1A LITHIUM BATTERY CHARGING BOARD (2 pcs)

The TP4056 based VMA321 module is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries.
Specifications

input voltage: 4.5 to 5.5 VDC (by on-board USB connector)
charging current: 1 A adjustable
charge accuracy: 1.5 %
full charge voltage: 4.2 V
charge indicator: green = fully charged, red = charging
working temperature: -10°C to +80°C
weight: 10 g
dimensions : 25 x 19 x 10 mm

2,4GHz NRF24L01 WIRELESS TRANCEIVER MODULE (2pcs)

This module based on Nordic nRF24L01, highly integrated, ultra low power (ULP) 2Mbps RF transceiver for the 2.4GHz ISM (Industrial, Scientific and Medical) band. Nordic nRF24L01+ integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the Enhanced ShockBurst hardware protocol accelerator supporting a high-speed SPI interface for the application controller.
Features

worldwide license-free 2.4 GHz ISM band operation
250 kbps, 1 Mbps and 2 Mbps on-air data-rate options
enhanced ShockBurst hardware protocol accelerator
ultra low power consumption - months to years of battery lifetime

Specifications

power supply: 1.9 - 3.6 V
IO port working voltage: 0 - 3.3 V
transmitting rate: +7 dB
receiving sensitivity: < 90 dB
transmission range: 250 m in open area
dimensions: 15 x 29 mm

CURRENT SENSOR ACS712 MODULE - 20 A

This current sensor module guarantees precise measuring for commercial systems. Especially designed for easy installation. Can be used for motor control, load detection, overcurrent.
Specifications

supply voltage: 5 VDC
measurement range: -20 to +20 A
output voltage: VCC/2 at no load
scale factor: 100 mV per A
dimensions: 31 x 13 x 12 mm

TEMPERATURE PROBE DS18b20 & ARDUINO COMPATIBLE ADAPTER

The VMA324 ( DS18B20) Digital Thermometer provides 9 to 12-bit (configurable) temperature readings which indicate the temperature of the device.
Features

DS18B20 specs: unique 1-wire interface requires only one port pin for communication
multidrop capability simplifies distributed temperature sensing applications
requires no external components
can be powered from data line, power supply range is 3.0 V to 5.5 V
zero standby power required
measures temperatures from -55°C to +125°C (Fahrenheit equivalent -67°F to +257°F)
± 0.5°C accuracy from -10°C to +85°C
thermometer resolution is programmable from 9 to 12 bits
converts 12-bit temperature to digital word in 750 ms (max.)
user-definable, non-volatile temperature alarm settings
alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)
3-wire adaptor for Arduino included

Specifications

dimensions stainless steel tube:
diameter: 6 mm
length: 30 mm
dimensions cable:
diameter: 4 mm
length: 36" (91 cm)
connections:
red: 3-5 V
black: ground
yellow: data

COLOR SENSOR TCS3200 MODULE

The TCS230 senses color light with the help of an 8 x 8 array of photodiodes. Then using a Current-to-Frequency Converter the readings from the photodiodes are converted into a square wave with a frequency directly proportional to the light intensity. Finally, using the Arduino Board we can read the square wave output and get the results for the color.
Features

high resolution conversion of light intensity to frequency
programmable colour and full scale output frequency
communicates directly with a microcontroller
single supply operation (2.7 V to 5.5 V)
power down feature
non-linearity error typically 0.2% at 50 kHz
stable 200 ppm/°C temperature coefficient

Specifications

S0-S1: output frequency scaling selection inputs
S2-S3: photodiode type selection inputs
out pin: output frequency
OE pin: output frequency enable pin (active low), can be impending when using

LINE TRACKING SENSOR TCRT5000 MODULE

The Line Tracking Sensor based on TCRT5000 is an type of infrared reflectance sensor, and is commonly used in line following robots, it is mounted at the bottom of the robot chassis. The line tracking sensor works by detecting reflected light coming from its own infrared LED and by measuring the amount of reflected infrared light, it can detect transitions from light to dark (lines) or even objects directly in front of it.
Features

sensor adopts TCRT5000, high sensitivity
sensitivity adjustable by potentiometer
working voltage: 3.3 V - 5 V
operating current: 20 mA
digital switch output (0 and 1)
has 2 fixed bolt holes, convenient installation
small board PCB size: 42 x 10.5 mm
power indicator light (red) and digital switch output indicator light (green)
detection reflection distance: 1 mm - 25 mm

END-STOP SWITCH MODULE (2pcs)

Features

robot bump switch
end stop switch that can be used for many purposes
mounts on your robot project or 3d printer
mechanical limit switch acts as a bump stop sensor
2 mounting holes on the board

Specifications

operating voltage: 5 V
connection : 3 pins, VCC = 5 V, GND and OUT
dimensions: 25 x 15 mm
weight: 4 g

UV LIGHT SENSOR GUVA-S12SD MODULE

Use this analogue UV sensor module extends to extend your light sensing spectrum. Its UV photodiode will detect light ranging from 240-370 nm (thus including UVB and most of the UVA spectrum). As the photodiode has a very small nano-ampere signal level, the device contains an opamp to amplify this signal.
Specifications

operating voltage: 3.3 V to 5 V
output voltage: 0 V to 1 V (0-10 UV index)
response time: 0.5 second
accuracy: +/- 1 UV index
radiation wavelength: 200-370 nm
operating temperature: -20 °C to +85 °C
current consumption: 5 mA
dimensions: 24 x 15 mm

FINGERPRINT SENSOR ZFM-708

Specifications

power: DC 3.8 V to 7.0 V
back light: green
baud rate: (9600 x N)bps, N=1-12 (default N=6)
image acquiring time: <0.5 s
finger prints storage capacity: 1000
false acceptance rate: 0.001% (at security level 3)
false reject rate: 1.0% (security level 3)
interface: TTL serial
operating current (max.): 95 mA
average searching time: 1 s
working temperature: -20 - +50 °C
outline dimensions: 54 x 20 x 20.5 mm

IR OBSTACLE AVOIDANCE SENSOR MODULE

This module is an inexpensive solution for an obstacle avoidance sensor, perfect for robotic projects and very easy to interface directly with Arduino and compatible boards. The module has two potentiometers, one to control frequency and one to control the intensity.
Specifications

operating voltage: 3.3 V to 5 V
output: digital (on/off)
detection threshold: adjustable by 2 trimmers
distance range: 2 to 10 cm
adjustment R6: frequency adjustment 38 KHz (already optimised)
adjustment R5: IR LED power adjustment (already optimised)
operating temperature: -10°C to +50°C
effective angle: 35°
I/O interface: 4 wire interface (- / + / S / EN )
dimensions: 45 x 16 x 10 mm
weight: 9 g

1 CHANNEL LATCHING RELAY MODULE WITH TOUCH BISTABLE SWITCH 12 V

Specifications

supply voltage: 12 VDC
supply current: 15 - 50 mA
trigger current: 0.5 mA
contact rating: 10 A 250 VAC / 10 A 30 VDC
dimensions: 5 x 2.5 x 2 cm
weight: 25 g

1 CHANNEL SOLID STATE RELAY MODULE

Specifications

power supply: 5 VDC
power current: max. 10 mA
input voltage:
relay OFF: 0 to 2.5 VDC
relay ON: 3.3 to 5 VDC
max. load: 240 VAC 2 A 50/60 Hz
dimensions: 2.5 x 2.5 x 3.6 cm
weight: 6 g
protection: 2A Pico fuse on board

TB6560 3A STEPPER MOTOR DRIVER BOARD

Features

6N137 high-speed OptoCouple to ensure high speed without losing steps
for 42,57,86 Stepper within 3A 2/4 -phase / 4 wire / 6 wire stepper motor
automatic half-decay
excitation mode: synchronizing, half step, 1/8 step, 1/16 step
current level is adjustable to meet your application needs
large heat sink for good heat dissipation
overheating and over-current protection circuit to ensure optimal performance

Specifications

operating voltage: 10 to 35 VDC
rated output current: ± 3 A - peak 3.5 A
dimensions: 50 x 75 x 35 mm
weight: 80 g

FORCE-SENSING RESISTOR (FSR)

This FSR (Force Sensing Resistor) will vary its resistance depending on how much pressure is being applied to the sensing area. A 2.54 mm male pinheader is provided making it easy to use on bread boards.

Specifications
sensor type: single point
shape of sensitive area: round
diameter of sensitive area: 10 mm (+/- 1 mm )
total lenght: 39 mm
sensor thickness: 0.2 mm
material: polyester
range: 100 g to 1 kg
terminal: male pinheader step 2.54 mm
principle: piezoresistive
service life: > 500.000 times
operating temperature: -25°C to 90°C

BME280 TEMPERATURE, HUMIDITY AND PRESSURE SENSOR

The BME280 used on this combo module is an integrated environmental sensor developed specifically for mobile applications where size and low power consumption are key design constraints.

The BME280 supports both SPI and I2C interface to communicate with the microcontroller.

Features
applications:
measurement of volume and air flow
home automation control
control heating, ventilation, air conditioning
internet of things
weather forecast
fitness monitoring / well-being
Specifications
pressure range: 300 to 1100 hPa
temperature range: -40 to 85°C
supply voltage: 1.2 to 3.6 V
I/O voltage: max 3.6 V
current consumption: max. 3.6 uA @ 1 Hz (H,P,T)
sleep mode consumption: 0.1 uA
interface: I2C and SPI
dimensions: 15 x 12 mm

VL53L0X TIME-OF-FLIGHT RANGING AND GESTURE DETECTION SENSOR

The VMA337 is a breakout board for STs VL53L0X laser-ranging sensor and measures the range to a target object up to 2 m away.

Specifications
power supply: 3.3 - 5 VDC
infrared emitter: 940 nm
range: 30 to 2000 mm
ranging accuracy: +/- 3 %
sampling time: <= 30 ms
operating temperature: -20 to 70 °C
interface type : I2C
supply current: 10 mA
XSHUT and GDPIO voltage: max 2.8 V

HM-10 WIRELESS SHIELD FOR ARDUINO UNO

The VMA338 uses a HM-10 module with Texas Instruments CC2541 Bluetooth v4.0 BLE chip, fully compatible with VMA100 UNO. This shield has extended all the digital and analog pins out into 3PIN, making it easy to connect to sensors using 3PIN wire.

Features
extends 14 digital pins to 3pin
extends 6 analog pins to 3pin
on-board reset button
comes with a slide switch to power wireless communication on or off
jumper interface to control serial communication
integrated Texas Instruments CC2541 Bluetooth v4.0 chip on board
Specifications
pin header spacing: 2.54 mm
Bluetooth chip: Texas Instruments CC2541
USB protocol: USB V2.0
working frequency: 2.4 GHz ISM band
modulation method: GFSK (Gaussian Frequency Shift Keying)
transmission power: -23 dbm, -6 dbm, 0 dbm, 6 dbm, can be modified by AT command
sensitivity: =-84 dBm at 0.1% BER
transmission rate: asynchronous 6K bytes
security: authentication and encryption
supporting service: central & peripheral UUID FFE0, FFE1
power consumption: 400-800 uA during standby, 8.5 mA during transmission
power supply shield: 5 VDC
power supply HM10: 3.3 VDC
working temperature: -5 to +65 °C
dimensions: 54 x 48 x 23 mm
weight: 19 g

PULSE / HEART RATE SENSOR MODULE FOR ARDUINO

VMA340 is a plug-and-play heart rate sensor for Arduino and Arduino compatibles. It can be used by anyone who want to incorporate live heart rate data into their projects.

Features
WARNING: NOT FOR MEDICAL USE
VMA340 is not intended to diagnose, prevent or treat any condition, or to be a substitute for professional medical care. Measurements and statistics are intended for informational and educational purposes only. VMA340 is not compliant with the European Council directive 93/42/EEC concerning medical devices and is not approved by the U.S. Food and Drug Administration. If knowing your pulse rate is critical to your health, you need to have your pulse taken by a medical professional.
Specifications
diameter: 16 mm
overall thickness: 3 mm
working voltage: 3 to 5 V
working current: 4 mA at 5 V
cable length: 18 cm
connections: GND, VCC, analog signal out

BH1750 DIGITAL LIGHT INTENSITY SENSOR MODULE

VMA341 (BH1750) is a digital ambient light sensor for I2C bus interface. This module is the most suitable to obtain ambient light data for adjusting LCD and the keypad backlight power of mobile phones.

Features
I2C bus interface
spectral responsibility is approximately human eye response
illuminance to digital converter
wide range and high resolution. ( 1 - 65535 lx )
low current by power down function
module contains 5V to 3.3V converter
50 Hz / 60 Hz light noise reject function
no need for any external parts
adjustable measurement result for influence of optical window (this function allows to detect min. 0.11 lx, max. 100000 lx)
small measurement variation
very small influence of infrared
Specifications
supply voltage: 5 V
voltage: 3.3 VCC
operating temperature : -40°C - +85°C
SDA sink current: 7 mA
power dissipation: 260 mW
dimensions : 20 x 30 mm

A/D D/A CONVERTER MODULE PCF8591

The VMA344 - PCF8591 is a monolithically integrated, low-power, 8-bit CMOS data acquisition device. The PCF8591 has four analog inputs, one analog output and a serial I2C bus interface.
For testing purposes, the VMA344 contains a phototransistor, NTC and a trimmer which are connected to the PCF8591 by 3 jumpers.

Features
single power supply
operating supply voltage 2.5 V to 6.0 V
low standby current
serial input and output via I2C-bus
max sampling rate given by I2C-bus speed
4 analog inputs configurable as single ended or differential inputs
auto-incremented channel selection
analog voltage range from VSS to VDD
on-chip track and hold circuit
8-bit successive approximation A/D conversion
multiplying DAC with one analog output