Library for Meters using M5UnitUnified.
M5UnitUnified is a library for unified handling of various M5 units products.
Ameter(SKU:U086) Unit is a current meter that can monitor the current in real time. The 16-bit ADS1115 ADC (analog-to-digital) converter can be used to communicate through I2C protocol (By default the I2C address is 0X48 unless manually modified).
In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply.
The I2C interface is also electrically isolated through the low-power isolator module 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 factory calibrated with initial accuracy of 0.1%FS, ±1 count and resolution of 0.3mA.
The unit has a maximum measurement current of ±4A, and an internal integrated 4A fuse to prevent excessive measurement current from burning out the circuit.
Voltmeter(SKU:U087) 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.
KMeterISO unitis an integrated K-type thermocouple sensor unit that integrates the functions of "acquisition + isolation + communication", using STM32F030+MAX31855KASA 14bit thermocouple digital conversion chip scheme to achieve high-precision temperature acquisition and conversion, MCU using STM32F030 to realize data acquisition and I2C communication interface,
using CA-IS3641HW as a signal isolator. The unit supports access to thermocouple probes with a measurement range of -200°C to 1350°C, and adopts a universal standard K-type flat interface, which is convenient for subsequent replacement of different measuring probes to match different needs.
This module is widely used in application scenarios such as temperature collection, control, and monitoring in industrial automation, instrumentation, power and electrical, heat treatment and other fields.
See also examples using conventional methods here.
See also examples/UnitUnified
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