update readme

Co-authored-by: Alex L <leightonalexandra@gmail.com>
Co-authored-by: Filipe Carvalho <34546039+filcarv@users.noreply.github.com>
Co-authored-by: Artur_Silva <artur.silva@neuro.fchampalimaud.org>

Author: 4 people

README.md

@@ -1,3 +1,38 @@
+## Harp LED array
+
+Controlling LED arrays that require more power. Ideally for opto-stimulation experiments.
+
+![harpledarray](./docs/assets/pcb.png)
+
+### Key Features ###
+
+* Controls up to 2 separate RGB LED
+* Arrays and one common Infrared LED
+* Two operation modes for each RGB LED Array: PWM or Interval
+
+### Connectivity ###
+
+* 1x clock sync input (CLKIN) [stereo jack]
+* 1x USB (for computer) [USB type B]
+* 1x flat cable
+* 2x Digital Inputs (IN0, IN1) [flick lock male pins]
+* 2x Digital Outputs (OUT0, OUT1) [flick lock male pins]
+* 1x connector for 2 LED Arrays [10-pin flat-cable]
+
+## Interface ##
+
+The interface with the Harp board can be done through [Bonsai](https://bonsai-rx.org/) or a dedicated GUI (Graphical User Interface).
+
+In order to use this GUI, there are some software that needs to be installed:
+
+1 - Install the [drivers](https://bitbucket.org/fchampalimaud/downloads/downloads/UsbDriver-2.12.26.zip).
+
+2 - Install the [runtime](https://bitbucket.org/fchampalimaud/downloads/downloads/Runtime-1.0.zip).
+
+3 - Reboot the computer.
+
+4 - Install the [GUI](https://bitbucket.org/fchampalimaud/downloads/downloads/Harp%20Led%20Array%20v2.2.0.zip).
+
 ## Licensing ##
 
-Each subdirectory will contain a license or, possibly, a set of licenses if it involves both hardware and software.
+Each subdirectory will contain a license or, possibly, a set of licenses if it involves both hardware and software.