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
15x15cm Woven Wire Cloth Screen Stainless Steel 304 60 Mesh
$13.35Mesh & Wire ClothAdd to cartDescriptionStainless Steel 304 Woven Wire Cloth Screen is widely used in acid and alkali environment screening andfiltration, barbecue nets, handicraft nets, food machinery nets, cooking nets.SpecificationMaterial:Stainless steelSize:15x15cm(6inchx6inch)Mesh:60ApplicationWidely used in acid and alkali environment screening and filtration, barbecue nets, handicraft nets, foodmachinery nets, cooking nets, can also be used for solid material classification filtering, liquid and …
15x15cm Woven Wire Cloth Screen Stainless Steel 304 60 MeshRead More
YJ-QCC3003 Bluetooth 5.0 Module for Power Amplifier Board
$47.10Amplifier BoardAdd to cartDetails1. The Bluetooth core uses QCC3003 chip, supports A2DP, AVRCP, HFP, AAC, I2S, etc., and uses 16M SPI FLASH memory chip. DAC adopts imported PCM51022. The electrolytic capacitor adopts the gold word SANYO 470UF/16V electrolytic capacitor to ensure strong and continuous power support.3. High-precision chip resistors are selected for the resistors to ensure a good …
YJ-QCC3003 Bluetooth 5.0 Module for Power Amplifier BoardRead More
10Pcs Orinigal M27C322-100F1 DIP-42 Mbit 32M EPROMs EPROM IC
$23.68Electronic Accessories & SuppliesAdd to cart10Pcs Orinigal M27C322-100F1 DIP-42 Mbit 32M EPROMs EPROMFeatureSuitable for microprocessor systems requiring large data or program storage.It is organised as 2 M Words of 16 bit. The pin-out is compatible with a 32 Mbit Mask ROM.The FDIP42W has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the …
10Pcs Orinigal M27C322-100F1 DIP-42 Mbit 32M EPROMs EPROM ICRead More
120pcs 2.8 4.8 6.3 insert Plug Spring Sheathed Wire Terminal Connector Cold Pressed Terminal 0.5-2.5mm2 Connector
$7.32Electronic 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.DescriptionName:2.8mm Spring ConnectorsMode:DJ622-2.8Applied Wire Diameter:0.5-0.8mm2Material:Brass tinned(Sheath:flame retardant material)Usage:All the device switch,rocker switches,vehicles,battery and domesticuse.Name:4.8mm Spring ConnectorsMode:DJ622-4.8Applied Wire Diameter:0.5-0.8mm2Material:Brass tinned(Sheath:flame retardant material)Usage:All the device switch,rocker switches,vehicles,battery and domesticuse.Name:6.3mm Spring ConnectorsMode:DJ622-6.3Applied Wire Diameter:1.0-1.5mm2Material:Brass tinned(Sheath:flame …
5pcs 1 Channel DC 12V Relay Module Solid State Low Level Trigger 240V2A
$18.21Relay ModuleAdd to cartSpecificationInput Power Supply:12V DC Load Voltage:AC240V 2AMaximum operating current:13.8mATrigger mode:low levelInput control signal voltage(0-2.5V low state relay OFF)(3.3-5V state high relay ON)Blue KF301 terminal connection control line is more convenient.Module interfaceDC +:positive power supply (by relay voltage power supply)DC-:connect power negativeCH:Relay Module signal triggering end (Low level trigger effective)Note:Power must be DC voltage and need …
5pcs 1 Channel DC 12V Relay Module Solid State Low Level Trigger 240V2ARead More
Geekcreit ESP32 WiFi+bluetooth Development Board Ultra-Low Power Consumption Dual Cores Pins Unsoldered
$15.30Smart ModuleAdd to cartDescriptionESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters, and power management module.The entire solution takes up the least amount of printed circuit board area.This board is used with 2.4 GHz dual-mode Wi-Fi and bluetooth chips by TSMC 40nm low power technology,power and RF properties best, which is safe, reliable, and …
RF Envelope Detector Amplitude Detection Discharge Signal Detection Module
$19.67RF amplifierAdd to cartDescriptionThis product uses a voltage doubler detector (consisting of two reverse microwave diodes), 1 time sensitive than single-tube detector(about 6dB),high sensitivity (typical -30dBm, or even to -40dBm) not ordinary 2AP9,1N60 can emulate.The envelope detection principleFeature1. Maximum input:20dBm2. Detection output:The default is positive3. Working Frequency:0.1-3200MHz4. RC Filter:R = 10K, C = 1nF; (two elements in parallel …
RF Envelope Detector Amplitude Detection Discharge Signal Detection ModuleRead More
ZPHS01 All-in-one Gas Detection Module Carbon Dioxide Dust PM2.5 Sensor PM2.5 + CO2 + VOC + Temperature + Humidity Detector
$129.99Sensor & Detector 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.NoteThis is PM2.5 + CO2 + VOC + Temperature + Humidity PM2.5 + CO2 + CH2O + Temperature + Humidity ID:1680902OverviewThis is an all-in-one module integrating VOC sensor, laser dust sensor, infrared …
Reviews
There are no reviews yet.