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Relay board shield for Raspberry PI

Former Member

Hello,

 

We have been breaking our heads to find a Relay board shield that just plugs into the Raspberry PI, since many of them require that you also buy an Arduino

to plug into the board.

 

To save you some further search,  here is the Shield:

 

http://www.robogaia.com/4-relays-raspberry-pi-plateshield.html

Parents

  • WARNING !!!

     

    To anyone buying this relay board - although the relays are rated for 250V AC it will not be safe to connect to the the UK AC mains.

     

    This is important - if you connect this board to the mains you risk serious injury or death.

     

    MK

  • in reply to michaelkellett

    I'm with Michael on this.

     

    While it appears that the layout has a large earth plane between the high voltage and low voltage sides, there is no connection for an earth. (from the available pictures)

    Given the close proximity of the underlying components, I would strongly suggest that anyone contemplating mains voltages fit a piece of insulating film on the underside of the board to ensure accidental contact is NOT made by fingers/parts or anything else.

     

    For the designers

    1. You should add a decent earth connection point, (OR stop advertising the mains rating of the relays.)

    2. Consider fitting the connectors together to give better physical strength (since they should be 230v rated).

     

    Mark

Reply
  • in reply to michaelkellett

    I'm with Michael on this.

     

    While it appears that the layout has a large earth plane between the high voltage and low voltage sides, there is no connection for an earth. (from the available pictures)

    Given the close proximity of the underlying components, I would strongly suggest that anyone contemplating mains voltages fit a piece of insulating film on the underside of the board to ensure accidental contact is NOT made by fingers/parts or anything else.

     

    For the designers

    1. You should add a decent earth connection point, (OR stop advertising the mains rating of the relays.)

    2. Consider fitting the connectors together to give better physical strength (since they should be 230v rated).

     

    Mark

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