LED box specification

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Forsker edited this page Jun 22, 2018 · 1 revision

Update: the nodeMCU ESP8266 has been replaced with an Arduino Mega

Main functionality

Stream live MEA/neural data and convert data into light show.
Play back a MEA/neural recording
Send stimulation back to neurons through buttons.

Mode selection

Preset modes selectable from a button panel (or by serial from PC):

Visualizing neural data:
- From a recording (from SD card or serial input)
- Live stream (serial input to Arduino from PC, Raspberry Pi or Pioneer LX)
Not using neural data:
- Random mode (which kind of looks like neural activity)
- Other fancy light shows: Pulse, alternating colors, etc.

Hardware

LED box
LED strips: ws2812b (240 LEDs)
Arduino Mega
1000 uF capacitator (between 5V and GND from power supply)
470 ohm resistor (on data output pin 6)
5V 10A Power adapter (with option to power from Pioneer LX or an external battery)
- LEDs: 5V and minimum 5A (the LEDs draw around 4A during normal operation)
- Arudino Mega: 5V
Connector panel
- Power (for connection of battery, power adapter og power supply)
- USB serial
Mode selector panel
Further extensions: stimulation button panel

Software

Arduino code listning to serial
FastLED library for LED interface
PC code to get neural data stream and send to Arduino
MEAME: server side application interfacing MEA at Øya PC. Sends neural data stream.

Possible versions

Large 240 LED box (current version)
Small portable box (possible to bring to conferences and travel with)
Screen simulation

Inspiration