SmartPi 2 incl. 3 Current Probes

Détails

The Smart Pi 2 expansion module extends the Raspberry Pi with interfaces to measure voltage and current in a contactless manner. It enables to control electricity production consumption and turns the Raspberry Pi into a full featured smart meter. All measurement data can be stored and are accessable via the local network or Internet for disposal.

Current is measured contactless via inductive current sensors. In the standard version currents up to 100 A can be measured. A simple changeover of the jumper enables the connection of any cable re-converter with a secondary current of 1 A. This allows currents of up to 700 A and more to be detected.

The SmartPi 2 has 4 inputs for current measurement (L1, L2, L3, N) and three inputs for voltage measurement. This allows measurements on all three phases and even the neutral conductor. The SmartPi 2 and the Raspberry Pi can be powered by the voltage input. An external power supply is not required.

If the voltage measurement is connected, the direction of the energy flow can be determined and the SmartPi is a full-fledged bi-directional smart meter.

Other units:

Current
Voltage
Power
Active power
Reactive power
Apparent power
Energy consumption
Energy generation
Power consumption
Power generation
Power frequency
Cos phi

The interfaces to the Raspberry Pi are electrically isolated to ensure maximum safety.

Website and REST interface

Open Source software is written in Go and includes all the necessary drivers, a web server with web page and a REST interface. All measurement data can be logged and displayed on tablet or smartphone. The REST interface allows to integrate the SmartPi into self-made applications and apps.

Application examples for the SmartPi:

Energy Monitor via network and Internet
Monitoring of power frequency
Power monitor
Alarms for electricity consumers
Alarms at increased consumption
Integration into energy management systems
Cost control

Software features:

Reading current, voltage, power, and many other data
Minutes store the values in the database
MQTT Support
Prometheus support (not yet documented)
CSV FTP upload
Web interface for display and configuration
UMTS support

Features / Specifications:

Raspberry Pi compatible connector
Raspberry Pi compatible size
Galvanic isolation
Integrated power supply from the voltage measuring path via stable terminals
Open-source driver and API
Current measurement at 3-phase + neutral conductor
Connection for inductive current sensors with a secondary output of 50 mA and 1 A
Screw terminals for connection of current and voltage measurement
Compatibility with all Raspberry Pi models
Battery-buffered RTC (the Raspberry Pi continues to run even without an Internet connection after a power failure)
Integrated RS-485 interface for connecting Modbus devices (software support available soon)
Relay for switching
Additional status LED
Valuable housing with DIN rail mounting