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
5pcs 3S NiMH NiCd Rechargeable Battery Charger Charging Module Board input DC 5V
$26.35Power Supply ModuleAdd to cartDescriptions3-Cell(3S) VersionInput voltage:DC 4.5V-5.5V(Recommend DC 5V)Charging voltage about:4.05V-5.1VCharging current about:230mA-240mAUSB power protectionShort circuit protection and zero volt battery activationBattery protectionOperating ambient temperature:-40° to +85°Storage temperature:-65° to +125°Size:30x 15 x 4mmNoteThe output voltage cannot be measured with a multimeter without a battery. But can be observed with an oscilloscope.Applicationskids toys carDigital CamerasSolar chargingBluetooth ApplicationsAudio equipmentDigital CameraElectronic …
5pcs 3S NiMH NiCd Rechargeable Battery Charger Charging Module Board input DC 5VRead More
5Pcs/Pack 5V 1000mA 165*165mm Monocrystalline Solar Panel Cells with Positive&Negative Cables
$85.54Smart Robot & Solar PanelAdd to cartFeaturesProvide you with high conversion rate and incredibly efficient output.Excellent performance even under the weak sunlight.Portable and solid casing.Application:to charge, for home lighting and different kinds of low-power appliances, for science projects, for solar powered water pump, small solar power system, etc.SpecificationsType:Monocrystalline Size:165*165mmCurrent:1000mA Net Weight:about 600g one packPackage Content:5Pcs x Poly Solar PanelVoltage:5VMPN:Does Not ApplyPackage …
Waveshare 1.54 inch ink Screen Module 152×152 Electronic Paper SPI interface Yellow Black and White 3-color Display
$45.91Display ScreenAdd to cartDocumentsSchematic:Click here to openSample tutorial:Click here to openDatasheet:Click here to openGithub:Click here to openFeaturesNo backlight is needed, and the display content of the last screen can be kept for a long time after power offVery low power consumption, basically only consumes power when refreshingSPI control interface, can be connected to Raspberry/Nucleo and other main control …
Geekcreit DIY Creative Electronic Watch Kit 51 Single-chip LED Digital Tube Clock Training Production Kit
$15.30DIY Electronic KitsAdd to cartDescriptionName:LED Electronic Watch KitPower supply:CR2025 3V button battery (available for testing, there are inevitably extra factors causing insufficient power.)Display:LED red digital tube displaySize:52*52*18mmInstallation:the board need to solder yourself and then assembly the caseFunction:You can press the digital tube button when need to wacth time; it will enter the power saving mode automatically after 5 seconds. …
QFN32 QFP32 Converter SMD To DIP Adapter PCB Universal Board
$3.56Expansion Board & ShieldAdd to cartQFN32 QFP32 Converter SMD To DIP Adapter PCB Universal BoardSpecificationDimension:20.25 x 40.64mm / 0.79inch x 1.60inchThickness:1.5mmPanel:FR4DescriptionThe PCB board has two sides.A side for pin pitch size 0.80mm, B side for pin pitch size 0.80mm.It can be used to convert QFN32/QFP32 (600mil width, 2.54mm pin pitch).You can solder filter capacitors or resistors to increase stability and …
QFN32 QFP32 Converter SMD To DIP Adapter PCB Universal BoardRead More
YJ0007 180W Car Stereo Audio Amplifier Power Boost Board Single 12V input Conversion Double 32V Output
$52.41Boost & Buck ModuleAdd to cartDescriptionAll parts and components of this product are original products, unpretentious and pure in quality; using high-quality original parts not only guarantees safety and quality, but also has a long service life, and more importantly, it is a strong guarantee that the actual performance can reach the design goals.Features1. All components are genuine.2. The main …
Reviews
There are no reviews yet.