Voice Module MP3 Player

A compact, low-power Bottom Effect System Transceiver.
Transceiver based on the SI4463 Silicon Labs chip.
Industry standard model.
In full power operating conditions, open the communication distance up to 2000 km.
Much more than the SI4432.
Si4463 is a high performance 433 MHz transceiver. and low current consumption of the EZRadioPRO series, which includes a complete transmitter and receiver.
Higher sensitivity -126dBm.
The maximum output power of + 20dBm, support (G) FSK, 4 (G) FSK, (G) MSK, OOK and ASK modulation.
The data rate in the range of 100bps ~ 1Mbps.
Operating voltage of 1.8V ~ 3.6V.
FCC approval / IC. 2km radius SI4463 433MHz RF Arduino Telemetry features:
- Supply voltage: 1.8 ~ 3.6VDC

This small GPS module is an ideal module for Arduino. The NEO-7 series is characterised by the exceptional performance of the highly sensitive u-blox 7 GNSS (GPS, GLONASS, QZSS and SBAS).

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.

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 - CP2102 Chip
Characteristic:
ESP 12E ESP8266 ESP12E NodeMcu Lua Wireless Development Board CP2102 WiFi features:

- 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
- Integrated TCP / IP stack
- PLL, regulators and integrated power management units
- Output power: 0 , 15 (W); + 19.5dBm in 802.11b mode

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

Blink any color you need! Use the Tri-Color LED board as a simple indicator, or by pressing the red, green and blue channels, you can create any color. Very bright output.
This is a common anode design: to turn on a channel, you simply need to ground one of the R / G / B pins to illuminate that channel.
Lilypad is a wearable E-textile technology developed to have large connection pads to attach to clothing. Lilypad Tri-Color LED RGB features:
- Operating voltage: 3 - 5 VDC
- Design of common anode
- Density of the PCB: 0.8 mm
- Outside diameter: 20 mm

NFC module for Educational STEAM Kit.  Near field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimeters. Compatible with almost any microcontroller, Arduino, PIC, AVR. It can be used in Access Control projects and Alarm projects. RFID PN532 NFC Module features:
- Based on the NXP PN532 chip, it can be used for non-contact communication of 13.56M.
- Greater effective communication distance of 3 cm.

NFC module for Educational STEAM Kit.  Near field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimeters. Compatible with almost any microcontroller, Arduino, PIC, AVR. It can be used in Access Control projects and Alarm projects. RFID PN532 NFC Module with Card and Pendant features:
- Support i2C, SPI, High Speed UART - Support RFID reading and writing - Support P2P communication with peers - Support NFC with phone - Work in NFC Mode or RFID reader/writer Mode - RFID reader/writer supports: - 1k, 4k, Ultralight, and DesFire cards ISO/>

This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, from the TTL 8 Channel High Trip 5V 10A Relay Module features:
- Channels: 8 (independent protected with Optocouplers)
- Supply Voltage Vcc: 5Vdc
- Output Current: 10A
- High trip min 3.3V input IN1. ..IN8
- Relay activation current: 5 ~ 10mA
- Isolation: Yes
- Indicator LED: For each channel
- Dimensions: 55x 139mm
- Weight: 120g
COM GND jumper input: connects GND optocouplers and GND of the circuit

The ADS1115 is an external 16-bit ADC + a built-in programmable gain amplifier (or PGA), which can be very useful for certain Arduino and ESP8266 projects. This is ideal when more resolution or more analogue pins are required. You get better accuracy, as well as relieving the processor of this burden.