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Line 1: − + − + − + + + + + + + + + + + + + + − + − | [https://pypi.python.org/pypi/RuSocSci RuSocSci] (Python package) − + Line 26:
Line 38: − This means that when light falls on the sensor, a capital A will be sent to the serial port. A lowercase 'a' will be sent when the signal is deactivated(no light).+ − + − − EDIT howto − − ===Trigger port === − − [[File:Connector.png|thumb|300x300px|Schematic view of the 25 pins connector]] − − The 25 pins female connector has 8 inputs and 8 outputs, respectively 1-8 are inputs and 9-16 are outputs. Three analog input with an analog to digital convertor of 12 bit, pins 17,18,20 and 21. Two analog outputs with an digital to analog convertor of 12 bits on pins 22 and 23. − − The inputs 1-8 will be pulled down from 5V to GND when the buttons are pressed. The outputs 9-16 will be pulled up from GND to 5V when the output is activated. Line 64:
Line 66: − + − + − − 3.On Windows Vista/7, the driver should be automatically downloaded and installed. − − 4.On Windows XP, the Add New Hardware wizard will open: − − *When asked '''Can Windows connect to Windows Update to search for software?''' select '''No, not this time'''. Click next. − *Select '''Install from a list or specified location (Advanced)''' and click next. − *Make sure that '''Search for the best driver in these locations''' is checked; uncheck '''Search removable media'''; check '''Include this location in the search''' and browse to the '''c:/beheer/arduino/drivers '''directory. − *The wizard will search for the driver and then tell you that a "USB Serial Converter" was found. Click finish. − *The new hardware wizard will appear again. Go through the same steps and select the same options and location to search. This time, a "USB Serial Port" will be found. Line 99:
Line 91: − − === Neurobs Presentation === − − The experiment files needs a few settings for the device to work: − * In the settings tab: port -> input port -> 1 must be the device that identifies itself as "Arduino Uno" in the device manager. Note that the port must have a number not higher than 10 (COM1-COM10). Use re-enumerate if it is higher. − * Rate must be set 115200, Parity to None, Data Bits to 8 and Stop Bits to 1, Uncheck FIFO Interrupt. − − [[File:Buttonbox2.png]] − − '''Testing Buttonbox''' − − When pressing on the A button within the input channel tester. You will see the following ASCII code. − − [[file:testbuttonbox.png]] − − '''Adding Marker''' − − [[file:output_buttonbox1.png | 800px]] − − '''Testing Markers (output)''' − − Send code 1 for Button A − − [[file:output_buttonbox2.png]] − − Button A will light up. − − [[file:buttonboxledA.png | 200px]] − − Send code 0 for clearing. − − [[file:output_buttonbox3.png]] − − '''Example PCL code you can program a handle to send a marker:''' − − #handle: − output_port OutputPort = output_port_manager.get_port( 1 ); − − '''Example to send a marker:''' − OutputPort.send_code(100); #create a marker − − − for more information see chapter 8 in the presentation course by clicking [http://tsgdoc.socsci.ru.nl/images/9/9e/Programming_with_Presentation_2013.pdf here] − Download this site-package to use the buttonbox: [https://pypi.python.org/pypi/RuSocSci rusocsci] + − − or use in windows command 'pip install --upgrade rusocsci' − − − + + − # import the rusocsci.buttonbox module+ − from rusocsci import buttonbox + − + − # make a buttonbox+ − bb = buttonbox.Buttonbox() − − − − − # print the button pressed − print("b: {}".format(b)) − '''Example using markers with the buttonbox in Python:'''+ − − <syntaxhighlight lang="python" line> − #!/usr/bin/env python − − # import the rusocsci.buttonbox module − from rusocsci import buttonbox − − # make a buttonbox − bb = buttonbox.Buttonbox() − − # send a marker − bb.sendMarker(val=100) #This is your marker code, range code 1-255 − </syntaxhighlight> − − '''Example using BITSI extended in Python:''' − − <syntaxhighlight lang="python" line> − #!/usr/bin/env python − − # import the rusocsci.buttonbox module − from rusocsci import buttonbox − − # make a buttonbox − bb = buttonbox.Buttonbox() − − # select a function − bb.sendMarker(val=(ord(X))) #select pulse time − bb.sendMarker(val=2) #set time of dureation pulse to 2ms − − bb.sendMarker(val=(ord(M))) #select marker out − bb.sendMarker(val=115) #set marker value 115 − </syntaxhighlight> − − '''Example using BITSI extended analog read in Python:''' − − <syntaxhighlight lang="python" line> − #!/usr/bin/env python − − # import the rusocsci.buttonbox module − import serial − − # make a buttonbox − ser = serial.Serial("COM2", 115200, timeout = 0.10 ) − ser = serial.Serial("/dev/ttyUSB0", 115200, timeout = 0.10 ) − − while True: − ser.write('A1') − ser.flush() − x = ser.readline() − visual.TextStim(win, text=x).draw() − − # black screen for 1000 ms − win.flip() − − key = event.getKeys() − try: − if key[0]=='escape': − break − except: − continue − </syntaxhighlight> − − Line 237:
Line 113: − from rusocsci import buttonbox+ + − + − bb = buttonbox.Buttonbox()+ − text = visual.TextStim(win, "Press a button on the buttonbox")+ + + + + + + + + − + − text.draw()+ − win.flip() − # wait for response − b = bb.waitButtons() − # show response − text.setText("you pressed: {}".format(b)) − text.draw() − core.wait(5)+ + + + + + + Line 260:
Line 145: − For more documentation click here: http://pythonhosted.org//RuSocSci/index.html − <br> − <br> Line 288:
Line 170: − </syntaxhighlight> − − BITSI extended mode: − <syntaxhighlight lang="matlab" line style="overflow:auto;"> − samplerate = 500; − pulseLen = 2000/samplerate; − % select a function − bb.sendTrigger(uint8('X')); % select pulse time − bb.sendTrigger(pulseLen); % set time of duration pulse to (2000/samplerate) ms − − val = 1; % val: this is your marker code, range code 1-255 − bb.sendTrigger(uint8('M')); % select marker out − bb.sendTrigger(val); % val: this is your marker code, range code 1-255 − </syntaxhighlight> − − <syntaxhighlight lang="matlab" line style="overflow:auto;"> − % At the end of your script, close the buttonbox serial object − : − bb.close();
no edit summary
{{Infobox tsg
{{Infobox tsg
| name = Buttonbox (2018)
| name = Vertical Sync sensor
| image = Buttonbox_2018_1.png
| image = sensorPic.jpg
| caption = 2018 Buttonbox
| caption = Vertical Sync sensor
}}
{{Infobox tsg
| name = Seeed Studio XIAO SAMD21
| image = Seeeduino_XIAO.JPG
| caption = Seeed Studio XIAO SAMD21
| downloads = {{bulleted list
| [https://wiki.seeedstudio.com/Seeeduino-XIAO/ product_page]
}}
}}
{{Infobox tsg
| name = TEMT6000 Licht Sensor Module
| image = temt6000.jpg
| caption = TEMT6000 Licht Sensor Module
| downloads = {{bulleted list
| downloads = {{bulleted list
| [https://surfdrive.surf.nl/files/index.php/s/PPTKCyrjLkN4XUO Buttonbox 2018]
| [https://surfdrive.surf.nl/files/index.php/s/Mpdr2DGEFlwetag Datasheet]
}}
}}
}}
}}
The Vertical Sync sensor is used on a computer/laptop monitor for time accurate visual presentation. The sensor measures screen brightness. It generates a BITSI trigger("A" = ON/light, "a" = OFF/noLight) when the amount of light is higher than the (customizable) threshold, which means that the exact onset of any visual stimulus can be marked. It can easily be attached to any screen with a pincher. The Vertical Sync sensor is connected to a computer with a usb connection.
The Vertical Sync sensor is used on a computer/laptop monitor for time accurate visual presentation. The sensor measures screen brightness. It generates a BITSI trigger to the com-port("A" = ON/light, "a" = OFF/noLight) when the amount of light is higher than the (customizable) threshold. This means that the onset of visual stimulus on screen can be marked. It can easily be attached with a pincher to the screen. The Vertical Sync sensor is connected to a computer with a usb connection, a serial port is emulated. You may want to read about [[presentation modes]] in order to decide how to use the sync sensor.
== BITSI Protocol ==
== BITSI Protocol ==
|}
|}
Meaning when light falls on the sensor, a capital A will be sent to the serial port. A lowercase 'a' will be sent when the signal is deactivated(no light).
===Output===
===Output===
The treshold for OFF is customizable and can be specified by sending a code Send code to specify the value for screen OFF.
The treshold for monitor OFF is customizable and can be specified by sending a byte to specify the value for screen OFF. Any byte satisfies, see example code.
== Port Settings ==
== Port Settings ==
===Serial port===
===Serial port===
=== USB-Com port ===
=== USB-Com port ===
1.Connect the BITSIbox to your computer using the USB cable.
1.Connect the Vertical Sync sensor to your computer using the USB cable.
2.When you connect the BITSIbox, Windows should initiate the driver installation process (if you haven't used the computer with an BITSIbox board before).
2.When you connect the Vertical Sync sensor, Windows should initiate the driver installation process (if you haven't used the computer with an Vertical Sync sensor before).
'''How to Check the Com Port settings(important!)'''
'''How to Check the Com Port settings(important!)'''
== Software Settings ==
== Software Settings ==
=== Python/PsychoPy ===
=== Python/PsychoPy ===
<br/>'''The basics using the Vertical Sync sensor in PsychoPy:'''
'''Example using buttons from the buttonbox in Python:'''
<syntaxhighlight lang="python" line>
<syntaxhighlight lang="python" line>
#!/usr/bin/env python
# initialize treshold for OFF by sending a code
ser.write(b'1')
visual.Rect(win, .15, .25, pos=(-1, 1),fillColor="white", units="norm").draw()
win.flip()
# wait for a sync square
b = ser.read()
# wait for a single button press
b = bb.waitButtons()
</syntaxhighlight>
</syntaxhighlight>
<br/>'''Example script using the Vertical Sync sensor in PsychoPy:'''
<br/>'''Example using the Buttonbox in PsychoPy:'''
<syntaxhighlight lang="python" line>
<syntaxhighlight lang="python" line>
# import psychopy and rusocsci
# import psychopy and rusocsci
from psychopy import core, visual
from psychopy import core, visual
import serial
import time
## Setup Section
## Setup Section
win = visual.Window(monitor="testMonitor")
win = visual.Window([400,400], fullscr=True, winType = "pyglet", monitor="testMonitor",color=(-1, -1, -1), waitBlanking=True)
# connect to Vertical Sync sensor, find correct com port number
ser = serial.Serial('com3', 115200, timeout=1.0)
# create sync box left corner
rect = visual.Rect(win, .15, .25, pos=(-1, 1),fillColor="white", units="norm")
# wait 5 sec for python to become stabel
core.wait(5)
ser.flushInput()
# define screen OFF by sending a code
ser.write(b'1')
## Experiment Section
## Experiment Section
# show text
# show sync box left corner
rect.draw()
win.flip()
win.flip()
tik = time.perf_counter()
# wait for a sync square
b = ser.read()
tok = time.perf_counter()
# show delay after a flip
print("your timing after a flip: {}s".format(tok-tik))
# as a remark 60Hz/~0.016s 120Hz/~0.008s
## Cleanup Section
## Cleanup Section
</syntaxhighlight>
</syntaxhighlight>
=== Matlab ===
=== Matlab ===
'''Example using markers with the Buttonbox in Matlab:'''
'''Example using markers with the Buttonbox in Matlab:'''
% reset marker
% reset marker
bb.sendTrigger(0) % Note: if resetting the marker is not possible at this moment in code, you can decide to do this later as long as it has taken place long enough before the next marker has to be sent.
bb.sendTrigger(0) % Note: if resetting the marker is not possible at this moment in code, you can decide to do this later as long as it has taken place long enough before the next marker has to be sent.
</syntaxhighlight>
</syntaxhighlight>