Ece516/neurosky_eeg_brainwave_chip_and_board_tgam1.pdf. Mindflex duel hacking (50HZ and output conversion to RAW) Con un atraso de casi un año por fin los reyes me han traido el Mindflex !! , la nueva version, con la ventaja que trae dos sensores EEG (electroencefalograma) independientes.Despues de probarlo un dia, me aburrio, no parece responder siempre igual a nuestro pensamiento, aunque si es claro que si por ejemplo cuentas para atras de 7 en 7 o deletreas el abecedario al reves detecta diferente actividad cerebral, que si estas con los ojos cerrados y no piensas en nada, pero algunas veces sin que hagas nada detecta unos cambios exagerados. Investigando un poco se ve que esta hecho con el módulo EEG ThinkGear de la empresa NeuroSky.
Configuracion de filtro 60/50 Hz y selección modo normal/raw Switch de selección de modo Para procesar los datos he realizado unas pruebas en Matlab el protocolo en modo RAW no parece ser igual que en las versiones anteriores, segun lo que veo, es asi : 0xfd0xFFBLBH raw=BL+256*BHif (raw > 32768) raw=raw-65536 Sigo investigando... Fun With MindFlex | 5dacf0154e72d2d055ee3887d97aa6c4. For this valentines day, my wife got me a MindFlex from Mattel.
I have been wanting one of these since they have been on the market. It is a really interesting game where you control a foam ball with your mind. The ball will rise with the more focused you are. Letting your mind wonder and as Morphius likes to say “free your mind”, the ball will lower. MindFlex doesn’t read your thoughts, rather it picks up on level of activity. MindFlex uses a NeuroSky chip to compute the brain data. Delta (1-3Hz): sleepTheta (4-7Hz): relaxed, meditativeLow Alpha (8-9Hz): eyes closed, relaxedHigh Alpha (10-12Hz)Low Beta (13-17Hz): alert, focusedHigh Beta (18-30Hz)Low Gamma (31-40Hz): multi-sensory processingHigh Gamma (41-50Hz) Along with connection quality, and the proprietary attention and meditation values. Inspired by Eric Mika’s post, I set out to replicate and extend his project. Basically, you need a shared ground and a wire extending the Tx pin for the NeuroSky chip circuit.
Ground Tx Pin Top View. Bluetooth SMD Module - RN-42. Description: This module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters being transmitted back and forth. Press the 'A' character from a terminal program on your computer and an 'A' will be pushed out the TX pin of the Bluetooth module.
The RN-42 is pin a compatible substitution for the RN-41. The RN-42 is perfect for short range, battery powered applications. Supporting multiple Bluetooth profiles such as SPP and HID and simple UART hardware interface, it is simple to integrate into an embedded system or simply connect to an existing device. Features: Documents: How to Hack Toy EEGs | Frontier Nerds. Arturo Vidich, Sofy Yuditskaya, and I needed a way to read brains for our Mental Block project last fall. After looking at the options, we decided that hacking a toy EEG would be the cheapest / fastest way to get the data we wanted. Here’s how we did it. The Options A non-exhaustive list of the consumer-level options for building a brain-computer interface: Open EEG offers a wealth of hardware schematics, notes, and free software for building your own EEG system. The Nerosky MindSet is a reasonable deal as well — it’s wireless, supported, and plays nicely with the company’s free developer tools.
For our purposes, though, it was still a bit spendy. Given all of this, I think the Mind Flex represents a sweet spot on the price / performance curve. But first, the inevitable caveat: Use extreme caution when working with any kind of voltage around your brain, particularly when wall power is involved. The Hardware Here’s the basic layout of the Mind Flex hardware. The Hack Parts list: Software list: