RF wireless module 433MHZ
you can use this module with arduino or without it
you can use this module to send data wireless or to make a remote control
the easiest way to use this module to make a remote control is by using HT12E and HT12D ICs which will encode and decode the data and they also available in entqan
power supply adapter for raspberry pi-3 5V-2.5A
Linear Magnetic Hall Effect Sensor Module for Arduino
BreadBoard Big size metal plate
Raindrops Rainwater Sensor Module
Ecg module AD8232 pulse heart ecg monitoring sensor 












