Unit VMeter

SKU:U087

Description

Voltmeter Unit is a voltage meter that can monitor the voltage in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X49).

In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S.

This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits. Each Unit is individually calibrated when leaving the factory, initial accuracy of 0.1%FS, ±1 count, and a maximum measurement voltage of ±36V.

EEPROM (0x53) has built-in calibration parameters when leaving the factory. Please do not write to the EEPROM, otherwise the calibration data will be overwritten and the measurement results will be inaccurate.

Features

±36V range
LED power indicator
16-bit ADC conversion
Resolution: Auto range, Count ≤ 16V, 1mV; Count > 16V, 7.9mV
Initial accuracy 0.1%FS, ±1 count
Built-in CA-IS3020S isolation chip, anti-interference
Isolated DC-DC
Up to 1000 VRMS isolation withstand voltage
Development platform: Arduino, UIFlow (under development)
2x LEGO compatible holes

Includes

1x Voltmeter Unit
1x Grove Cable(20cm)

Applications

voltmeter

Specifications

Resources	Parameter
Resolution	Auto range, Count ≤ 16V, 1mV; Count > 16V, 7.9mV
Measuring range	±36V
Initial Accuracy	0.1%FS, ±1 count
Communication protocol	I2C:0x49
Net Weight	9g
Gross Weight	24g
Product Size	65248mm
Package Size	675312mm

EasyLoader

EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.

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