Passive Buzzer 3-5V Low Level Trigger

Red, yellow and green LED traffic light mini kit ideal for educational and beginner Arduino projects.

The Raspberry Pi High Definition (HD) camera board connects to any Raspberry Pi or Compute Module to create HD photos and video.

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.

This product is a Bluetooth module BLE 4.0 UART without adapter, low energy with serial transceiver.
Logic level conversion circuit. No external level of 5V is needed to become a 3.3V level.
The power input port is protected against the anti-circuit, to avoid the inverted accidental power plug, which leads to the module burn
HM-10, Bluetooth module HM-11 series using IT chip CC2540 / 2541, configuration 256Kb space, support
In commands.
You can change the paper (master and slave mode) and the baud rate, the device name, the pairing of the password and other parameters, convenient and flexible. BLE 4.0 UART Bluetooth Low Energy Module without Adapter features:
- Version AT-09 CC2541 Arduino Android IOS BLE
- Serial transceiver

5V water pump with USB connector  for fountain, aquarium, pool, water tank, humidifier, green wall decoration, candle

decoration, solar water circulation,etc.

Wired Bone Conductor Transducer - 8 Ohm 1 Watt
This amazing speaker does not have a movable cone like most From the speakers you've seen, instead, a small metal rod is wrapped with the voice coil.
When the current is driven through the coil, the magnetic field makes a piece of metal expands and contracts, if pressed against a flat surface or cavity makes it a speaker! Often these size transducers are pressed against the jaw or ear bone to turn the skull into a speaker socket.
The effect is a perfect quality sound that comes from your head and no one else can hear it. You can also press it against your elbow bone and stick a finger in your ear to listen to the audio transmitted through your arm!

TDA2030A 1X18W Audio Amplifier features:
- Chip: TDA2030A
- Power supply: DC 6V ~ 12V
- Channel type: Single channel - Output power: 1 x 18 W
- Output output: 4 ~ 8 Ohm
- Mono mode
- Size (LxWxH): 31.6 x 23.5 mm

The perfect solution for not worrying about the length required on your RGB LED strip, now with a WiFi driver compatible with the eWeLink APP and voice assistants like Google Home or Alexa. Also includes a 24-key IR remote control.

You will be able to turn on and control your strip lights anytime and anywhere, and control it with just a click on your smart phone or tablet via APP eWeLink, or voice assistants, without time and distance limitations.

The bluetooth HC-05 module is one of the best options for projects where you need wireless communications.
The transceiver module (transmission / reception) allows bluetooth wireless connections as master or slave, works transparently as if making a wired RS-232 TTL serial connection. Arduino Wireless Module HC-05 HC05 Bluetooth features:
- CSR BC417 Chipset
- Power: 3.3.
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Approximate range: 10m
- Security: Authentication and encryption
- Speed- & gt; Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps
- Supports AT commands for configuration through a serial port
temperature: -20 ºC to +75 ºC

LED green.
The color option allows you to adjust the LEDs to your liking to sew clothes or anything else you can dream of.
Lilypad is a wearable E-textile technology developed to have large connection pads to attach to clothing. Lilypad LED Green features:
- Operating voltage: 3 - 5 VDC
- Very bright
- Density of the PCB: 0.8 mm
- LED color: green
- Size: 5.5x12.5 mm
- 1 LED included