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Products

Each South Coast Science product is adapted to specific use cases, covering internal and external air monitoring, and electrochemical component evaluation.

We offer a modular range of equipment across a grid of gas types, host microcontrollers, and product deliverables.

Gas types

South Coast Science can deliver on all of the gasses supported by Alphasense electrochemical sensors: CO, H2S, NO, NO2, O3, and SO2 .

In addition, an Alphasense photoionisation detector (PID) is available for measurement of volatile organic compounds (VOCs) to part-per- billion resolution.

Electrochemical sensors and PIDs can be deployed in almost any combination of two, three or four sensors per device.

CO2 measurement can be performed by devices with the Alphasense non-dispersive infrared(NDIR) sensor.

South Coast Science boards are provided with an interface for the forthcoming Alphasense digital NDIR product.

Particulates – PM1 , PM2.5 and PM10 – can be sampled using the Alphasense optical particle counter OPC N2, and future OPCs.


Microcontrollers

South Coast Science circuit boards are designed for use with a growing number of common host microcontrollers covering educational, environment-hardened and low-power applications.

The first offering is for Raspberry Pi. A BeagleBone interface is currently being tested. A design for the Arduino header is in development.


Product deliverables

Crucially, South Coast Science presents each product as a range of alternative deliverables:

• Complete devices, with enclosures suited to internal or external settings, with built-in local area or GSM communications

• Populated and tested circuit boards, ready for attachment to custom monitoring devices or use in an educational or evaluation setting

• Licensed circuit designs, appropriate for large-scale local manufacture

Complete devices can be configured for communication via ethernet, Wi-Fi, GSM, or on-board recording. LoRa support will be provided in the future.


Alpha Pi Eng.

alpha-pi-eng-400
A digital front-end for Alphasense AFE products, for use with the Raspberry Pi 2 and Raspberry Pi 3 microcontrollers.

The Alpha Pi Eng. board conditions the analogue output of the AFE and provides digitisation of electrode voltages up to a rate of two samples per second for individual gasses, or one sample persecond for four gasses. In addition, the device can read electrochemical sensor temperature, and atmospheric temperature and humidity.

The board has interfaces for the Alphasense digital NDIR sensor, and current or future OPCs.

An integrated battery holder is provided to enable the electrochemical sensors to remain charged when the device is not powered. The device can therefore perform accurate sampling shortly after start-up.

The Alpha Pi Eng. board is compatible with the Raspberry Pi Hardware Attached on Top (HAT) standard for product identification, GPIO use, fixing centres and access to camera and display interfaces.

Datasheet available shortly.

Delivery: available now.


Alpha BB Eng.

alpha-bb-eng-400
A digital front-end for Alphasense AFE products, for use with the BeagleBone Green and BeagleBone Black microcontrollers.

The performance and functionality of the Alpha BB Eng. board is identical to that of the Alpha Pi Eng. Mechanical layout is different, in order to accommodate the BeagleBone headers, connectors and power input.

Datasheet available shortly.

Delivery: Q1 2017


Alpha BB Sci.

The Alpha BB Sci. board integrates Alphasense analogue front-end (AFE) functionality and the South Coast Science analogue-digital conversion (ADC) design on a single board.

Electrochemical sensors are therefore mounted directly onto the Sci. board, saving cost and size, and increasing reliability. The Alpha BB Sci. board is ideal for both field deployments and educational settings.

Note that, because Sci. board sensors are integral to the equipment, electrochemical sensors cannot be swapped without new calibration data being obtained.

Datasheet available shortly.

Delivery: Q2 2017


NDIR Pi Sci.

The NDIR Pi Sci. board integrates the Alphasense digital NDIR for CO2 measurement design with a Raspberry Pi interface. This is the lowest-cost device, and is ideal for use in educational settings.

The board also provides temperature and humidity measurement, together with an interface for optical particle counters.

The NDIR Pi Sci. board is fully-compatible with the Raspberry Pi Hardware Attached on Top standard.

Delivery: Q3 2017


Software

All South Coast Science device-side and analytic software is open source and written in Python 3.

The current device software stack can be used to control devices and perform monitoring on the device command line and over a local-area network connection. Data formats are JSON for environmental data and CSV.

A lightweight analytic suite is provided to manage data storage and chart data. Analytics can be performed on the device itself, or more usually on another host on the same LAN.

OpenSensors.io connectivity is under development.

Delivery: Q4 2016.

A cloud-based helper application to remotely manage devices, automate OpenSensors.io topic creation, and provide a data dashboard is under development.

Delivery: Q1 2017.


All South Coast Science device-side and analytic software can be accessed on GitHub.