==== Input Specification ====

Input data from vehicule is transmited by 4 wire SPI.

=== Link Configuration ===

  * A frame is composed of 8 packs of 2 bytes. 
  * Frame rate is 4 Hz.

== Pack definition ==

One pack is composed of 2 bytes separated in 4 nibbles: one for header and 3 for data.

^header ^Nibble 1 ^Nibble 2 ^Nibble 3^
|Label ID |00.x |x0.0 |0x.0 |

  * **label Id** is the information transfered.
  * Nibbles respectively describe the value in char value, digit per digit.

== Frame definition ==

^order ^header ^Header ^Comment ^unit ^Min ^Max ^
|1 |Speed | | | | |
|2 |Engine Current | | | | |
|3 |Battery Voltage | | | | |
|4 |Pannel Curent | | | | |
|5 |Energy Consumed | | | | |
|6 |Energy Gathered | | | | |
|7a |Battery Current >0| | | | |
|7b |battery current <0 | | | | |

== SPI Link configuration ==

  * Active 0
  * Baudrate 78.125kbps