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
DIY Dream Crystal Electronic Column Light Cube LED Music Voice Spectrum Kit
$32.79DIY Electronic KitsAdd to cartDIY Dream Crystal Electronic Column Light Cube LED Music Voice Spectrum KitSchemitic here!!!Name:Dream audio light columnOperating voltage:5V USBSize:20mm x 30mm x 160mmHow to solder will show in the video is here!Package included1 x DIY Dream Crystal Electronic Column Kit
10Pcs Wooden Blank Christmas Star Wood Chip Sheet Ornaments Hanging Tags Laser Engraving DIY Crafts
$9.27Engraving & Cutting MaterialsAdd to cartDescriptionThis lightweight, exquisite and chic decorative wooden sign with a matched hemp rope will make your Christmas decor more special and unique. The lovely carved design with refined craft will ensure its practicability and popularity among wall and door decoration for Christmas. Great hanging decor for house, shop, store and other places.SpecificationMaterial:Natural Wood Size (Width*Height*Thickness):6cm …
intelligent Microwave Sensor Switch AC220V-240V Human Body induction Sensor Corridor Photoelectric Sensor
$21.67Smart ModuleAdd to cartIntroduction:>>>More informations:Click here to openThe microwave sensor is an active sensor. The HF sensor emits high-frequency electromagnetic waves (5.8 GHz) and receives their echoes (power consumption less than 2 MW). This sensor detects changes in the echoes and even small movements within its detection ran ge. . The microprocessor then triggers the inchlights upinch c0mmand. …
DC 0-100V 0-10A 1000W 0.28 LED Digital Voltmeter Ammeter Wattmeter Red Green Blue Voltage Current Tester Power Meter Monitor
$21.17Electronic 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.DescriptionDisplay:0.28′ LED numberWorking voltage:DC 8~24VMeasuring voltage:DC 0.000~100.0VMeasuring current:DC 0.000~9.999AMeasuring power:DC 0.000W~1000WRefresh rate:◎300ms/timeMeasurement accuracy:1% (÷1 bit)Working currentWorking temperature:-10 to 65 COperating humidity:10 to 80% (non-condensing)Product size:79.3mmx42.25x 24.38mmMounting hole:72.0mm x 39.0mmProduct weight:38gPackage Included1 x …
Reviews
There are no reviews yet.