Relay with NodeMCU is not working
I found that the 3V isn't enough to power the relay.
https://www.instructables.com/Getting-Started-With-ESP8266LiLon-NodeMCU-V3Flashi/ shows the board supplies USB power (pin VU).
You can remove the jumper that connects signal voltage to relay power and connect the relay board to the USB power.
After that change I could turn the relays on and off, but I could not reliably power 4 relays, 2 relays as shown below seems fine.