Elektronikus összetevők

 
Servo Tester Gear Test CCPM Consistency Master Checker 3CH 4.8-6V with Indicator Light
 
 
 
Specifications:
(1) Output: 15mA (5.0)
(2) Input: DC 4.2-6.0v
(3) Output Signal: 1.5ms ± 0.5ms
(4) Size: 46 * 32 * 17MM
(5) Weight: 8g
(6) Adjustment: manual, automatic, and the median.
Features: the ability to easily detect and configure the server's virtual spaces, jitter and median.
Can be connected to two servos or ESC; MCU control, good stability and high accuracy. Turn the knob, steering can be detected.
If you connect electronic governor (brush or brushless available), you can get rid of remote control devices for manual speed control, used to test tone
Speed or motor performance is very practical, no longer cumbersome to connect the remote and the receiver. It is equivalent to a "hand
Moving receiver "function, analog transmitters to play through the rudder knob
 
Instructions: Refer to the picture below, then left steering, divided on the lower three groups, which can be accessed three servos; Right single row of pins connected to the supply, close to the edge is negative (to see identification symbol), then the battery negative, be careful not reversed, if the power supply is reversed will burn IC; S identifiers corresponding to the pin, it does not matter. Power on, the blue light will illuminate simultaneously, and then only light left of the first one, in order to manually adjust potentiometers test, press the button, the middle lights, the normalized test; Third lights, automatic testing. ESC test connection and access servos, as you must first take the test motor ESC!
 
Note:This tester can not test the servo more than 55 grams servos
Package Included:
1 X Servo Tester
 
 
 
 
 
 

About one meter in total length
Current: view the voltage and current at the bottom of the router, modem, and switch. If the voltage is 5V, select 5V for general use and if the voltage is 12V, select 12V for general use. If the voltage is 12V, the current cannot be greater than 0.8A; There is no limit on the 5 v
 
1, USB input voltage: 5V;
 
2, DC output voltage: 12V;
 
3, DC plug specification: 5.5*2.1 and 5.5*2.5 general;

 
Mute Mini Micro Submersible Motor Pump Water Pumps DC 3-5V 70-120L/H USB drive

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Product information
Remote control 
  1.Operating voltage: DC12V (27A/12V battery x1)
  2.Operating Current: 10mA @ 12V 
  3.Radiated power: 10mw @ 12V
  4.Modulation mode: ASK (Amplitude Modulation) 
  5.Transmitting frequency: 315MHZ 
  6.Transmission distance :50-100M (Open field, the receiver sensitivity of -100dbm) 
  7.Encoder types: fixed code
 
With decoding receiver board
    1.The operating voltage DC5V, receiver sensitivity is-98db. Leg 7 bits, respectively, VT, D3, D2, D1, D0, the 5 V and GND. VT is a valid signal high output pin Upon receiving a valid signal, the pin output high, may also drive the relay. 
    2.Size: 6.6*22*41mm
There are four buttons on the remote control, and respectively correspond to the four data bits to the receiving board output pin D0, D1, D2, and D3 of. Press the buttons transmit signals, the corresponding data bit is output high.
 
Package include:
1 x IC2262/2272 4 channel 
1 x 4 key Wireless remote controller For

2Cells / Single Lithium ion Battery Charger Module 1-2A PCB 18650 TP5100 4.2V 8.4V

 
DIY Kit 1x4 4 Independent Key Button Keypad Keyboard Module Mcu for Arduino Student Class Design Graduation Project Experiment

5A XL4015 DC-DC Step Down Adjustable Power Supply Module LED Lithium Charger

 
 
 
MAX7219 Digital Tube Display Module
 
MAX7219 is a kind of integrated serial input/output common cathode display driver, it connects microprocessor and 8 digit 7 period of digital LED display, also can be connected to the bar graph display or 64 independent LED. It includes a piece of type B BCD coder, multiple scanning circuit, period of word drive, but also an 8 * 8 static RAM used to store every data. Only an external register used to set each LED segment current.
A convenient four wire serial interface can connection all general microprocessor. Each data can be addressed in the update don\'t need rewriting all the display. MAX7219 also allows the user to each data selection coding or not to code.
The whole equipment includes A 150 A low power consumption closed mode, analog and digital brightness control, A scanning limit register allows users to display 1-8 bits of data, and A let all LED luminous detection model.
Only need three IO mouth can drive eight digital tube! Digital tube display when flicker free! Support cascade!
 
Note:
1. The VCC and GND don\'t pick back, so as not to burn out chip
2.51 SCM P0 port need connected to pull resistance, if your SCM not connected to pull resistance, can will data line received other port
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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Specification:
100% brand new and high quality
The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for a weather stations or humidor control systems. All you need is two lines for I2C communication and youâll have relative humidity readings and very accurate temperature readings as a bonus!
There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I2C communication. This breakout board has built in 4.7k pull up resistors for I2C communications. If youâre hooking up multiple I2C devices on the same bus, you may want to disable these resistors
Power supply: 1.5V-3.6V
Humidity measure range: 0-100% RH
Temperature measure range:-40degree105degree
Max. power consumption: 2.7uW
Communication: I2C
Humidity precision(10% RH to 95% RH): HTU21D±2% RH
Humidity delay: /-1% RH
Measure time: 50ms
Year drift: -0.5% RH/year
Response time: 5s
Size: 1.5x1.5cm(approx)
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

 
Features:
Adapt your USB port with this cable so you can power small devices and electronics that use a 3.5mm barrel jack. Cable uses the 5V DC from the USB port. Can be used with car outlet adapters that have a USB port as well (Car adapter not included).
 
100% Brand New, High Quality
DC Outside Diameter: 3.5mm
DC Indide Diameter: 1.35mm
Length Appro:About 50 cm
Color: Black
 
Package Included:
1 x 3.5*1.35mm DC Charger Cable
 
 

INTRODUCTION:
 
Sing for the moment! The DFPlayer Mini is a small and low cost MP3 module with an simplified output directly to the speaker. The module can be used as a stand alone module with attached battery, speaker and push buttons or used in
 
combination with an (for) (for)UNO or any other with RX/TX capabilities.
 
 
It is  perfectly integrates hard decoding module, which supports common audio formats such as MP3, WAV and WMA. Besides, it also supports TF card with FAT16, FAT32 file system. Through a simple serial port, you can play the designated
 
music without any other tedious underlying operations.
 
APPLICATIONS:
 
Car navigation voice broadcast;
Road transport inspectors, toll stations voice prompts;
Railway station, bus safety inspection voice prompts;
Electricity, communications, financial business hall voice prompts;
Vehicle into and out of the channel verify that the voice prompts;
The public security border control channel voice prompts;
Multi-channel voice alarm or equipment operating guide voice;
The electric tourist car safe driving voice notices;
Electromechanical equipment failure alarm;
Fire alarm voice prompts;
The automatic broadcast equipment, regular broadcast.
 
SPECIFICATION:
 
Supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48
24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB
Fully supports FAT16 , FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH
A variety of control modes, I/O control mode, serial mode, AD button control mode
Advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play
Audio data sorted by folder, supports up to 100 folders, every folder can hold up to 255 songs
30 level adjustable volume, 6 -level EQ adjustable
 
 

 
Note: The charge should disconnect the load OUT terminal on the positive and negative can not be wrong, please according to specifications, otherwise it will damage directly.
 
Module Features and parameters:
Inputs with MICRO USB female, can be directly input to do with the phone charger rechargeable lithium battery,
 
And still retains the input voltage wiring pads, can be very convenient DIY
 
Input voltage: 5V
 
Charging cut-off voltage: 4.2V ± 1%
Maximum charge current: 1000mA
 
Battery over-discharge protection voltage: 2.5V
 
Battery overcurrent protection current: 3A
 
Board size: 2.6 * 1.7CM
 
                                                                                                                                                
 
Instructions:
 
Note: The first time you access the battery, it may no voltage between the output OUT and OUT-, then access 5V voltage charge your energy can activate the protection circuit, and the battery from the B B-, then draw a line on the short open also need recharged to activate the protection circuit. Note that the charger must be able to output 1A or more to do when using a mobile phone charger input, or may not charge
 
MICRO USB female and next - pads for the power input, access 5V. B positive then the lithium battery, B- then negative lithium batteries. OUT and OUT- connected to the load, such as positive and negative electrodes connected mobile booster plate or other load.
 
Connect the battery to the B B-, inserted into the USB female mobile phone charger, the red light is being charged, the green light to full.

 
433MHZ Wireless Transmitter Receiver Board Module SYN115 SYN480R ASK/OOK Chip PCB
 
 
 
 
 
 
 
 

 
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity (note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery is less than 3.3V,and you can charge the battery
 
 
 

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2A Adjustable Booster Board DC-DC Step-up Module
 
Description:
The whole network smallest adjustable boost module can be easily installed in a variety of small equipment.
The module supports MicroUSB input, a USB charger or mobile power supply can easily get to it 9V, 12V, 15V, 18V, 24V, easy to use.
Wide input and output voltage, high conversion efficiency.
Maximum output current: 2A (recommended for use within 1A)
Input voltage: 2 v ~ 24 v
Maximum output voltage:> 28 v (recommended for use within 26V)
Efficiency:> 93%
Size: 30mm * 17mm * 14mm (L * W * H)
This module is a step-up module, the output voltage is greater than the input voltage.
Peak current output current does not exceed 2A.
Package Included:
1 X 2A Booster Board
 
 
 

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IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module For Motor Test

 
Micro USB Cable wire 1m for
 
 
 

13A XE-3 JB-01E Switch Electric Kettle, Thermostat Switch Steam Medium Kitchen Appliance Parts
 
 

 
The USB to RS232 module based TTL provides the best and convenient way to connect your RS232 TTL Devices or demo board to your PC via the USB port.
Supports the following Windows OSes:
Windows 98SE
Windows ME
Windows 2000 SP4
Windows XP SP2 and above (32 & 64 bit)
Windows Server 2003 (32 & 64 bit)
Windows Server 2008 / 2008 R2 (32 & 64 bit)
Windows Vista (32 & 64 bit)
Windows 7 (32 & 64 bit)
NOTE: For Windows 7, please use RC build 7100 or above.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Note: 3pcs/set heatsink only, Raspberry Pi Board and enclosure are Not Included
Features:
100% Brand New and High Quality
The Heatsink have a layer of adhesive on the back of them. Simply peel the adhesive off and stick onto your board
This heatsink set is specially designed for Raspberry Pi, it\'s function is to cool down the board and make your Raspberry operate safely
Reduce the risk of hardware failure because of overheating
 
Install Instructions:
 
Make sure the chip modules are free from dirt and grease
Peel the protective liner on the base of the heatsink
Affix the heatsinks on the chip modules and apply firm pressure
One set of aluminum heatsink (3pcs)
1x 14mm(L) x 14mm(W) x 5mm(H) Heatsink for Soc
1x 9mm(L) x 9mm(W) x 4mm(H) Heatsink for Voltage Regulator
1x 9mm(L) x 9mm(W) x 4mm(H) Heatsink for LAN9512
 
 

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T8 Anti Backlash Spring Loaded Nut Elimination Gap Nut for 8mm Acme Threaded Rod Lead Screws DIY CNC 3D Printer Parts
 
Suitable for 3D printer T8 lead screw
Lead screw diameter: 8mm
Pitch:2mm
Lead:8mm
  
Anti-Backlash Nut
 
 
 

 
Package Included:
1 x Dupont jumper wire(100pcs dupont head)   
 

2S
 
Alcance aplicable: adecuado para baterías de litio con voltaje nominal de 3,7 V y voltaje completo de 4,2 V (incluyendo 18650, 26650, baterías de polímero de litio, sin limitación en las dimensiones)
 
Tamaño del producto: 45*15*3,4mm (estándar), 48*20*3,4mm (equilibrio)
 
 
Voltaje de carga: 8,4 V-9,0 V
 
Corriente de descarga continua (límite superior): 20A (si el ambiente de refrigeración no es bueno, reduce el uso de la corriente de carga).
 
Corriente de carga continua (límite superior): 10a
 
Edición Estándar: adecuado para arrancar taladros con corrientes de hasta 25A por debajo de 50W o cargas resistivas por debajo de 168W.
 
3S
Placa equilibradora de batería de litio 3S 12,6 V
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Voltaje aplicable: 12,6 V
 
Tamaño del producto: 15*30 (40,50) * 2,4mm
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería.
 
4S
Descripción:
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Tamaño del producto: 20*30 (40,50) * 2,4mm
 
Peso del producto: 3g
 
Voltaje aplicable: 16,8 V
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería

2S
 
Alcance aplicable: adecuado para baterías de litio con voltaje nominal de 3,7 V y voltaje completo de 4,2 V (incluyendo 18650, 26650, baterías de polímero de litio, sin limitación en las dimensiones)
 
Tamaño del producto: 45*15*3,4mm (estándar), 48*20*3,4mm (equilibrio)
 
 
Voltaje de carga: 8,4 V-9,0 V
 
Corriente de descarga continua (límite superior): 20A (si el ambiente de refrigeración no es bueno, reduce el uso de la corriente de carga).
 
Corriente de carga continua (límite superior): 10a
 
Edición Estándar: adecuado para arrancar taladros con corrientes de hasta 25A por debajo de 50W o cargas resistivas por debajo de 168W.
 
3S
Placa equilibradora de batería de litio 3S 12,6 V
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Voltaje aplicable: 12,6 V
 
Tamaño del producto: 15*30 (40,50) * 2,4mm
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería.
 
4S
Descripción:
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Tamaño del producto: 20*30 (40,50) * 2,4mm
 
Peso del producto: 3g
 
Voltaje aplicable: 16,8 V
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería

2S
 
Alcance aplicable: adecuado para baterías de litio con voltaje nominal de 3,7 V y voltaje completo de 4,2 V (incluyendo 18650, 26650, baterías de polímero de litio, sin limitación en las dimensiones)
 
Tamaño del producto: 45*15*3,4mm (estándar), 48*20*3,4mm (equilibrio)
 
 
Voltaje de carga: 8,4 V-9,0 V
 
Corriente de descarga continua (límite superior): 20A (si el ambiente de refrigeración no es bueno, reduce el uso de la corriente de carga).
 
Corriente de carga continua (límite superior): 10a
 
Edición Estándar: adecuado para arrancar taladros con corrientes de hasta 25A por debajo de 50W o cargas resistivas por debajo de 168W.
 
3S
Placa equilibradora de batería de litio 3S 12,6 V
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Voltaje aplicable: 12,6 V
 
Tamaño del producto: 15*30 (40,50) * 2,4mm
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería.
 
4S
Descripción:
 
Alcance: voltaje Nominal de 3,7 V, voltaje completo de 4,2 V batería de litio (incluyendo 18650,26650, batería de polímero de litio)
 
Tamaño del producto: 20*30 (40,50) * 2,4mm
 
Peso del producto: 3g
 
Voltaje aplicable: 16,8 V
 
Corriente del equilibrador: 100mA, adecuado para el paquete de baterías de 2000-4000mAh
 
 
Nota 1: Este producto no puede reemplazar el uso de la placa de protección de la batería de litio (sin protección de sobrecarga y protección de sobredescarga); Funciona es: la primera llena de una sola descarga de batería, esperando otras baterías cargadas.
 
Nota 2: estrictamente de acuerdo con el cableado del mapa, entonces la línea de tablero incorrecta puede provocar una quema; La placa de equilibrio funciona cuando el calor es grande, aísle el paquete de la batería.
 
Nota 3: Este producto se utiliza en paralelo con la placa de protección de la batería de litio común, puede lograr la función de carga equilibrada.
 
Nota 4: si la diferencia de la capacidad de resistencia interna de la batería es demasiado grande, habrá un largo tiempo para equilibrarla o no puede completar el equilibrio de la situación, se recomienda volver a emparejar la batería

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8 channels bidirectional voltage translation between different logic level, translate between Ax and Bx automatically
Voltage level: 1.8V-6V
Dimension: 21mm x 15mm
How to Use
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has TTL 3.3V input, Bx will get TTL 5V output
When Bx has TTL 5V input, Ax will get TTL 3.3V output
NO direction control required
Packing List:
TXS0108E Logic Converter *1PCS
 
 

 
UN2F 3 Pin 40mm Computer CPU Cooler Cooling Fan PC 4cm 40x40x10mm DC 12V
 
 
Brand New CPU Heat sink Cooler
This fan is a great replacement for Computer CPU Cooling Fan that have gotten noisy or burned out
The Computer CPU PC Cooling Fan keep your computer cool with optimal temperature Improve air flow,
Cooling your CPU when they are used, make your PC more durable
Unique fan design for easy thermal heat dissipation, low noise
Power saving design, low power consumption, easy to use
Extend computer reliable and life
Connector: 3 pin connector
Voltage: DC 12V
CPU Fan is made of plastic
Easy to install and easy to use
Size: 40*40*10mm
Color: black
 
 
 
 
 
 
 

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Shipping list:
1.Short female pins x4pcs
2.Dual Base  x1pcs

Welcome to our Store
If you have any question please contact us
 
Description
Lot of 10 Pieces.
100% New, Never Used.
 
8List =1UNIT =1LOT please check .thank you . No 8PCS ATmega328P-PU Only 1pcs!!!!!!!!!!
 
1 x ATmega328P-PU & UNO Bootloader , 1 xFREE DIP Socket , 2 x 22pF capacitors and 1 x high precision 16MHz crystal oscillator, 1x LM7805 5V Voltage regulator & 0,1uF & 0,33uF electrolytic capacitors.
 

 
Parts NO.: LM2596 DC-DC
Package :
Quantity : 1pcs
Electronics Description :
Conversion efficiency: Up to 92% (output voltage higher, the higher the efficiency)
Switching Frequency: 150KHz
Rectifier: Non-Synchronous Rectification
Module Properties: Non-isolated step-down module (buck)
Short circuit protection: current limiting, since the recovery
Operating temperature: Industrial grade (-40 to 85 ) (output power 10W or less)
Full load temperature rise: 40
Load regulation: 0.5%
Voltage regulation: 2.5%
Dynamic response speed: 5% 200uS
Specification:
Input voltage:3-40V
Output voltage:1.5-35V(Adjustable)
Output current:Rated current is 2A,maximum 3A(Additional heatsink is required)
Dimension:45*20*14mm(L*W*H)
 
 

Product Description
1. AM2320 digital temperature and humidity sensor is a calibrated digital signal output containing hexyl temperature and humidity sensor complex. Temperature and humidity using a dedicated capture technology to ensure that products with high reliability and excellent long-term stability. Sensor includes a capacitive humidity sensing element and an integrated high-precision temperature measurement devices, and connected with a high-performance microprocessors. The product has excellent quality, fast response, anti-interference ability, high cost and other advantages.
2. AM2320 communication using a single bus, standard I2C two means of communication. Standard single-bus interface, allowing system integrators to become simpler and quicker. Ultra-small size, low power consumption, signal transmission distance up to 20 meters or more, making it the best choice for all kinds of applications and even the most demanding applications. I2C communication using standard communication sequence, the user can directly linked to the I2C communication bus without additional wiring, simple to use. Two means of communication are used as humidity, temperature and check CRC and other digital information directly via temperature compensated output, users do not need to calculate the secondary digital output, and no need for temperature compensation of the humidity, you can get an accurate temperature and humidity information.
 
Product Features
1. Ultra-small size
2. Super cost-effective
3. Ultra-low voltage operation
4. Excellent long-term stability
5. Standard I2C and single-bus output
6. Power supply: DC 3.1~5.5V
 
 
Applications
HVAC, dehumidifiers, testing and inspection equipment, consumer goods, automotive, automation, data loggers, weather stations, home appliances, humidity control, medical, and other relevant humidity measurement and control.
 
 
 
Pin Definitions
1. VDD:  Power supply (3.1V~5.5V)
2. SDA:  Serial data, bi-directional port
3. GND:  Ground
4. SCL:  Serial clock, input port
 

 
 
DS1307 I2C real time clock chip (RTC)
24C32 32K I2C EEPROM memory
Using LIR2032 rechargeable lithium battery and charging circuit with
DS1307 with battery backup can not solve the problem of literacy .
Fully charged, can provide DS1307 timing 1 year.
Compact design , 27mm * 28mm * 8.4mm
Leads to the DS1307 clock pin provides the clock signal for the microcontroller
 
 
 
 
 

 
Smallest SIM800L GPRS GSM Module MicroSIM Card Core BOard Quad-band TTL Serial Port
Description:
Chip: SIM800L
Voltage: 3.7-4.2V
Support networks: China Mobile, China Unicom and global quad-band network
Module size: 2.5cmx2.3cm
TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
Power module automatically boot, homing network
Onboard signal lights all the way . It flashes slowly when there is a signal, it flashes quickly when there is  no signal
Package Included:
1 X SIM800L GPRS GSM Module
1*antenna
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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