➢Step descriptions:

✦Step 1:-Connect bluetooth module to Arduino

Vcc-5V, Rx- Tx, Tx-Rx, Gnd-Gnd

✦Step 2:-Connect relay module to Arduino
Vcc-Vcc, Gnd-Gnd, In4- Pin13

✦Step 3:-Connect the Appliance / Load to the replay

✦Step 4:-Download and upload the Ardudroid Sketch

✦Step 5:-Onece uploaded, download and install ArduDroid APP from Play store.

Product list:
『Relay module』  view more ⇒https://www.utsource.net/itm/p/7959282.html
『Arduino nano v3.0』  view more ⇒https://www.utsource.net/itm/p/7929940.html
『HC-06 』  view more ⇒https://www.utsource.net/itm/p/8028777.html

Video on Youtube: