Sequent8217s 28-and-up 8220PiRelay 88221 add-on for the Raspberry Pi supplies 8x relays with photo-coupling isolation for controlling devices on a load of 250V AC7A or 30V DC10A. There is also an optional 4.3-inch HDMI touchscreen. Whereas Sequent Microsystems earlier relay add-ons for the Raspberry Pi 8212 the Raspberry Pi 8-Relay Card and line-switching 4-Relay 8212 8230.
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