Módulo NE555 Ajustável de Frequência e Ciclo de Trabalho, Gerador de Sinal de Onda Quadrada
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Vraiment un petit circuit avec toutes les possibilités du NE555. Pas la peine de perdre du temps à en câbler un sur une plaquette proto ... De toute façon ça vous reviendra plus cher que ce petit module !
Circuit imprimé de bonne qualité. On fait dans le miniature avec un bon fonctionnement du NE555
in testing this unit, all the frequency ranges function. The higher 3 ranges have very little ringing and produce a good square wave. On the lowest range it produces more of a saw tooth then a square wave. So some filtering would be needed to run it in the lowest speed if your project needs a clean square wave. Will have to do some additional testing on the adjustments, but on initial test there is a few gaps in the ranges, but that may just be my testing.
muito bom transporte novamente. Continue!
Muito satisfeito
all good
ame as above nice bit of kit to generate a pulse wave fed into the low tension of an old car ht coil and ya have a cheap electric fence??
PERFETTO!
Producto en buen estado, falta probarlo
bon produit reste a teste merci