TDA2030A 1X18W Audio Amplifier

This module is a three way switch ( COM, NO and NC ) that uses the intensity of the ambient light to control directly the load at the output.
Its adjustment potentiometer allows changing the sensitivity and setting the start threshold of the relay. The relay is energized when it is darker than the threshold.
The optical isolation relay effectively protects the chip and ensures better performance.
This module is used for light detection, brightness detection , lamp control and automatic equipment. Characteristic: - Channels: 1
- Supply voltage: 5VDC
- Output load capacity: 250V 10A AC / 30V 10A DC
- Relay activation current: & gt; 100mA
- Isolation: Yes
- Indicator LED: Green and Red
- PCB Size: 5x2.6 cm />

This mini vibration motor runs on 5 VDC and can be used for Arduino and Raspberry projects. It is a direct current motor.
Mini vibration engine for Arduino and Raspberry Pi 5 VDC features:
- Voltage: 5 VDC,
- Current: 75mA,
- Rotation speed: 1100 (rpm),
- Efficiency: 80%,
- Dimensions: 10x27mm.

16mm fixed lens compatible with Raspberry Pi official HQ Camera (Reference RA094) C-mount, long distance telephoto type (up to 40m) 10 Mpx.

USB DC 5V Bluetooth Audio features:
- You can connect it with your smartphone
- Power: DC 5V micro USB
- Speaker: 4 ~ 8 Ohm - Audio Jack: 3.5mm
- SD card: support MP3 / WMA / WAV / FLAC format
- The transmission distance could be up to 10m
- Size: 50 x 40 mm

XY-V17B is a smart voice module, integrated IO segment trigger, control UART series, ONE_line control of a single serial bus, MP3 standard and other functions; Supports MP3, WAV format decoding, maximum storage capacity on 32G TF card, update audio files from TF memory card via USB data cable to connect computer.
Voice Module MP3 Player features:

- Support MP3, WAV decoder format.
- Support sample rate ( KHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48.
- 24-bit DAC output, support 90dB dynamic range, support 85dB signal-to-noise ratio.
- Fully compatible with FAT16 / FAT32 file system, 32G TF card with maximum support, 32G U disk support.

NodeMcu module based on ESP8266 controller and programming in Lua language.
NodeMcu is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC.
ESP8266-12E is an improved version of ESP8266-12.
It works as a standard WiFi 802.11 b / g / n 2.4 GHz.
USB communication - the CH340 chip. Characteristics of ESP 12E:
- Supply voltage: 3.3V (LOGICAL LEVELS: 3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- TCP Stack / Integrated IP
- PLLs, Regulators and Integrated Power Management Units
- Output Power: 0.15 (W); + 19.5dBm in 802.11b mode

It is a basic cable for connection of Qwiic elements featuresd with two JST 1mm connectors. The Qwiic cables are color coded and the connector is polarized making it easy and quick to connect the components. The cable is 50mm long

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 module. It can be used as a server or as a client.

NodeMcu module based on ESP8266 controller and programming in Lua language. 
NodeMcu is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC. ESP8266-12E is an improved version of ESP8266-12. 
It works as a standard WiFi 802.11 b / g / n 2.4 GHz. 
USB communication - the CP2102 chip. Characteristic of ESP 12E: 
- Supply voltage: 3.3V (LOGICAL LEVELS: 3.3V), 
- Supported protocols: 802.11 b / g / n, 
- Network support: 2.4 GHz, 
- Band: 2400 (MHz), 
- Wi-Fi Direct (P2p), Soft Access Point, 
- TCP Stack / Integrated IP, 
- PLLs, Regulators and Integrated Power Management Units, 
- Output Power: 0.15 (W); + 19.5dBm in 802.11b mode,