Electronic Component

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This Is   3.7V To 5V 9V Step Up Adjustable Module 2A 18650 Lithium Battery Charging Booster Module.It has Input voltage: 4.5-8VOutput voltage: continuous adjustable 4.3-27V (Counter clockwise to boost voltage)Charging voltage: 4.2VCharging current: up to 1ADischarge current: the maximum 2AOutput reference maximum current: 5V 1.4A, 9V 0.8A, 12V 0.6AQuiescent current: about 0.5 mAOvershoot protection: YesOver discharge protection: None (also can be said yes, because 2V cut-off boost but does not block the output, output has 2V)Deadline boost:: 2V, depending on whether added the additional protection boardSize: 3.3 x 2.3 x 0.9cmConnecting example, VIN + connect 5V solar panel, BAT + terminal can output 4.2V to charging 3.7V 18650 battery,OUT + side can output an adjustable voltageCan be used for multimeter, modified lithium battery charging Package includes:1 x Lithium Battery Charging Discharge Integrated Module.
FEATURES:-100% Brand New and High Quality-Can be used for multimeter, converted to lithium battery charging-For example: VIN+Port input 5V solar panels, BAT+port can output 4.2V to charger 3.7V 18650 battery
Note: The OUT+Port can output an adjustable voltage.

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"DS3231 Mini RTC is a Mini Real-Time Clock module designs for Raspberry Pi, but it also may be used to Arduino. DS3231 RTC IC Self-modify 3.3V and 5V.Provide battery backup for continuous timing, Low-energy intake. Complete clock features encompass seconds, minutes, hours, day, date, month and 12 months timing, and provide legitimate to 2100.
It has Two calendar alarms, 1Hz, and 32.768kHz output. Reset output and enter buttons Debounced High-pace (400KHz) I2C serial bus. Many RTC modules are intended to operate at 5V. Unfortunately, the Raspberry Pi operates at 3.3V, this is wherein this reachable module comes into play, it operates at 3.3V perfect for adding an RTC on your Raspberry Pi.
Features:Supported Raspberry Pi and Arduino Within -40°C to +85 ° C temperature rangeTiming accuracy is maintained at ± 5ppm (± 0.432 sec/day).operating temperature range:-40°C to +85°CProvide battery backup for continuous timing.Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid to 2100.Two calendar alarm.1Hz and 32.768kHz output.Size: 14x14x12 mm
Package Includes:1 x DS3231 Real Time Clock Module 3.3V 5V Precise, with battery
Specifications:Supply voltage(V) +2.3 to +5.5
operating temperature range -40°C to +85°C
Number of calendar alarm 2
Output Frequency 1Hz and 32.768kHz
PCB Dimension( mm) 14x14x12
Weight(g) 4
Shipment Weight 0.007 kg
Shipment Dimensions 8 × 6 × 2 cm"

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• This power supply module is based on the AMS1117 3.3V regulator.
• It is capable of regulating a wide range of input voltage (4.0 to 12V) down to a fixed 3.3V output at up to 1A (Vin = 4.5V). Standard 0.1″ header pins provide a means of connecting to its input and output terminals.
• These header pins have also been conveniently placed so that the module can be inserted face down into standard

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1 PCS x Blue Red Dual Led Display Mini Dc Digital Voltmeter Ammeter Dc 100V 10A Panel Amp Volt Current

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This CN6009 XL6009 DC – DC Step-up converter module is a non-isolated step-up (boost) voltage converter featuring adjustable output voltage and high efficiency.The module uses the second generation of high-frequency switching technology XL6009E1 core chip performance than the first generation technology LM2577. XL6009 boost module at a lower cost, superior performance.It equips 4A high-efficiency MOSFET switches, so as to provide a conversion efficiency of up to 94%.High switching frequency 400KHz, you can use a small -capacity filter capacitors that can achieve very good results, the ripple is smaller and smaller
Pins:-IN+ input positive-IN- input negative-OUT+ output positive-OUT- output negative
Features:-The performance is much higher than LM2577.-Non-isolated Boost converter.-It has a non-synchronous rectifier.-Small and Handy voltage regulator module.

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DC 24 V 3NO-DESCRIPTIONNO-DESCRIPTIONmA Push Pull Solenoid electromagnet, 1NO-DESCRIPTIONmm 6N Push Pull Type, open body type, linear motion, plunger spring go back, open coil shape, DC electron magnet. Used widely in home appliances, vending machines

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The all-new 18650 Dual SMD/SMT High-Quality DUAL Battery Holder is made to handle the higher lithium battery supply voltage with a long service life. With the compact size SMD pins, you can mount the holder on your project PCB and power your project without any loose wiring.This Holder can hold two 18650 cylinders shaped cell to provide separate supply from both cells as slot are not interconnected, It means that the holder can be taken in use as a SINGLE battery Holder also. Additionally, you can easily combine two battery power by doing a series or parallel combination connection simply by soldering the contact points of the Holder from outside as per your project needsIt has High-quality ABS external / PC material, insert material is bronze pin environmental protection material. The ABS plastic can handle bearable heat which normal plastic can’t and Stainless steel rustproof shrapnel screens with gold plating will hold the batteries tightly, the installation is very convenient to replace the battery, it will not damage the battery and other parts, convenient and fast, safe and reliable.

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This is a Black Plastic Storage Box Case Holder for Battery 3 x 18650 Cell Box, without Cover.The case box can keep your batteries organized and protected. The holder case is designed with leads for easy to solder and connect. This battery holder case is perfect for the devices need an 11.1V external battery.This Battery Holder is compatible with our 18650 Li-ION Batteries which you need to buy separately.

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The HC-42 6pin Bluetooth 5.0BLE Serial Port Module is a new generation of digital transmission module based on the Bluetooth BLE V5.0 Bluetooth protocol. The working frequency band is 2.4GHz ISM, and the modulation method is GFSK. The module’s maximum transmit power is 4dBm and the receiving sensitivity is -96dBm.The HC-42 6pin Bluetooth 5.0BLE Serial Port Module uses BLE (Bluetooth Low Energy) protocol. The main difference between Bluetooth and BLE is power consumption. Bluetooth consumes more power than BLE but can handle a lot of data. BLE is more appropriate for quickly transferring small amounts of data between nearby devices. BLE is less power-hungry, so the devices running this protocol can operate for years with a small battery; perfect for IoT!
Note: The product dimensions may have ±2% error. Color also may vary due to light effect.
Specifications:-Part Number                  :HC-42D-Version                      :BLE 5.0-Module Size                  :37mm *15.6 mm-Frequency Band               :2.4G-Air Rate                     :1Mbps/2Mbps-Working Voltage              :1.8~3.6V-Antenna                      :PCB internal antenna-Shutdown Current             :0.3μA-Communication Interface      :UART-Sensitivity                  :-96dBm@1Mbps-Level                        :1.8~3.6V，Same to Working Voltage-Working Humidity             :10％~90％-Transmit Power               :-40~4dBm-Storage Temperature          :-40℃~+85℃-Reference Distance           :40m/2Mbps（BLE 5.0）-Working Temperature          :-25℃+75℃

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This 4 x 1.5V AAA Battery Holder can hold 4  1.5V AAA battery which can make  6 V rechargeable battery pack from NiMH / NiCd cells or 6 V battery pack from alkaline cells or it can also be used for one-time use and throw batteries for small DIY projects. The battery holder puts the batteries in series so that you have 4x the voltage of an AAA battery. (approx. 6V)It comes with a soldered open end wire.

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This is a 12V 8 x AA Battery Clip Slot Holder Stack Box Case.The case box can keep your batteries organized and protected. The holder case is designed with leads for easy to solder and connect. This battery holder case is perfect for the devices need a 12V external battery.

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"Interface: TYPE-C can immediately use the cellular telephone charger as input to price the lithium battery,and there are nonetheless input voltage wiring solder joints, which can be very handy for DIY.Input voltage: 5Vcharging reduce-off voltage: four.2V ± 1%charging contemporary: 1000mAbattery over-discharge safety voltage: 2.5Vbattery over-present day safety contemporary: 3A"

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This is a Black Plastic Storage Box Case Holder for Battery 4 X AA Cell Box, with DC Power Plug. The 5-inch cable is terminated with a standard 5.5×2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino (among a number of other products) allowing you to easily make your project battery powered.The case box can keep your batteries organized and protected. The holder case is designed with leads for easy to solder and connect. This battery holder case is perfect for the devices need a 6V external battery.
Note: -the average voltage regulator has about 1V of dropout (but can vary greatly). This pack, with normal alkaline batteries, will output ~5.5V causing a normal 5V board to run at around 4 to 4.5V. This depends on a lot of what board and processor you are using with the battery pack.

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The Uno R3 CH34NO-DESCRIPTIONG ATmega328p Development Board is the low-cost version of the popular Uno R3 Arduino. It is assembled with the CH34NO-DESCRIPTION USB to Serial converter chip, instead of using an Atmega16U2 chip

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• If you want to make a robot which has plenty of shifting parts or in case you want to govern too many LEDs with PWM outputs,  then the constrained PWM outputs of your microcontroller might be a huge hassle for you.
• To overcome this trouble, the simplest factor you should do is to get a 16-Channel 12-Bit PWM/Servo Driver.

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The MT3608 2A Max DC-DC Step Up Power Module Booster Power Module is a low-cost module that can step-up a 2 to 24V input voltage up to a 5 to 28V output at up to 2A.DC-DC boost converters step up the input voltage to a higher voltage while also stepping down the available current since the module can’t output more power than its inputs.This boost converter is adjustable and capable of outputting a voltage in the range of 5.0 to 28V at a continuous current of up to 1.5A depending on input/output voltage settings with 1A available with most settings.Since it is a boost converter, the input voltage must be lower than the output voltage.The device is able to use low ESR bulk ceramic capacitors rather than electrolytic caps which avoids long-term aging concerns and contributes to the compact packaging.The MT3608 converter IC has over-current and thermal limiting features built-in to safely shut the device down if driven too hard.
Voltage Adjustment:The module has a single-turn potentiometer for adjustment of the output voltage.Turning the pot CW decreases the output voltage while turning it  CCW increases the output voltage.The upper limit of the adjustment range will depend on the input voltage and the load.  With a 9V input for instance, at 1A, the upper voltage limit will be approximately 20V.
Module Connections:These are compact boards with 4 solder pads for making connections.VIN+ =Input VoltageVIN- =GroundVOUT+=Output VoltageVOUT-=Ground.  Connected to VIN- on the module.
Pad dimensions:MT3608 2A Max DC-DC Step Up Power Module
Note:The input voltage should not exceed the maximum input voltage.Peak current output current is not more than 2A for input & output.Please be noted that the output voltage should be higher than the input voltage.
Features:-It’s efficient by up to 93%.-It can source a good amount of current.-It is an inexpensive converter module.-It’s simple to adjust to get your desired increase in voltage.

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