Liberado o código e parametrizado a leitura da temperatura interna.
Corrigido erros no circuito que ocasiovam falhas na leitura
Liberado o codigo de leitura interna de temperatura e sua parametrização
Me parece que a falha estava no circuito devido a um curto no aref.
apenas fiz uma limpeza na placa e agora parece estar fazendo as leituras
correntamente como podem ser visto abaixo:

/temp/internal/21.75/
/temp/heatsink/21.73/
/temp/room/22.85/
/temp/internal/21.58/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.42/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.75/
/temp/heatsink/21.73/
/temp/room/22.90/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/23.00/
/temp/internal/21.58/
/temp/heatsink/21.73/
/temp/room/22.90/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.85/
/temp/internal/21.50/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.85/
/temp/internal/21.66/
/temp/heatsink/21.73/
/temp/room/22.95/
/temp/internal/21.50/
/temp/heatsink/21.73/
/temp/room/22.95/

Merge branch 'controle_laser_regulador_corrente'