ATM90E32AS-Energy Metering Module

The ATM90E32AS-EnergyModule can monitor the energy usage in your entire home in real time. It can easily be hooked up to an ESP8266 or ESP32 to wirelessly transmit energy usage data into a program like EmonCMS or ESPHome/Home Assistant. It can also be used to monitor solar power generation to keep track of how much power you are making.


 With the ATM90E32AS-Energy Module you can:

*   **Save Money! **
    *   See exactly how much money you're spending on energy in real time
    *   Find appliances that are using too much electricity
    *   Calculate energy usage for a single room to divide an energy bill fairly among roommates
    *   Industrial Energy Metering and monitoring

*   **View & Gather Energy Data**
    *   View the energy usage of your entire home
    *   Track solar power generation (two units required)
    *   Calculate how much it costs to charge your electric vehicle
    *   Remote energy monitoring for vacation or rental properties
    *   Review and graph historical energy data

*   **Be Informed! **
    *   Independent of your power utility's meter
    *   Set up alerts for over or under usage
    *   Prevent surprises on energy bills
    *   View usage data in the EmonCMS Android or iOS apps
    *   Automate notifications with your home automation system like "send my phone a message when the dryer is done", or even "if I leave the house, and the oven is on, send me an alert" (programming required)

*   **Spend less on energy monitoring hardware! **
    *   Affordable but very accurate
    *   Save hundreds over popular monitoring systems

Features:

* **IC: Microchip ATM90E32** (Enhanced Poly-Phase High-Performance Wide-Span Energy Metering IC)

* **Connectivity**
     * SPI Interface to connect to any Arduino compatible MCU. (4-wire SPI interface (CS, SCLK, SDI and SDO) for external MCU connection. MCU can perform chip configuration and register reading/writing through SPI.)
     * Two IRQ interrupts, and one Warning output
     * The M90E32AS provides four energy pulse output pins: active energy pulse CF1, reactive energy pulse CF2 (can also be configured as apparent energy pulse), fundamental energy pulse CF3 and harmonic energy pulse CF4. They can be used for energy metering calibration and can also be connected to MCU for energy accumulation.
     * Provides three zero-crossing pins ZX0, ZX1 and ZX2 which can select different phase’s voltage or current as zero-crossing judgement.

Real Time Data Sampling**
Calculates**
Other Features**

***Note: Bulk productions can be made upon request. Design Changes can possible.