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Activation des 16 relais #6

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nicolasdb opened this issue Jun 14, 2022 · 4 comments
Open

Activation des 16 relais #6

nicolasdb opened this issue Jun 14, 2022 · 4 comments

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@nicolasdb
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nicolasdb commented Jun 14, 2022

image

j'utilise 2x le module 8 relay
image

C'est du trigger low j'ai du donc jouer avec des transistors pour les activer.

https://www.utmel.com/components/bc337-npn-transistor-pinout-datasheet-and-equivalents?id=347

@nicolasdb
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J11 et J13 sont les pin 5V et GND que j'ai externalisé du header 10pin pour choisir entre une alimentation provenant de la carte controle ou via une alim externe sur les connecteurs en bas à droite du module.

@nicolasdb
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image

image

@nicolasdb
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nicolasdb commented Jun 18, 2022

image

J'alimente via power externe supplémentaire, un vieux chargeur gsm 5V 450mA
donc

  • retirer le jumper
  • appliquer 5V sur GND+JDVCC

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