DIY expansion board for PICÉE


My first expansion card, comprising 4 7-segment displays driven by a ULN2803A on PortB, the anodes being through PortA (RA0 ... RA3).
I added an eightfold dip switch to set each of the 8 bits of PortB to the high state, and a quadruple dip switch, which allows me to activate / deactivate the anode controls, very practical during development , especially when there are input / output conflicts .... It has already been seen ...smile

Well, at the same time, it's a proto card, eh !!!
But hey, it takes time to wire, casually ...

extension part above [300x348px] extension part below [300x338px]
Add comment
  • No comments found

Quelques liens vers les sites de mes amis...

Licence Creative Commons

L'ensemble de ce site hormis une notification spécifique est mis
à  disposition selon les termes de la Licence Creative Commons
Attribution - Pas d'Utilisation Commerciale - Partage dans les Mêmes Conditions
3.0 France.
Licence Creative Commons

Les Fabricants de Circuits Imprimés que j'utilise

Mes fournisseurs favoris

Vérifiez la disponibilité de votre nom de domaine :