DS1302 Real Time Clock RTC Module AVR ARM PIC

Shield Ethernet for Arduino boards and compatible based on the Wiznet W5100 chip.
Provides an easy way to connect your module to the local network now internet.
Compatible with the official Arduino Ethernet library.
With this shield you can build a web server.
It can be used as a server or as a client.
It has support for a microSD that can be used to store files for distribution on the network. Ethernet Shield W5100 Web Server features:
- Controller: Wiznet W5100
- Supports protocols TCP and UDP
- Supports up to 4 simultaneous connections
- Compatible with all Arduino versions: UNO, mega 1280/2560
- Dimensions: 74 x 54 x 25mm

The Ethernet module for Arduino and compatible boards based on the Wiznet W5500 chip, faster than the previous W5100. It provides an easy way to connect your module to the local network and internet based WIZNET with a TCP/IP interface. Compatible with libraries with the same Ethernet API. A web server can be built with this UNO board shield. It can be used as a server or as a client.

SONOFF DUALR3 is a WiFi based 2-gang switch that can independently connect and control two connected devices or lights - this simply means that 1 SONOFF DUALR3 control switch is equivalent to 2 Sonoff basic switches!

SIM808 GPRS GSM GPS Bluetooth SIM Quadband features:
- SIM card SIM808 GPRS GSM GPS Bluetooth SIM
- Supply voltage range: 3.4-4.4V
- Four bands GSM 850/900/1800 / 1900MHz
- GPRS multi-slot class 12/10
- GPRS mobile station class B
- According to GSM phase 2/2 +
- Class 4 (2 W at 850/900 MHz)
- Class 1 (1W at 1800 / 1900MHz)
- Control by AT commands (3GPP TS 27.007.27.005 and enhanced AT Commands from SIM Com)
- Operating temperature: -40 to + 85 ° C
- PCB dimension: 38x38mm
- GPS sensitivity
- Tracking: -165dBm Cold start Sensitivity
- Cold start: -147dBm
- Time to first solution
- Cold start: 30 s
- Start to warm up: 28s
- Already hot: 1s - Accuracy

Buzzer alarm to convert electrical to acoustic signals in robotics devices and Arduino projects.
Buzzer 5V Active Buzzer 4 to 7V DC features:

- Input voltage: 4V to 7V
- Diameter: 12mm
- Height: 9.5mm
- Spacing Pins: 7.6mm
- Maximum Current:

This cable is designed to facilitate the extension of the sensor cable, being perfect for applications that require greater distances. They can be joined together to extend your sensors up to a maximum length of 60 metres.

M12 High Resolution Lens, 14MP, 184.6° Ultra wide angle, 2.72mm Focal length, Compatible with Raspberry Pi High Quality Camera M12.

It is a mini GPS module including a NEO-6M chip and an EEPROM memory chip.
The SMA antenna port is On-board IPEX and cell phone button battery ensure robust positioning efficiency and fast satellite discovery speed.
Serial port provides simple initial knowledge to stay in touch with the most compatible Arduino-compatible MCU STM32. Characteristic: - Supply voltage: 3.3 - 5 VDC
- Operating current: 45 mA
- Communication speed: 9600 Bauds configurable from 4800 to 115200 Bauds
- Navigation update: 5 Hz max. (1 Hz default)
- Capture time: at the start 27s, in operation 1s
- Operating temperature: -40 ° C - + 85 ° C
- separate GPS antenna (not included ): 18x18 mm
- Size: 22x30x13 mm

SIM800L GPRS GSM SIM Board Quadband features:
Package includes:
- SIM800L module,
- 2x pin headers,
- Spring antenna,
- 3G PCB antenna - 15cm cable.
- Supported SIM format: Micro SIM.