Buzzer PCB Active 5V Black

- HC-05 Bluetooth transceiver module with base
- The bluetooth module HC-05 is one of the best options for projects where you need wireless communications.
- The transceiver module (transmission / reception) allows bluetooth wireless connections like master or slave, works in a transparent way as if we made a RS-232 TTL serial connection with cable.
Bluetooth Transceiver Module HC-05 Wireless features:
- Chipset CSR BC417
- 3.6 to 6 Vdc power supply
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Reach approx. 10m
- Security: Authentication and encryption.
- Speed-> Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps

 Master Slave Bluetooth Modul for Arduino iOS Android. The HM10 supports Bluetooth 4.0 (low energy) and therefore has a relatively low power consumption.

Reprogrammable voice module with large storage capacity that can support the maximum 1GB SD card, and support audio files of WAV and ad4 format.
Wtv020-sd module uses wtv020sd-20s Voice chip as master core, with MP3 control mode, one to one key control mode (control 3 voice groups or 5 voice groups), 2-wire serial port control mode and loop play mode after power on. Control mode is set by programming the voice chip, and can't change to another control mode during operation, what control mode do you need, just tell us, we can customize it for you.

1 Channel Relay Module DC 5V 10A Low/High Trigger for Arduino features:
- Channel: 1 (protected with Optocoupler)
- Supply voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- Trigger signal type jumper (low / high)
- LED indicator
- Dimensions: 30x 54mm
- Has a jumper that allows to choose type of trigger signal (low / high)
- This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)

An extremely accurate I2C real time clock (RTC) (DFR0469) with crystal compensation and internal rechargeable battery.

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

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.

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

This LED power amplifier with a Sonoff power adapter is designed to extend existing Sonoff LED lighting systems. With this signal amplifier, you have the option to extend your Sonoff LED strip system, as the included power adapter provides sufficient power.

This module specially designed for Arduino will allow you to generate a light of any color (RGB) quickly and accurately.
The LED Bulb Module RGB, consisting of an LED capable of creating any color using RGB, has a PWM voltage input with three pins. These are capable of shining in a wide range of colors thanks to the mixture of the three colors. primary (red, green and blue).
These types of diodes are called RGB and are made up of three red, green and blue diodes in the same package.
Thanks to the variation of the intensity of these three diodes, we can create a composition of colors. With this led you can handle more than 16.5 million colors.