Im trying to use a static relay for the first time. It is an HFS5, supposed to turn on/off at ~5V.
Soldering is not clean but I have triple checked with a multimeter that the connections are ok on lines 1, 2, 3 and 4, that the relay's pins are connected to the lines and that there are no shorts.
1 and 2 are connected to a tablet's 5V DC charger and I checked the voltage is ok on the HFS's input.
However, when I plug in the charger / putting 5V between lines 1 and 2, the connection does not happen between lines 3 and 4 (checking with the multimeter again)
Any idea what can be wrong in your experience ?