My connections are : ac mains to ac of hlk-pm01, dc +ve to vin of nodemcu and relay +ve, dc -ve to gnd of nodemcu and relay -ve. From nodemcu d5 to relay input.
When i checked the nodemcu using tester, neon light glown up. If i touch that, it had current. Ideally it should not, right?
I checked hlk-pm01 of hilink and found it was giving 5v output and 1.9 A current when measured using multimeter.
Pls help.