Buzzer 5V Passive

5V Relay Module with 8 opto-coupled channels.
This module can be directly controlled by the microcontroller ( Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL).
8 Channel Arduino 5V 10A Relay Module features:

- Channels: 8 (independent protected with Optocouplers)
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Isolation: Yes
- LED indicator: For each channel
- Dimensions: 54x 135mm

It can be used to control the microprocessor of the Arduino AVR PIC system and others, or as a digital potentiometer rotating the rotary encoder can be counted in positive and negative, depending on the direction of rotation; with the button of the rotary encoder can be reset to its initial state, which starts counting from 0.

NRF24L01 Shield Atmega48 Wireless Module SPI To IIC I2C TWI Interface features:
- Operating voltage: 5V
- Wait time of the module receives the data: more than 2S
- The waiting time of the module sends data: more than 300
- Transfer speed: 50 Byte / S (theoretical value)
- I2C / TWI address: 0 x 47 (decimal 35)
- Address NRF24L01: 0 x 34, 0 x 43, 0 x 10, 0 x 10, 0 x 01 (from lowest to highest)
- Size: 44 x 23 mm

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

Relay 5VDC SPDT 5VDC JQC-3FF for industrial applications, automation and process control and consumer electronics. Relay SPDT JQC-3FF 5VDC-1ZS features:
- Coil voltage: 5 VDC,
- Coil power: 360 mW,
- Switching capability:
 - 10A @ 277 VAC
 - 12A @ 125 VAC
- Operating time: between 5ms and 10ms,
- Plastic sealed and flux proofed types available,
- Environmental friendly product (RoHS compliant),
- Working temperature: -40ºC to 70ºC,
- Outline dimensions: 19.0 x 15.2 x 15.5 mm.

ESP32-S3-DevKitC-1-N8 general-purpose development board based on the ESP32-S3-WROOM-1 chip.

The network module communicates with the Arduino type board through the SPI protocol ideal for projects with ARDUINO, PIC, AVR, STM32. ENC28J60 Ethernet LAN Network Module for Arduino AVR LPC STM3 features:
- Chip ENC28J60 Microchip
- Module: 10Base-T
- 3.3V power
- SPI interface
- 25Mhz speed
- LED status LED
- Hanrun network transformer
- Network Interface board HR911105A
- Operating temperature: -40ºC to + 85ºC
- Dimensions: 55x 35x 16 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.

Small peristaltic pump is a type of hydraulic positive displacement pump used for pumping a variety of fluids.