5pcs Green LM3914 Battery Capacity indicator Module LED Power Level Tester Display Board
$23.36
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Features
– This is a DIY kits,need buyer to assemble it.
– Power display is to take some voltage, perform simulations show the percentage of segments, such as 3.7V lithium battery, take the lower voltage 3V, the upper limit of 4.2V, 4.2-3 = 1.2V, the voltage difference between the lower limit of 1.2V, is the battery Analog power up
– LM3914 can accurately detect an analog voltage, and 10 LED display, display dot mode LED is lit 10 one, or in a stripe pattern individually lit LED
– Display Description:Displays the battery voltage between the lower limit of 10 files showed that representatives of each of the lights 10% charge displays, on behalf of 10 lights display charge 0% -100% range; you can also change the single light display, is displayed only a light, more power, single-light power 4mA, all bright 42mA.
– Suitable for lithium batteries, lead-acid batteries and other power batteries need to be displayed
– Power adjustable display range for the battery discharge curve of a scientific setting, direct support:single lithium 1S (4.2V) ~ 4S (16.8V), lead acid 6V ~ 12V, NiMH 3.6V ~ 18V, nickel-cadmium batteries 3.6V ~ 18V
Parameter
Power:bar display full brightness 42ma, single light shows 4ma
Measuring range:the battery inside the common 2.4-20v
Color:green
Display:Multi-light bar display or a single light dot display
pcb board size:45 x 14 mm
Display Mode A / P:full brightness linear / single lamp lattice mode switch, the default is a linear model, the board set aside a switch pad, even with soldering pads can be turned into full light linear mode, no welding is the point like single light display
A variety of high and low voltage battery display range adjustment
1. Lithium battery
After the completion of a single lithium battery discharge voltage is 3V, when fully charged 4.2V;
1S correspond to 3V (first light) to 4.2V (tenth lights);
2S corresponds to 6V (first light) to 8.4V (tenth lights);
3S correspond to 9V (first light) to 12.6V (tenth lights);
4S correspond to 12V (first light) to 16.8V (tenth lights);
Other series voltage and so on.
2. Lead Acid Batteries
6V or 12V lead-acid battery is generally
6V corresponds to 4.8V (first red light) to 6.75V (tenth lights);
12V corresponds to 9.6V (first red light) to 13.5V (tenth lights);
The module according to the above standard battery discharge range design, can accurately reflect the battery, so that users can readily observe the status of the battery.
Adjustment methods
Equipment needed:an adjustable power supply, precision accuracy of the decisions of the panel display. Watches word screwdriver.
Case in single 3.7V lithium, 3V is less low-end power, 4.2V for the full power of high-end.
1. the adjustable power supply voltage to the desired voltage display high 4.2v, connect this board, this time there are two results:one is not bright, one is all bright or light a few. This time slow adjustment plate 503 (50k) potentiometer until the LED strip just lit up the whole. Several light does not shine or counterclockwise to adjust, when full light clockwise.
2. the adjustable power supply voltage to the low end of the desired 3V. Adjustment board 502 (5K) potentiometer to just light a LED, does not light clockwise adjustment, several or all bright light counterclockwise.
3. patiently repeating the first step two. Usually 2 times to adjust to the desired display range.
Note
To adjust their voltage, according to the method of adjusting the order, to emphasize high-end, then adjust the low end.Red then positive, then negative black, must not be reversed, this module is the maximum limit voltage DC 20V, please use anti-static welding or soldering station pull electric heat welding.
Package Included
5 x LM3914 Battery Capacity Tester Display Board
Weight | 0.04 kg |
---|
Customers Also Viewed
Multiple Car Toys Magnetic Puzzle Box Book Educational Book Kids Learning Gift
$52.64MathematicsAdd to cartPackage included10 x Card76 x MagnetsFeatures1.Developing kids’ intelligence.2.Teaching kids to know more words.3.Easy for storage.SpecificationsColor:MulticolorMaterial:Paperboard, MagnetismSize:30x4x21.5cm
Basic Starter Kit UNO R3 Mini Breadboard LED Jumper Wire Button with Box for Geekcreit for Arduino – products that work with official Arduino boards
$18.62Module KitsAdd to cartDescriptionsPerfect for Shield Prototyping and TestingPlastic housing, metal contact clipsAccept wire with diameter 20-29AWGVolatge/current:300V/3-5A400 tie-point2 Power Lanes, Tie-point 1001 Double-strip, Tie-point 300Solderless Breadboard Size:82x55x8.5mmPackage included1 x Uno R3 Development Board1x 400 hole Breadboard10 x 220Ω resistor 5% carbon film10 x 1k resistor 5% carbon film10 x 10k resistor 5% carbon film10 x 100k resistor 5% …
3pcs ESP32-S WiFi + Bluetooth ESP32S Serial to WiFi Dual Antenna Module
$29.27Smart ModuleAdd to cartDescriptionThe main chip uses a low-power dual-core 32-bit CPU with a frequency of up to 240MHz and computing power of up to 600DMIPS.Default 32Mbit SPI Flash, 520KB SRAMSupport SoftAP and Station modeUltra-small 802.11b/g/n Wi-Fi + BT/BLE SoC moduleSupport UART/SPI/I2C/I2S/PWM/ADC/DAC, etc.Support for firmware upgrade (FOTA)Antenna supports onboard antenna or IPEX block outputPackage includes3 x Wifi module
Geekcreit 433MHz DC 12V 10A Relay 1CH Channel Wireless RF Remote Control Switch Transmitter with Receiver
$15.30Smart ModuleAdd to cartIf you need more Transmitter, please buy Product ID:1215079>>>Manual:Click here to openFeaturesEasy to install and easy to carryWith a slidable cover on the remote controlWith a hook on the remote controlUse Learning coding, stable and reliableThe wireless signal can pass through walls, floors and doorsYou can turn on or turn off the receiver with transmitter …
CO2 Refill Adapter Connector Kit W21.8-14 Thread Set for Filling SodaStream
$56.69Electrical Pump & ValveAdd to cartFeature*CO2 Refill Adapter is used to fill CO2 into your Sodastream tank.*Adjustable valve pin ensures compatibility with any cylinder valve variation.*Easy to install and use.*Made of high quality metal, high hardness and durable.Specification*Material:Metal*Color:Silver (As Pictures Show)*Inner Thread:TR21-4*Outer Thread:W21.8-14Package Contents1*CO2 Refill AdapterNotes:The real color of the item may be slightly different from the pictures shown on …
CO2 Refill Adapter Connector Kit W21.8-14 Thread Set for Filling SodaStreamRead More
30pcs 2.5-5.5V TTP223 Capacitive Touch Switch Button Self Lock Module
$15.15Other Module BoardAdd to cartFeatures 1. Size:15*11mm 2. Power:2.5-5.5V 3.Trigger setting mode:(1->Short;0->No Short) AB=00:No-lock High TTL level output; AB=01:Self-lock High TTL level output; AB=10:No-lock Low TTL level output; AB=11:Self-lock Low TTL level output; Package included 30 x 2.5-5.5V TTP223 Capacitive Touch Switch Button Self-Lock Module For
NE555 Pulse Module LM358 Duty and Frequency Adjustable Square Wave Signal Generator Upgrade Version
$6.55Test & Measuring ModuleAdd to cartFeature1. Used as a square wave signal generator to generate square wave signals for experimental development.2. Used to generate a square wave signal that drives the stepper motor driver.3. Generate adjustable pulses for use by the MCU.4. Generate adjustable pulses to control the associated circuitry.Description1. Size:3.5CM * 4.6CM1. The main chip:LM358;2. Input voltage:5V-12VDC.3. Input current:≥100MA;4. …
3pcs LM3915 Level indicator Kit DC9V-12V DIY Electronic Production Module Kit
$13.73DIY Electronic KitsAdd to cartFeatureModel:AUL-10Supply voltage:DC9V-12VAudio input:0~1.5VrmsPCB size:66 x 28mm (L x W)Light row size:62.5 x 5 x 10.7mm (L x W x H)Two indication modes:bar indication and fire spot indication (Realized by MOD short-circuit point)Lamp row offers two kinds of vertical and horizontal installationTin-treated solder padsNote:Before power on, please confirm the polarity of the power supply is correct …
3pcs LM3915 Level indicator Kit DC9V-12V DIY Electronic Production Module KitRead More
Reviews
There are no reviews yet.