3pcs Green LM3914 Battery Capacity indicator Module LED Power Level Tester Display Board
$15.82
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
3 x LM3914 Battery Capacity Tester Display Board
Weight | 0.024 kg |
---|
Customers Also Viewed
LED Cool Light Egg Candler Tester Ultra Bright Pocket Poultry Egg Lamp incubator
$56.69Switch AccessoriesAdd to cartFeatures– Made of high quality ABS material, insulating, stable and durable.– LED lamp head, high power, strong light source, can clearly detect the hatching of eggs.– Using high-quality materials, safe and durable, with buttons that are easy to open and close.– Suitable for hatching eggs, but also for children and students to learn the process …
LED Cool Light Egg Candler Tester Ultra Bright Pocket Poultry Egg Lamp incubatorRead More
5pcs 2 Channel PWM Generator Module Pulse Frequency Duty Cycle Adjustable
$34.82Other Module BoardAdd to cartProduct Introduction1. Operating Voltage:5-30V,support micro USB 5.0V power supply2. Frequency Range:1Hz~150KHz3. Frequency Precision:2%4. Signal Load Capacity:output current is within 8–30mA5. Output Range:default 5V V-pp (can be changed by external power)6. Ambient Temperature:-30 Celsius ~70 Celsius Application Fields1. As square wave generator to generate square wave for experiment development2. Used to drive steeping motor driver’s square …
5pcs 2 Channel PWM Generator Module Pulse Frequency Duty Cycle AdjustableRead More
3.7V Lithium Battery 4 Paragraph Power indicator Module
$4.36Test & Measuring ModuleAdd to cartDescription1, onboard high precision voltage detection chip and power supply voltage chip2, onboard four power indicator LED lights, three kinds of color display, red, yellow, yellow, green,representing 20%, 50%, 80%, 100% of the battery3, set aside a battery testing interface and two positioning hole4, PCB size:22.2 (mm) x17.2 (mm)Package included1 x 3.7V Lithium Battery 4 …
3.7V Lithium Battery 4 Paragraph Power indicator ModuleRead More
YAHBOOM High-quality T-shape Expansion Board + 40Pin GPIO Flat Rainbow Ribbon Cable for Raspberry 4B/3B+/ZERO/W
$10.21Raspberry Pi & Orange PiAdd to cartDescriptionThis high-quality T-shape expansion board allows you to connect the Raspberry Pi GPIO port for breadboard experiments. We will provide a 40Pin soft cable for you to connect the Raspberry Pi board to the breadboard.FeaturesSpecifically designed for Raspberry Pi 4B/3B, Raspberry Pi 2B, Raspberry Pi 1B+, Raspberry pi 1A+, Raspberry Pi zero W, Raspberry Pi …
10pcs LM3915 10-segment Audio Level indicator Kit Electronic Soldering Training experiment DIY Parts
$33.89DIY Electronic KitsAdd to cartFeatrurePower supply:DC9-12VPCB size:62*27mm1 audio cable is needed. One end is subtracted and connected to the audio input port. The red cable is connected to AUDIO +, the green cable is connected to ADUIO-, and the blue cable is subtracted, do not need to solder.Package included10 x LM3915 10-segment Audio Level Indicator Kit
10pcs 40x40mm thermoelectric Power Generator Peltier Module TEG High Temperature 150 Degree
$55.12Electronic Accessories & SuppliesAdd to cartFeatureColding side posts with the wordsHeating side is emptyRed wire to positive, black wire to the negative, it generate electricity when the temperature difference happenedSpecificationModel:SP1848-27145 Color:whiteLead Length:about 30CMSize:40MM x 40MM x 3.4MM20 degree temperature difference:open-circuit voltage 0.97V, generated current:225MA40 degree temperature difference:open circuit voltage 1.8V, generated current:368MA60 degree temperature difference:open circuit voltage 2.4V, generated current:469MA80 …
10pcs 40x40mm thermoelectric Power Generator Peltier Module TEG High Temperature 150 DegreeRead More
Reviews
There are no reviews yet.