prototype 2
Arduino nano + pi crop circle LED with distance sensor + active head amp SoundBrain.
pi = 3.141592654 crop circle happened June 1, 2008 in England.
http://www.psychiclab.net/IBVA/Communication.html
LED has each pi number in block from center part. so each block need to drive different current power. over 39 mA drive connect N channel FET : 2N7000 to output pin.
Connect 200 ohm resistance to limit current around 10 mA for all LED.
Y X 3: 39 mA, R X 1: 9 mA, G X 4: 33mA, B X 1: 10mA, W X 5: 43 mA, R X 9: 80 mA, G X 2: 17 mA, B X 6: 58 mA, W X 5: 43 mA, Y X 4: 52 mA. Total : 442 mA in case all ON.
R LED is actually full color LED. when start ON then Red. but keep continue ON then change color to full color.
Each block of LED light ON by command from IBVA application BS switch serial command.
Distance sensor : 2Y0A21, one sensor for speed control, other sensor for pattern control.
head set for brain wave microphone, SoundBrain
active head amp which i made 23 years ago.
this head amp is older than used for prototype 1.
inside of active head AMP
put head amp to folder.
hold electrode snap
connect electrode snap to head amp input.
connect head amp output to 4 pin connector. PIN 1: + power input. PIN 2: R channel output. PIN 3: GND. PIN 4: L channel output.
PIN 1: + power input connect diode ( 0.2V drop diode ) to DC-DC power input.
head set is under construction.
DC-DC convertor. input 2 V to 5.5 V makes 5 V to two head amp. in case not use this then need to put 5 V to 10 V : 80 mA to head amp.
when 2.2 V input : 256 mA, when 2.7 V input 224 mA, when 3.9 V input 128 mA, when 4.4 V input 114 mA, when 5.2 V input 97 mA.
actual current is depend on brain wave input voltage. high input voltage will increase current.
battery holder and 4 PIN cable to brain wave microphone. SoundBrain output connect to left and right RCA and mini jack.
battery folder and power connector. you can put small battery to head set unit also.
connect output connector to iPhone/iPad/LapTop Mac/other audio recording device input with audio cable can record brain wave. ( recording brain wave frequency is depend on device ). need to use battery operated recording device. iPhone/iPad need to use stereo audio input adapter.
connect audio optical isolation device can be use AC power recording device.
connect output connector to pi crop circle LED's Arduino Nano analog input via level limits, sift and high cut filter circuit. this parts is under construction.
connect USB cable Arduino and LapTop Mac.
for iPhone / iPad connect Redpark C2-DB9 / C2-DBV / C2-TTL with there SDK you can develop own application that get brain wave Raw data stream from Arduino.
Wireless power transmission system. put wireless power receiver to under the pi crop circle LED. it is Nikola Tesla's technology, begging of 1900, Tesla Tower at Shoreham Long Island New York.
prototype 2
