Electric Modules

Product Details:

SIM 800C Module is a complete Quad-band GSM/GPRS solution in a SMT type, which can be embedded in the customer applications.These modules are sub-system of the Internet-of-everything hardware. SIM800C supports Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption. With tiny size of 17.6*15.7*2.3mm, it can smoothly fit into slim and compact demands of customer design.

Additional Information:

• Delivery Time: READY STOCK

Product Details:

The A9G is a complete quad-band GSM / GPRS module that supports GPRS and GPS / AGPS technologies and is integrated into a compact design SMD package, saving customers time and money in developing GNSS applications. The A9G can be used in a wide range of IoT applications for home automation, industrial wireless control, wearable electronics, wireless location-aware devices, wireless location system signals and other IoT applications, making it ideal for IoT applications.The A9G development board is a versatile development board based on EMC's A9G GPRS / GSM + GPS / BDS module that can be used to validate the basic communication functions and peripheral functions of the A9G module. Features: - Complete quad-band GSM / GPRS module, 800/900/1800 / 1900MHz- Sleep current is less than 2mA- Support GPS, BDS (Beidou) positioning- Support digital audio and analog audio, support for HR, FR, EFR, AMR voice coding- Support voice calls and SMS messages, embedded network service protocol stack- Support the standard GSM07.07,07.05 AT commands and safe letter scalable instruction set- Support USSD and PBCCH, support UART interface to download Package Included: 
 1 x A9G Development Board 1 x GPRS GPS Module1 x Antenna

Product Details:

1. Complete quad-band GSM / GPRS module, 850/900/1800 / 1900MHz
2. SMD package for easy MP & testing
3. GPIO level is 2.8V
4. Low power mode, average current 2mA or less
5. Support GPS, BD

Product Details:

simcom module full range in stock 
By leveraging upon our huge industry experience, we provide the best quality array of SIM800L GSM GPRS Module.

Details:

• The SIM800L module supports quad-band GSM/GPRS network, available for GPRS and SMS message data remote transmission. The SIM800L communicates with microcontroller via UART port, supports command including 3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands. It also has built-in level translation, so it can work with microcontroller of higher voltage than 2.8V default. Besides, the board also supports A-GPS technique which is called mobile positioning and gets position by mobile network. This features make it can also be a tracker module.

Features:

• AT Commands
• Supports RTC
• Supports GNSS
• Low Power Consumption
• Micro SIM Card
• Supports TTL Logic

Applications:

• Home Automation
• Iot
• Home Security
• Data Logger
• Customized Applications, etc.

Additional Information:

• Production Capacity: 1000

Product Details:

Product Specification Product Description

DS3231 RTC  is Precise Real-Time Clock Module with 32Kbit EEPROM and a built-in 10-bit temperature sensor having a resolution of 0.25C.

 

The DS3231 RTC module Precise Real-Time Clock Module is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted.

 

The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The ds3231 Arduino is available in commercial and industrial temperature ranges and is offered in a 16-pin, 300-mil SO package.

 
Application

• Power bridging to provide uninterruptible RTC
• function during exchange of main batteries
• Consumer appliances that have real-time
• clocks; provides switchover power from main
• supply to backup battery
• Ultra-Low Power Timer using only 20nA
• Wireless sensors and RFID tags and other
• powered, low duty cycle applications
• Business and industrial systems such as:
• network routers, point-of-sale terminals, singleboard computers, test equipment, multi-function
• printers, industrial controllers, and utility meters

Product Details:

Product Specification Product DescriptionDS1307 is a real-time chip of DALLAS company,which adopt I2C protocal to communicate with SCM, and there was this kind interface on Arduino, therefore is very convenient to link with each other. DS1307 have a programmable waveforms output, it can be used to drive LED lights, or trigger a certain event as a break off, but be careful when you use it to take some kind of high power module. We design the real clock module to pin out the I2C interface of Ds1307 and programmable waveforms output interface SQW are connected, but usually we will only use the I2C interface to realize basic set the clock/read function. Note, this module must be installed on the battery can work normally. The battery is button batteries (type CR2032 will be better), the positive upward:


This tiny module embraces DS1307 time module, DS18B20 temperature module and AT24C32 storage module. DS1307 and AT24C32 are connected to IIC bus. And DS18B20 can be visited via DS pin.


Feature :

• Almost same size as CR2032 Button Battery?
• IC: DS1307,DS18B20,AT24C32 ; DS1307 and AT24C32 can be used separately
• Have the automatic adjustment function of second minute day month and year
• Take alarm output function and cut off power protection function

Additional Information:

• Production Capacity: 5000

Product Details:

WiFi modules like the ESP8266 makes that possible, but you need to be somewhat close to a WiFi signal, and the code will need to be reconfigured if you want to connect to a different WiFi router, since the password would probably be different.

Bluetooth modules will kinda achieve the same thing, but using Bluetooth communication instead.

But sometimes you might just want to be able to send or receive without having to use WiFi or Bluetooth, well then the NRF24L01 would be a good choice.

Unlike the others it uses radio wave to communicate between modules, the same type used in cordless phones in your house.

Additional Information:

• Delivery Time: against order

Product Details:

We import all electronic components from distributor 

Product Details:

• High-Performance 10/100 Ethernet Physical Layer Transceiver (PHY)
• Supports single 3.3V supply
• Supports the reduced pin count RMII interface
• Supports HP Auto-MDIX
• Onboard chip package: 24-pin QFN (4x4 mm) Lead-Free RoHS Compliant package
• Flexible Power Management Architecture
• Integrated 1.2V regulator
• I/O voltage range: +1.6V to +3.6V

Applications

• Embedded web server

Product Details:

Product DescriptionWe are among the reputed organizations, deeply engaged in offering an optimum quality range of UBLOX NEO-6M GPS Module.

Features:

• 5Hz position update rate
• EEPROM to save configuration settings
• Rechargeable battery for Backup
• The cold start time of 38 s and Hot start time of 1 s
• Configurable from 4800 Baud to 115200 Baud rates. (default 9600)
• SuperSense  Indoor GPS: -162 dBm tracking sensitivity
• Support SBAS (WAAS, EGNOS, MSAS, GAGAN)
• Separated 18X18mm GPS antenna
• We mainly import all  types  of  electronic components  from china ,Taiwan ,  Hong Kong , Singapore and Thailand based on customer requirements  , we are located in hyderabad and generally support full Bom  any components requirement feel free to contact  us  we can match any price  any BOM feel free to mport full range , whether it's small or big quantity  based on customer requirements if U need Chinese or original all we can support in full range  with COC if  any defence related product .

Product Details:

Product DescriptionWith through domain understanding, we are betrothed to provide excellent quality PAM8403 Amplifier Board.

Other Details:

• Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply
• Battery power can also be used
• A class, B class amplifier such efficiency is only about 30%
• D class amplifier is highly respected today
• D class amplifier efficiency is extremely high, not because of temperature affect the sound quality
• Module has a short-circuit current protection and over-temperature protection

Product Details:

Product Specification Product DescriptionMT3608 2A Max DC-DC Step Up Power Module Booster Power Module For Arduino
The module features (booster module) :the Mechanical properties:The method of useConnect the the IN+ and IN- of the module with 2~24vAdjust the potentiometer to adjust the output voltage. Please be noted that the output voltage should be higher than the input voltage.Note:1).The input voltage should not exceed the maximum input voltage2).Peak current output current is not more than 2A for input & output.
Note: The output voltage must be higher than the input voltage.
IN-IN + input Positive Input Negative!Positive output OUT + OUT-output negative
Test comparison sample reference:Input 3V Output 12V 0.4A 4.8WInput 5V Output 12V 0.8A 9.6WInput 7.4V Output 12V 1.5A 18WInput 12V Output 15V 2A 30WInput 12V Output 16V 2A 32WInput 12V Output 18V 1.6A 28.8WInput 12V Output 19V 1.5A 28.5WInput 12V Output 24V 1 A 24W
Vin * Iin * Efficiency = Vout * Iout

Vin: Input VoltageIin: input currentVout: Output VoltageIout: output current

Product Details:

Features:

1. 3S 11.1V 12.6V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery).
2. Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery).
3. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use).
4. Continuous charge current (upper limit): 20A.
5. Suitable for the drills with starting current below 80A, power 135W below.

Product Details:

Product Specification Product DescriptionThe XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation.

This product is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency,  low ripple, and excellent line and load regulation.

The DC/DC buck module has applications where the input voltage is higher than the output voltage, such as battery, power transformer, DIY adjustable regulated power supply, LCD Monitor and LCD TV portable instrument power supply telecom/networking equipment, 24V vehicle notebook power supply, industrial equipment buck.

This module has an adjustable output Voltage. Also works as a dedicated charger for Lithium Batteries (Li-Ion, LiPo) as it is capable of controlling voltage as well as current. Ex. 12V buck to 3.3V, 12V buck to 5V, 24V buck to 5V,24V buck to 12V, 36V buck to 24V etc.

Applications :

• Use as a step-down module.
• Adjust the “voltage potentiometer” so that the output voltage reaches the value you want.
• Make sure you need to charge the battery float voltage and charging current; (if lithium parameters 3.7V/2200mAh, then the float voltage is 4.2V, the maximum charging current 1C, ie 2200mA)
• Under no-load conditions, adjust the “Voltage potentiometer” so that the output voltage reaches the float voltage; (if to 3.7V rechargeable lithium battery, the output voltage can be adjusted to 4.2V)
• Use a multimeter to measure the output short-circuit current, while regulating the “current potentiometer” so that the output current reaches a predetermined Charging current value.
• Factory default is 0.1 times the charging current; (during charging, current is gradually reduced, if the charge current setting is 1A, then when the charge current is less than 0.1A, blue lights turned off, the green light is on, which means that the battery is fully charged)
• Connected to the battery charge.

Product Details:

1. Module: Non-isolated step-down module (BUCK)
2. Input voltage: DC 4.75V-23V
3. Output voltage: DC 1.0V-17V (Adjustable, Output < Input)
4. Rectification: Synchronous rectification
5. Built-in 160°C thermal shutdown
6. Output ripple: 30mV (no-load)

Additional Information:

• Packaging Details: dip

Product Details:

Product Description

The Arduino UNO R3 SMD Board With Connector is a development board based on the ATmega328.It has 14 digital input/output pins , 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.The Arduino UNO can be powered via the USB connection or with an external power supply. The power source is selected automatically. External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery.The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

Features:

• ATmega328P-AU microcontroller
• USB Programming Facilitated by the CH340G
• Header Pins Included.
• Input voltage – 7-12V
• 0-5V outputs with 3.3V compatible inputs
• 14 Digital I/O Pins (6 PWM outputs)
• 6 Analog Inputs
• ISP Header
• 32k Flash Memory
• 16MHz Clock Speed
• All SMD Construction
• R3 Shield Compatible

Product Details:

Product Specification Product Description

We provide our customers with best quality 4S 10A BMS for LifePO4 as well as Li-ion Batteries.

 

The BMS provides the battery pack with Overcurrent Protection, overdischarge protection, overcharge protection. It increases the battery life to a great extent.

Product Details:

This is Pro Mini 5V/16MHz is a 5V Arduino running the 16MHz boot-loader. Pro Mini ATMEGA328P come without connectors.

It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.

The Pro Mini is a micro-controller board base on the ATmega328.  It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers.

A six pin header can be connected to an FTDI cable to provide USB power and communication to the board. The Pro Mini Arduino is intended for semi-permanent installation in objects or exhibitions. The pin layout is compatible with the Mini Arduino.

Specifications and Features :-

• Circuit Operating Voltage: 5V
• Clock frequency: 16MHz.
• Digital I/O Pins: 14
• 8 analog input port: A0 ~ A7.
• A pair of TTL level serial port transceiver : RX / TX.
• 6 PWM port: D3, D5, D6, D9, D10, D11.
• Use For Atmel Atmega328P-AU microcontroller.
• Support serial download.
• Support 9V battery.
• Package Includes :
• 1 x Pro mini 5v/16mHZ compatible with arduino

Additional Information:

• Production Capacity: 10000

Product Details:

Product Details

Unlike the Active Buzzer, which generates a fixed tone when the power is connected, the passive needs a generated tone, as a loudspeaker does, to make it operate. This buzzer is almost identical in appearance to the Active Buzzer.

Either PWM or simply switching a digital pin on then off,  the frequency being determined by the length of the delay between switching on and off.

Additional Information:

• Delivery Time: AGAINST ORDER

Product Details:

Product Specification Product DescriptionEsp8266 D1 Mini NodeMCU Wifi Development Board is an Arduino Compatible mini wifi board with 4MB flash based on ESP8266EX. The board is with 11 digital input/output pins, all pins have interrupt/PWM/I2C/one-wire supported(except D0) 1 analog input(3.3V max input) and a Micro USB connection.

The development board features WiFi-SoC ESP8266 and is made for fast Internet-of-Things (IoT) prototyping. It is flashed with the latest firmware version and can be set up and programmed right away with the onboard micro USB connection. With only a few lines of code, the NodeMCU Dev Kit connects to your local network and ready for control by other network members like computers and smartphones.

The D1 mini is an ESP8266 development board that is compact, versatile and very easy to use with the Arduino IDE. It supports natively by the Expressive SDK.

Features of Esp8266 D1 Mini Node MCU Wifi  Development Board:

• Use BRT (Bias Resistor Transistor)
• Easier into flash mode.
• 30% increase in radiating area
• Good stability.
• 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except for D0)
• 1 analog input(3.2V max input)
• Micro USB connection
• Compatible with Arduino
• Compatible with nodemcu
• Support OTA wireless uploading
• 11 x I/O pins,1 x ADC pin

Product Details:

Available Models
Arduino uno r3 dip
Uno r3 protoshield
Pro mini 5v module
Micro sd card module
Nrf24l01 module
Nrf24l01 + PA antenna module
Hc05 bluetooth module
Usb - cp2102 module red
Adxl 335 module
Gy 271 Hmc5883
l module
Hcsr04 ultrasonic sensor
Hcsr501 pir module
Ds18b20 probe
Heart pulse sensor
Ldr moduleIr 2
led module
I2c module for 1602
Max7219 1display module 
Xl6009 module
Xl4015 module
Lm2596 module
W1209 temperature module
Isd1820 with speaker
Ccpm servo tester
Uno r3 case
Pi 3 case3.5" lcd for raspberry
pi2wd smart chasis4wd smart chasis
400 point breadboard
170 point breadboard
M-m jumper wire
M-f jumper wire 
F-f jumper wire
Rc522 with keychain
Mpu6050…[9:43 AM, 1/11/2020] Paresh Sir Ceepee: Mlcc AVX 104All other value MLCC GOLBE 104/103/102/101/100 474 .........334...........224..........225.............RM-065.
White blue preset 1053386, P3296w, 3590S
HELIPOT Metal dial ordernd 

Product Details:

Product Specification Product DescriptionWe at s g electro components  our customers with finest quality of ADS1115 4 Channel ADC Module. The ADC1115 4 Channel 16 Bit I2C ADC Module is one of the most used ADC Module in the market.

This modules has a precision of 16Bits, that is it would allow you to measure precise ADC Values. It has an I2C Interface, and can be used to measure four single channel inputs, or two differential inputs. It can be used with any microcontroller, arduino or with raspberry Pi.

Product Details:

Product DescriptionBeing a leading enterprise of this industry, we are offering a huge range of I2C LCD Display Module.

Description:

• The backlight and contrast is adjusted by potentiometer
• Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
• This is another great IIC/I2C/TWI/SPI Serial Interface
• With this I2C interface module, you will be able to realize data display via only 2 wires.
• If you already has I2C devices in your project, this LCD module actually cost no more resources at all.

Product Details:

Product Specification

Product Details:

Description:-
Arduino NANO Version 3 is the open source smallest Embedded Development board launched by Arduino based on Atmega328 SMD Package Microcontroller. It is a Surface mount Breadboard Friendly board integrated with Mini USB Port. DC Power Jack is not available on this Board, so power can be given through Mini USB Cable. It automatically sense and switch to the higher potential source of power, there is no need for the power select jumper.
 
Specifications:-
 
Microcontroller                        Atmel ATmega328 SMD Package
Operating Voltage (logic level)  5 V
Input Voltage (recommended)  7-12 V
Input Voltage (limits)               6-20 V
Digital I/O Pins                        14 (of which 6 provide PWM output)
Analog Input Pins                    8
DC Current per I/O Pin            40 mA
Flash Memory                         32 KB (of which 2KB used by bootloader)
SRAM                                     2 KB
EEPROM                                 1 KB
Clock Speed                           16 MHz
Dimensions                            0.70 x 1.70
 
 

Additional Information:

• Production Capacity: 5000

Product Details:

Specification:

• 5V Relay Module 4-Channel
• This is a 5V 4-Channel Relay interface board.
• Be able to control various appliances, and other equipments with large current.
• It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .
• 5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current.
• Equiped with high-current relay, AC250V 10A ; DC30V 10A.
• Size:7*5.3mm
• Indication LEDs for Relay output status.

Application:

• Supports all MCU control
• The industrial field
• PLC control
• Smart home control

Package Included:

• 1X4 Channel Relay Module DC 5V With Optocoupler For Arduino PIC ARM AVR DSP

Request
Callback

Product Details:

Product Specification Product DescriptionWith our expertise and trustworthiness, we are engaged in offering an optimum quality range of 2 Channel Relay Module.

Details:
This is a 5V 2-Channel Relay interface board, be able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).

Features:

• 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current
• Equipped with high-current relay, AC250V 10A ; DC30V 10A
• Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
• Indication LED's for Relay output status
• It activates on low level.

Product Details:

Being a well-renowned entity, we are engaged in providing a distinguished range of NRF24L01 PA LNA SMA Antenna Wireless Transceiver Module.

Applications:

Surveillance

Telemetry

Intelligent sports equipment

Industrial sensors

Product Details:

Product Specification

Product Details:

This module can be used to connect the microcontroller to the RS485 Network. 

Features

• Compatible with 3.3V and 5V Power Supply
• Convert TTL or UART to RS485, and connect microcontroller with RS485 Network
• Hardware Automatic Flow Control
• Industrial Grade
• Support Multi Machine Communication, allowing access to upto 128 devices on the bus
• Only one in the entire network
• Modules can be hot swapped

Product Details:

Product Specification Product Description Functions:

• As a general step-down module with overcurrent protection capability:
• as a variety of voltage lithium batteries, nickel-cadmium nickel-metal hydride batteriesCharger used for solar panels. wind turbines and other occasions:
• as a high power LED constant current drive module used:

1. With constant voltage and constant current mode. the indicator light indicates which mode:
2. As a lithium battery charger to use. you can set the float voltage and charge current Small, indicating whether the indicator is being charged or filled:
3. With current limiting protection function. even if the output short circuit will not burn the module.

As an overcurrent protection step-down module

• adjust the “voltage potentiometer” so that the output voltage reaches the value you want.

• use a multimeter to measure the outputshort-circuit current with 10A stalls, while regulating the “current potentiometer” sot hat the output current reaches a predetermined overcurrent protection value. (For example, the meter displays the current value of 2A, then you can use the module to a maximum current of 2A)

• Connect to the load.

Use as a battery charger

• Make sure you need to charge the battery with  float voltage and charging current: (if lithium parameters 3.7V/2200mAh. then the float voltage is 4.2V the maximum charging current 1C. ie 2200mA)
• Under no-load conditions. adjust the “Voltage potentiometer- so that the output voltage reaches the float voltage: (if to 3.7V rechargeable lithium battery the output voltage can be adjusted to 4.2V)
• Use a multimeter to measure the output short-circuit current with 10A stalls. while regulating the “current potentiometer so that the output current reaches a predetermined Charging current value.
• Charge turn lamp current factory default is 0.1 times the charging current: (Battery during charging current is gradually reduced. if the charge current setting is 1A. then when the charge current is less than 0.1A. blue  lights turned off green light is on. which means that the battery is fully charged)

Product Details:

Product DescriptionThe 5V USB Step Down module is one of the highest quality Step Down Module with Fixed Output at 5V. It has a high quality USB Female Socket for the output. The efficiency of the module is 97% (6.5V to 5V 0.7A, or 94% when converting 12V to 5V 1A). The 5V USB Step Down Module also has output overvoltage protection. It has 1.5A Fuse for overload protection as well. And, has a 300W TVS Diode to protect the USB Device attached, and also has Input Reverse Polarity Protection. It also has Output LED Indicator.

Product Details:

Product Specification Product DescriptionRT8272 is one of the most compact sized Dc to DC Buck Converter in the market. It supports input voltage upto 23V, and is output current is rated at 2A. It uses the inductor of high qualities, and thus provides better output than any other buck converter in the market of this size.

Product Details:

Additional Information:

• Delivery Time: depend on availability

Product Details:

CAN IMPORT ALL ELECTRONIC COMPONENTS AND MODULES OF LORA SERIES

Additional Information:

• Packaging Details: SMD

Product Details:

Description

• RS485 to USB Converter
• Allows multiple devices to be connected on the RS485 Bus
• LEDs for RX and TX to indicate data transfer
• USB 2.0 standard, also backward compatible

Additional Information:

• Production Capacity: 1000

Product Details:

Product Specification Product DescriptionIn 3S 10A 12V 18650 Lithium Battery Charger Board Protection Module, 3S stands for 3 18650 batteries or polymer lithium battery series combination. With 10.8V rated voltage for polymer battery, 11.1V 18650 or 3.7V lithium battery rated voltage and  12.6V lithium battery can be charged. And discharge 10A (referring to the maximum discharge current limit) Lithium battery protection board it also Comes with over-charge, over-discharge, over-current, short circuit protection.

Formula expansion :

• 1C battery expansion, 2000 capacity is equal to 2AH * 1 = 2A upper limit of current.
• 3C battery expansion, 2000 capacity equal to 2AH * 3 = 6A upper operating current.

If the battery gets heat, does not apply that battery, such a situation cannot be long-term use, the battery will soon be damaged.

Notes :
1: Strictly according to the drawing wiring 0 V (B), 3.7 V (B1), 7.4 V (B2), 11.1 V (B +), not intentionally short circuit!
2: Once you have charged the first line, it will have output.
3: When connecting three battery groups, please make sure that the voltage of each battery group, if not the same, fill each battery separately and then use it in series. discharge test, the fastest battery voltage drop, which group is low battery. (2 good battery + a use effect = 3 low battery low battery use effect).

Warning:

• The protection board can not be used for lithium iron phosphate batteries, lamp hernia, hand drill battery, electric battery fish, electric bicycle battery, car battery for children, 775 (4A) motor, 1 W fish eye LED light, please pay attention customer purchase connection! Described in terms of power for the following products: Massager rechargeable battery, LED ready light power supply, 12 V electronic products, solar street lamp battery, power backup monitor, and other products.

Product Details:

Product SpecificationVoltage (V)220Frequency50 HzBrandProvotechProduct DescriptionWe are the leading suppliers for 1 channel relay board. This is a small and easy to use 1 channel relay board that operates on 5V. This relay board lets you control one 240V power appliance directly from 5V microcontrollers or low voltage circuits. Perfect for switching 240V appliances - lights, fans, etc, and even high power motors at lower voltages

Features:

Works on 5V

240V Appliances can be controlled from a microcontroller with a 5V signal

High power loads which cannot be directly controled from microcontrollers can be switched on/off with this relay module. Loads like 12V DC Motors, Solenoids, LEDs, etc can be controlled with this module.

Relay board uses high quality relays with a maximum load of 7A/240 V AC or 7A/24V DC

Board comes with connectors for easy connections to both the microcontroller and the load

Product Details:

Product Specification

Product Details:

The MAX7219 is an integrated serial input / output common-cathode display driver, it is connected to a microprocessor with 8-digit 7-segment digital LED display can also be connected to the bar graph display or 64 separate LED. On B BCD encoder including an on-chip, multi-channel scanning loop word drive, but also an 8 x 8 static RAM is used to store each data. Only one external register is used to set the current of each LED segment.

A convenient four-wire serial interface can connect all general-purpose microprocessor. Each data can be addressed in the update does not need to rewrite all the display. MAX7219 also allows the user to select on each data coding or non-coding.

The entire device contains a 150uA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display the 1-8 bits of data, as well as a let all LED light detection mode.

Only need three IO ports can drive a dot-matrix! Dot-matrix display, flicker-free! Supports cascading!

 

Features:-

A single module can drive an 8 * 8 common cathode lattice

Module operating voltage: 5V

Module size: 5 cm in length X width 3.2 cm x 1.5 cm

Including four screws hole, aperture 3mm

Module with input and output interface, supports multiple modules cascade

Additional Information:

• Delivery Time: AGAINST ORDER