Overview

The RPIZCT4V3T2 can be configured to read both single phase and 3 phase systems.

Several temperature sensors can be interfaces. It has support for both DS18B20 temperature sensor and RTD thermocouples.

It is designed to host a user provided Raspberrypi zero.

This is stackable with 1

An enclosure solution is proposed using aluminium extruded case.

Specifications

cpu

Hosts RaspberryPi Zero
ATmega328 mcu (Arduino UNO)

Sensors

4 CT sensors
3 AC Voltage
1 DS18B20 port (temperature)

Power

Powered from Raspberrypi (microusb)

Other

Fits in Aluminium Enclosure from Evatron
Option to stack mezzanine board for additional sensors.

Recommended sensors

AC Current sensor: SCT-013-000
AC Voltage sensor:
- UK: 77DB-06-09
- EU: 77DE-06-09
- US: 77DA-10-09
Temperature: DS18B20

Temperature Sensor

The temperature port supports mutiple sensor on the same Onewire line.

The sketch is programmed to search for all connected probe at bootup and output all their values when polled. If a new probe is connected the arduino mcu should be restarted for the new probe to be registered.

Multiple probes should connected as shown below.

Software Configuration

The documentation for serial configuration can be found on this page.
Over Serial Configuration - Sketch 2.0

The default configuration can be obtained using the command

version 2.0:

wget lechacal.com/RPICT/config/B4/rpiz_ct4v3t1.conf

The online configurator can be used with the RPIZ_CT4V3T1. Use a single board of RPICT4V3 when editing the configuration.

Online configurator.

Enclosure

The board has been designed to fit inside an aluminium extruded enclosure. 3D printed end plates are provided. Enclosure kit is available in the shop.