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
1pcs AS15-G AS15G TQFP-48 Chip IC
$4.36Electronic Accessories & SuppliesAdd 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.DescriptionType:AS15-GQuantity:1Package included1 x AS15-G AS15G QFP48 Chip IC
18W 1PCS Aquarium Filter Aquarium internal Filter Oxygen Submersible Water Pumps for Fish Tank Pond Aquarium Filters
$48.59MathematicsAdd to cartSpecificationsModel:1280FMaterial:ABSFlow 1300 L/H ,Cable length:1.1MMaximum lift:1.2mOxygen tube length:0.34MFit For fish tank:≤80cmColor:As Picture ShowPower Consumption:18WWeight:639gFeatures-Removable filter box, easy to replace the filter material.-Adopt high quality and firm ABS shell, durable, freshwater and sea water are suitable.-Small size, easy to hide, at the same time filtering, oxygen, pumping and other functions.-With biological filtration cotton in the filter …
4 Channels 4-20mA Current Signal Generator Module Board with 12864 Digital LCD Display
$55.43Other Module BoardAdd to cartDescriptionThis module is a multichannel current signal generator that generates 4 channels 4~20mA current signal. The module is simple to use and input data by keystroke operation, and the output signal is updated immediately.FeaturesUse 12864 LCD displayVoltage:15-24VActive output current 0~20mA. Display resolution 0.01mA and control accuracy 0.1mAPolarity protection of input voltageCan analog transmitter outputCompatible for …
4 Channels 4-20mA Current Signal Generator Module Board with 12864 Digital LCD DisplayRead More
20pcs LM393 DC 5V Optoelectronic Sensor PIR Sensor Module with LED instruction Slot Single Signal
$23.96Sensor & Detector ModuleAdd to cartSpecificationsThe distance between PCB two circular hole (point to point center) is 1.5cm, and the aperture is 0.3cm.Slot type optocoupler slot width:10mmMain chip:LM393, slot type optocoupler H2010Working voltage:DC 5VSize:32mm x11mm x 20mmCharacteristic1. There is a signal output indication.2. Single signal output.3. When the object is blocked, the output is high level (LED lights out), and …
DIY Digital Display LED Logic Pen Electronic Kit High and Low Level Test Circuit Soldering Practice Board Kit
$4.36DIY Electronic KitsAdd to cartDescriptionPower supply:DC 4.5-5VBoard size:3.5 * 5.5cmLow-level judgment voltage:0.0-0.4VHigh-level judgment voltage:3.3-5VPackage included1 x DIY Digital Display LED Logic Pen Electronic Kit
Reviews
There are no reviews yet.