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
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car Module
$41.54Driver ModuleAdd to cartDescriptionThe four channel L298N motor drive module integrates two L298N chips and can drive four DC motors to realize the control of forward and backward rotation and motor speed. The module is equipped with LM2596S step-down chip. If the motor with 7V voltage or more is driven, 5V power can be output to the control …
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car ModuleRead More
Geekcreit D1 Mini ESP32 ESP-32 WiFi+bluetooth internet of Things Development Board Based ESP8266 Module
$21.86Motherboard & Development BoardAdd to cartMore informations:https://github.com/LilyGO/ESP32-MINI-32-V2.0DescriptionThis is D1 Mini ESP32 ESP-32 WiFi+bluetooth Internet Of Things Development Board.Use exampleit can also match the next productPackage included4 x Long female pins4 x short female pins4 x Normal pins1 x mini D1 ESP32
AF1020 Dust-proof Probe Super-stable Pipe-type Current-type Temperature and Humidity Transmitter Temperature Senor Humidity Sensor
$176.16Solar CollectorsAdd to cartSpecificationModel:AF1020 Type Temperature and Humidity TransmitterTemperature measurement range:- 40 ~+80 (℃)Measurement accuracy:+-0.5 (℃)Working Voltage 15-36 (V)Humidity accuracy:+-3% RHHumidity measurement range:0-99.9% RHCurrent output:4-20 m AInstructions1. Power cord positive DC18~36V (red wire)2. Power ground wire GND (black wire)3. Humidity current output 4~20MA (yellow line)4. Temperature current output 4~20MA (white line)Installation sequence1. Connect the red, black, yellow and …
3Pcs 5M Meter thermometer Electronic Digital Display FY10 Embedded thermometer indoor and Outdoor Temperature Measurement
$20.72Test & Measuring ModuleAdd to cartFunction introductionOverall size:48*28*15mmInserted hole size:46*27mmLCD temperature display-50→ to 110→ temperature measurement, 0.1 degree resolution.C and F display versions are availableStandard 0.8m waterproof probeCable length:5 meterPackage includes3 x Thermometer
Peacefair PZEM-028 AC Digital Multifunction Meter Voltmeter Ammeter 0~100A/400V Power Factor Meter
$27.97Electronic Accessories & SuppliesAdd to cartError adjustmentThe product is 100% calibrated before leaving the factory, and the user can also manually adjust the error by himself. The method is as followsStep 1:Long press the button (about 3 seconds) until the digital digit on the screen flashes, then release the button;Step 2:Digital flashing means entering the error adjustment state, the digits …
3pcs 433MHz RF Wireless Receiver Module Transmitter kit + 2PCS RF Spring Antenna OPEN-SMART for Arduino – products that work with official for Arduino boards
$12.11Smart 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.DescriptionThe kit includes one pair of transmitter and receiver modules and one pair of spring antennas for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage Generator
$55.81Power Supply ModuleAdd to cartFeatureThe high-voltage module uses the principle Tesla coil is made of high-voltage pulse output voltage current, small size, high efficiency, simple external circuit(just plug in the switch, the battery can be) discharge intensity violent.SpecificationModel:MC-105Volume:Length 65mm Diameter 24mm, Diameter of cut surface 22mmVoltage:Input DC3.7-6V, output DC200-400KVCurrent:Input 4A, output 0.5ALength:Input 10 cm or so, the output is …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage GeneratorRead More
Reviews
There are no reviews yet.