out Detection – Internal Calibrated RC Oscillator – External and Internal Interrupt Sources – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby •...
  • Page 25 OLIMEX© 2012 EEG-SMT user's manual 5.2 Processor memory map Page 25 of 33...
  • Page 26 CHAPTER 6 | POWER SUPPLY 6.1 Power supply When EEG-SMT is connected via a USB cable to a USB host it will take its 5V power supply from the USB host source to power the board. Additionally the board can be powered using the 10pin ICSP connector.
  • Page 27 EEG-SMT user's manual CHAPTER 7 | HARDWARE The hardware section for EEG-SMT includes description of the connectors and the jumpers. 7.1 ICSP connector The 10 PIN ICSP connector provides option to reprogram the board if you want to use it as a general development board.
  • Page 28 OLIMEX© 2012 EEG-SMT user's manual 7.3 USB connector Pin # Signal Name +5V_VBUS USBDM USBDP GND/SHIELD Page 28 of 33...
  • Page 29 CHAPTER 8 | SCHEMATIC 8.1 Eagle schematic The EEG-SMT schematic is situated on the next page for quicker reference. You can also download it as a stand-alone .pdf with better quality check the web page of EEG-SMT (located in the hardware section): https://www.olimex.com/Products/EEG/OpenEEG/EEG-SMT/...
  • Page 30 OLIMEX© 2012 EEG-SMT user's manual +5VD ICSP +5VA MOSI +5VD ISOLATED PART 100nF/X7R/10% RESET (ADC7)PA7 560R 100R (ADC6)PA6 4V_REF_ADC (ADC5)PA5 +5V_USB MISO IRLML6402 39pF/COG/5% XTAL2 VOUT+ (ADC4)PA4 VIN+ (ADC3)PA3 HN2x5 DC-DC converter (ADC2)PA2 10k/1% 9.1k/1% 39pF/COG/5% 10uF/6.3V/T ANT XTAL1 (ADC1)PA1 10uF/6.3V /T A NT...
  • Page 31 OLIMEX© 2012 EEG-SMT user's manual 8.2 Physical dimensions (without the case) The board is shipped in a protective PVC case. These are the bare board dimensions. Note: All measurements are in INCHES. Page 31 of 33...
  • Page 32 Changed disclaimer to fit properly the open hardware tag of the board 9.2 Web page of your device The web page you can visit for more info on your device is https://www.olimex.com/Products/EEG/OpenEEG/EEG-SMT/. There you can find more info and some examples. Page 32 of 33...
  • Page 33 EEG-SMT - assembled, programmed, tested, calibrated EEG device EEG-AE - active electrode EEG-PE - passive electrode USB-CABLE - USB A to B cable 1.5 meter for EEG-SMT How to order? You can order from our web shop or from any of our distributors. List of distributors: https://www.olimex.com/Distributors...
  • Page 34 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Olimex Ltd. EEG-SMT-SET...