So I bougth from Ebay an HC-06 bluetooth module for less than 5$ and a second-hand Minflex Headset replacment for about 15$ once, both Mindflex and Mindflex Duel headset could be modified.
They contains different Thinkgear ASIC chip version .
I bougth it from US but I live in Italy so I had to switch nocth filter from 60Hz to 50Hz.This is very simple in Mindflex Duel headset model only, unsoldering a connection with a desoldering pump (5$ in all eletronics store) and soldering again (solder and pond 10$ in all eletronics store) on opposite site (see pictures below) . Instead Mindflex headset comes with a notch filter driven by an SMD resistor that is really annoyng to desolder and it has to solder in opposite site or replaced by an bigger ¼ resistor connected to ground, little bit tricky.
Thinkgear Mindflex Headset
Thinkgear Mindflex Duel Headset
So I suggest to whom has few practice in solder and unsolder ,as I am , and live in 50Hz countries to buy a Mindflex Duel headset then It will be more simple to switch notch filter.
Connect RX, TX, VCC and GRD as showen in web tutorial and from that point you are able to develop a driver in order to send to Thinkgear two sequential commands :
First command is ‘(0x02): 57.6k baud, normal+raw output mode and then send a ‘bit (____0100): Set/unset to enable/disable raw wave’.
The game are based on movimg the pad using Attention eSense signal plus some other computations but I used raw signal to develop a blink filter in order to use it like a command : when I blink eyes three times I stop/start the pad.
This is my very first prototype video, enjoy it.
A complete game It will be avaiable soon on Play store.
ANY EEG HEADSET MODIFICATION AND USE IT IS AT YOUR OWN RISK. MAKE SURE YOUR HEADSET IS NOT CONNECTED BY WIRE TO ANYTHING PLUGGED INTO THE MAINS.
Comments will be publish only if related to topic.
UPDATE – 21/10/2018 – New full version is almost complete, it brings these features : save raw EEG data, ASIC Attention and Meditation levels, ASIC Power EEG frequency bands, FFT Magnitude frequencies (0.5 – 70Hz).
UPDATE – 25/09/2018 – New full version [Brain Raw Visualizer Pro] available soon, with saving and charts configuration… very soon new details.
Brain Raw Visualizer [demo version*] (Standard Imagery Software)
The Brain Raw Visualizer application provide charts and spectrum representation of your brain’s activity using a Thinkgear ASIC.
Standard Imagery is not affiliated with the makers of the Thinkgear ASIC.
Fp1 electrode – output microvolts (µV) line chart [4 seconds ~] – Poor signal output [No skin detection warning] – Blink and artifacts detection filter.
Power EEG frequency bands (brainwaves) from up to down : delta (0.5 – 2.75Hz), theta (3.5 – 6.75Hz), low-alpha (7.5 – 9.25Hz), high-alpha (10 – 11.75Hz), low-beta (13 – 16.75Hz), high-beta (18 – 29.75Hz), low-gamma (31 – 39.75Hz), and mid-gamma (41 – 49.75Hz) [1 second ~]
Attention and Meditation levels [0-100] [1 second ~]
Delta (0.5 – 2.75Hz) line chart
Theta (3.5 – 6.7Hz) line chart
Alpha (7.5 – 12.5Hz) line chart
Beta (12.5 – 30Hz) line chart
Gamma (31 – 49Hz) line chart
Frequencies (0.5 – 70Hz) bar chart [2 seconds ~]
Spectrum (4 – 70Hz) [250mm ~]
ANY EEG HEADSET MODIFICATION AND USE OF THIS SOFTWARE IS AT YOUR OWN RISK. MAKE SURE YOUR HEADSET IS NOT CONNECTED BY WIRE TO ANYTHING PLUGGED INTO THE MAINS.