Dual HI/LO Switched Relay Board Kit

There are many applications where you need quick availability of a relay for connection to a particular piece of apparatus. We found in developing our kits that we always needed to have a relay mounted on a PCB within arms reach. So we thought if we need it then many others probably do too. The kit is based around the ULN2003A IC, a 7-channel high voltage, high current relay driver. The inputs are TTL compatible, allowing them to be directly connected to logic circuits operating from a supply voltage of 5V.

Kit 156 Documentation