Costruisci+una+penna+a+infrarossi+per+la+wiild

Sequenza fotografica autoesplicativa di un modello di IR-pen autocostruita. Materiali necessari: evidenziatore, pinza, basetta, taglierino, vano pile, pulsante elettrico, stagno, saldatore, forbici, pistola per colla a caldo, colla. I led possono essere: TSAL6400, TSAL5300 o TSAL5100 della Vishay o equivalenti di altre marche; le caratteristiche necessarie del led sono alta luminosità e lunghezza d'onda di 940nm.
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