The present invention relates to an outer wall for electronic control (300; 400; 500), particularly comprising: an outer portion (1) which includes at least one button (5; 6) and a fixed portion (2), each button (5; 6) and said fixed portion (2) having an opening (3) therebetween; an inner portion (310; 410; 510) which includes, in particular, a printed circuit (12); characterized in that the outer wall (300; 400; 500) comprises at least one metal part (320; 420; 520; 530) capable of capturing, at at least one of the openings (3), static electricity which would likely affect the printed circuit (12) in the absence of said metal part (320; 420; 520; 530).