LM3914 Battery Capacity indicator Module LED Power Level Tester Display Board
$8.73
Color. Red / Color. Blue / Color. Green /
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:red, green, 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
1 x LM3914 Battery Capacity Tester Display Board
Weight | 0.05 kg |
---|
Customers Also Viewed
150W 18V Mono Solar Panel Dual USB 12V/5V DC Monocrystalline Solar Charger for Car RV Boat Battery Charger Waterproof
$164.01Solar PanelAdd to cart150W 18V Mono Solar Panel Dual USB 12V/5V DC Monocrystalline Flexible Solar Charger For Car RV Boat Battery ChargerFeatures1.Equipped with 12V DC5.5×2.1 & 5V USB output interface.2.Dedicated for 12V battery and 5V device charging.3.EVA+PET at front panel, flexible, light-weight but durable.4.Mono-crystalline solar Cell with efficient up to 21%.5.4x eyelet and free 2x carabiners for mounting …
DIY 5×7 Prototype Paper PCB Universal Experiment Matrix Circuit Board
$4.36Module ComponentsAdd to cartDescriptionMaterial:Single Side Copper PCB.Hole Dia:about 1mm.Hole pitch:standard 2.54mm.For point to point DIY soldering.Size:5cm x 7cm – 1.97inch x 2.76inch.Quantity:1PCPackage Included1 x PCB Board
FR4 300x200mm Double Side Copper Clad Laminate PCB Board Fiberboard CCL
$17.48Other Module BoardAdd to cartFR4 300x200mm Double Side Copper Clad Laminate PCB Board Fiberboard CCLSpecificationPanel Size:Approx. 300mm x 200mm or 11.8inch x 7.88inch (inch)Thickness:0.06inch ±0.005 (1.5mm ± 0.15)Weight:Approx. 194g eachLayers:Double SidePanel:FR4Operating temperature:Up to 140 °C or 285°FDescriptionThis Double PCB Copper Clad Laminate Board is made of copper foil by the hot-pressing technology.Super-fine steel-wool, Restore4, Tarn-X, roscherite, Zap or similar …
FR4 300x200mm Double Side Copper Clad Laminate PCB Board Fiberboard CCLRead More
10pcs DC Jack Power 7~12V to DC5V/3.3V Step Down Converter Voltage Regulator Power Supply Module for Breadboad OPEN-SMART for Arduino – products that work with official for Arduino boards
$34.43Power Supply ModuleAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.DescriptionThis is a mini LDO step-down power module based on AMS1117-5.0 and AMS1117-3.3, and it output fixed 5V / 3.3V.It is a small size, lightweight, especially for model airplanes, smart cars, DIY …
60A DC Brush Motor Speed Controller forward Reverse PWM Control Pulse Width Speed Digital Display 10-55V/3KW
$69.50Motor PWM Speed ControllerAdd to cartThe main purpose1. All kinds of general-purpose DC brush motor speed control2. Various types of automotive motor speed control (automobile cooling fan speed control, car fan speed control, car wiper motor speed control, car air conditioning fan speed control)3. Production line conveyor speed control, pipeline exhaust fan speed regulation, treadmill speed regulation, multiple computer fan …
24Value 500Pcs 0.1uF-1000uF Electrolytic Capacitors + 10Value 600 Pcs 0.1uF-10uF Ceramic Capacitor Assortment Box Kit
$32.79Module ComponentsAdd to cartProduct FeaturesThe nice sturdy box helps you keep all caps in order.Assortment Box for easy access.All of the capacitor is marked the value,easy to find what you need.High quality and long life. Package Included1 x 10Value 600pcs Ceramic Capacitor1 x 24Value 500pcs Electrolytic Capacitor
5Pcs KY-015 DHT11 Temperature Humidity Sensor Module
$17.16Sensor & Detector ModuleAdd to cart5Pcs KY-015 DHT11 Temperature Humidity Sensor Module ForDescriptionThe sensor module is including resistive humidity sensing component and NTC temperature testingThe compatible digital temperature humidity sensor module is component and connected with 8-byte MCUGreat anti-interference ability and durableWith fixed bolt hole for easy installation3 DO small plate switch digital output interface connected microcontroller IO portTwo module …
5Pcs KY-015 DHT11 Temperature Humidity Sensor ModuleRead More
100pcs 270uF 16V 8x8mm Low ESR 16V270uF for Motherboard VGA Solid Capacitor
$29.08Electronic Accessories & SuppliesAdd to cartDescriptionLow ESR, high ripple current capabilityESR 5mΩ max (2 to 4VDC)Longer life(20000 hours at 106 Celsius)Rated voltage:2 to 16VDCCategory temperature:-55 to +105 CelsiusTolerance:+/-20%(M)Package included100 x Solid Capacitors
Reviews
There are no reviews yet.