315MHz XD-FST XD-RF-5V Wireless Transmitter Receiver Module

Application of transmitter:

1. Wireless calling system,
2. Burglar alarm,
3. Wireless data transmission,
4. Automated data acquisition system

Application of receiver:

1. Wireless remote control switch,
2. Remote control socket,
3. Data transmission,
4. Remote control toys,
5. Anti-theft alarm host

HC-05 Wireless Bluetooth Transceiver RF Main Module Serial For Arduino

Applications:-

1. Wireless communication between two microcontrollers
2. Communicate with Laptop, Desktops and mobile phones
3. Data Logging application
4. Consumer applications
5. Wireless Robots
6. Home Automation

PZIN51000051 Imported V10 Nodemcu Lua Wi Fi Networking Esp8266 Development Board

Applications:-

• Prototyping of IoT devices
• Low power battery operated applications
• Network projects
• Projects requiring multiple I/O interfaces with Wi-Fi and Bluetooth functionalities

SIM800L GPRS GSM Module for Arduino

Specifications:

• Chip: SIM800L
• Voltage: 3.7-4.2V
• Module size: 2.5cmx2.3cm
• TTL serial port for serial port
• Power module automatically boot, homing network
• Onboard signal lights all the way . It flashes slowly when there is a signal, it flashes quickly when there is  no signal