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This module is based on principle of resistive voltage divider design,can make the red terminal connector input voltage to 5 times smaller.FOR Arduino analog input voltages up to 5 v,the voltage detection module input voltage not greater than 5Vx5=25V(if using 3.3V systems, input voltage not greater than 3.3Vx5=16.5V). FOR Arduino AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023),so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V. Voltage input range : DC0-25 V
Voltage detection range : DC0.02445 V-25 V
Voltage analog resolution : 0.00489 V
Output Interface : “+ ” connected 5/3.3V, “-” connected GND, “s” connected for Arduino AD pins
DC input interface : red terminal positive with VCC, negative with GND
By 3P connector, connect this module with the expansion of board for Arduino,not only makes it easier for you to detect voltage battery,can also use the IICLCD1602 LCD to display voltage. Reference Code: #include <Wire.h>
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8. Delivery Time:
|Country||Approx. Delivery time|
China Post Air-Mail
|United States, United Kingdom, Australia||20-30 working days|
|Canada, Western Europe, Northern Europe, Central Europe||20-30 working days|
|Other Country||20-30 working days|
|Fedex or DHL||North America, Australia, Western Europe, Northern Europe, Central Europe||3-7 working days|
|Other Country||5-10 working days|
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1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|
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