5pcs Blue 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:blue
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
30pcs EQKIT Electronic Funny Kits Voice Control LED Melody Light DIY Kits Production Suite Small Electronic Learning Electronic Kits
$56.32DIY Electronic KitsAdd to cartDescriptionVoltage:3-4 .5 VPCB material:FR-4 fiberglass boardDimensions:34 * 34MMPackage included30 x Voice Control LED Melody Light DIY Kits
10pcs Transparent Protective ABS Case Support Cooling Fan for Raspberry Pi 4 Model B
$58.27Raspberry Pi & Orange PiAdd to cartOverviewThis is a new design ABS case to protect your Raspberry Pi 4 Model B computer, and it is only comepatible with your Raspberry Pi 4 Model B, not support other versions. Also support install a dc 5v cooling fan. The GPIO pin interface is available to us if you do not install the cooling …
10pcs Transparent Protective ABS Case Support Cooling Fan for Raspberry Pi 4 Model BRead More
10pcs Roller Lever Arm Micro Switch AC 250V HV-156-1C25
$13.11Electronic Accessories & SuppliesAdd to cart10pcs Roller Lever Arm Micro Switch AC 250V HV-156-1C25DescriptionSize:27.8 x 10.3 x 15.9mmRoller Diameter:4.75mmLever Length:28mmRating:15A AC250VWithstand Voltage:AC1, 0000V 1 MinuteInsulation Resistance:100mΩ DC500VContact ResistanceSoldering Temperature:250°C Max 3 sec.Ambient Temperature used:-25°C to +80°CAmbient Humidity UsedOperating Force:160Part number is HV-156-1C25Package included10 x Micro Switch
Solar TPMS LED Wireless Tire Pressure Monitoring System with 4 internal Sensor
$168.06SwitchesAdd to cartFeatures-This wireless tire pressure monitoring system comes with four built-in sensors and a digital monitor to monitor the tire pressure/temperature-By employing the advanced wireless sensors which highly integrated pressure and temperature sensor, we provide the amazing and reliable TPMS for you-Oil will be decreased when tires work under lower pressure, this item can reduce fuel …
Solar TPMS LED Wireless Tire Pressure Monitoring System with 4 internal SensorRead More
Deek-Robot W-1213 intelligent Digital Display Fish Tank Climbing Pet Greenhouse Planting Hatching and Breeding Temperature Controller
$26.23Test & Measuring ModuleAdd to cartProduct parameterProduct name:Intelligent temperature controllerProduct model:W-1213Power supply voltage:AC110-220VWorking frequency:50HZTemperature range:-40C~+120CTemperature measurement accuracy:÷0.5CSensor cable length:100CMSize:79.5*43*35mmShell material:surface shell ABS, bottom shell flame retardant ABSBattery:CR1220 3V button battery(not included)Display panel descriptionHeat (corresponding icon display):heating mode, in heating mode, heating the relay works.Cool (corresponding icon display):Cooling mode, in cooling mode, cooling the relay works.Timer:Timer switch, in timer mode, the …
Waveshare IMX219-160 Camera 160 Degree Field of View 8 Million Pixels for Jetson Nano
$54.66Smart ModuleAdd to cartFeaturesSupports NVIDIA Jetson Nano Developer Kit, Compute Module 3/3+8 MegapixelsSensor:IMX219Resolution:3280 ≠ 2464Lens specificationsCMOS size:1/4inchAperture (F):2.35Focal Length:3.15mmAngle of View (diagonal):160 degreeDistortion4 screw holesUsed for attachmentProvides 3.3V power outputDimension:25mm ≠ 24mmApplicationsCombined with the Jetson Nano AI computer, this camera suits for AI projects such asFace recognitionRoad mark detectionLicense plate recognitionPackage includes:(the Jetson Nano does not includes)1 x …
Waveshare IMX219-160 Camera 160 Degree Field of View 8 Million Pixels for Jetson NanoRead More
10Pairs MC4 Connector Male And Female MC4 Solar Panel Connector 30A 1000V for PV Cable 2.5/4/6mm Solar Panel Connect
$26.23Electronic Accessories & SuppliesAdd to cartSpecificationArticle number:MC4Rated voltage 1000 VRated impulse voltage:1000 VTest voltage:6 kV (50Hz)Suitable for cables:10, 12, 14 AWG (2.5mm2 / 4mm2 / 6mm 2;)Rated current:24 A-14 AWG (2.5mm 2;), 30A-12 and 10 AWG (4mm 2; and 6mm 2;)Protection class:IP67Contact material:copper, silver platedInsulation material:PC / PAOperating temperature:-40 ° C + 90 ° CThe security class:IIFlame Class:UL94-V0Contact resistance:≤5mΩInsertion / …
Reviews
There are no reviews yet.