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.
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.
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.
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
The South Coast Science Praxis offers an out-of-the-box solution for urban air quality monitoring. The Praxis answers both the challenge of capturing accurate data in variable climate conditions and the need for fine grained air quality monitoring networks.
The Praxis offers ultra low noise sensing for gasses (CO, H2S, NO, NO2, O3, SO2, CO2) and particulates (PM1 , PM2.5 and PM10). The device supports multiple analysis techniques including any sampling rate and real time access.
Consistent device function is possible within broad climate range (T/rH) with a casing rated for hostile environments. This includes continuous operation for up to 2 hours in the event of external power loss.
Use Praxis to build a high density air quality network using low-cost, individually baselined devices that use open source device firmware for highly customisable sensing, data delivery and analysis.
Digital front-end for Raspberry Pi (v1)
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.
Digital front-end for BeagleBone (v1)
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.
The Alpha BB Eng. board is compatible with the BeagleBone Cape standards for product indentification, GPIO use, fixing centres and access to camera and display interfaces.
South Coast Science Integrated Front-End (IFE)
The South Coast Science integrated front-end board integrates the Alphasense analogue front-end (AFE) functionality and the South Coast Science analogue digital conversation design on a single board. The single board design decreases size and cost while increasing reliability.
The board supports one sensor mounted directly onto the IFE board and is available for any gas type. The board is suitable for Raspberry Pi, BeagleBone and Arduino developers, offering an I2C interface via a 0.1 inch connector.
Note that, because IFE board sensors are integral to the equipment, electrochemical sensors cannot be swapped without new calibration data being obtained.
Data sheet available shortly.
Alpha BB Sci / Alpha Pi 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. The single board design decreases size and cost while increasing reliability.
The board supports combinations of up to four electrochemical or PID sensors and is available with Raspberry Pi or BeagleBone processor. Compatibility for Alpha Pi Sci or Alpha BB Sci boards is as the Raspberry Pi or BeagleBone DFE boards, respectively.
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.
South Coast Science Nondispersive Infrared (NDIR) SPI Interface board
The South Coast Science NDIR SPI board supports the Alphasense IRC-AT thermopile non-dispersive infra-red CO2 sensor. Connectivity is via Serial Periphal Interface (SPI) Bus and the board is compatible with Alpha BB Eng. and Alpha Pi Eng. boards.
The board may be directly attached to BeagleBone, Raspberry Pi and Arduino hosts using breakout cables.
All South Coast Science device-side and analytic software is open source and written in Python 3. Data formats are JSON for environmental data and CSV.
OpenSensors community edition connectivity
Enables data publishing, subscription and storage using the OpenSensors community edition, providing free-of-charge use for public data.
Delivery: Available now.
OpenSensors building management dashboard connectivity
Enables data publishing, storage and OpenSensors dashboard access. Ideal for urban and internal air quality monitoring as part of a commercial building management suite of sensors and tools.
Delivery: Q2 2018.
Amazon Web Services Internet of Things (AWS IoT)
Enables data publishing, subscription and storage using the Amazon Web Services IoT and DynamoDB systems. Available as a managed service from South Coast Science. Alternatively, customers may run the same services on their own AWS accounts under licence from South Coast Science.
Core device, data consumer and storage available now as a managed service. Available under licence: end Q3 2018.
Automated web management tools and dashboard available incrementally during 2018.
Web data dashboard
A simple web dashboard for the display of timeline environmental and device status information from individual devices. Functionality is growing, in consultation with South Coast Science customers.
Using OpenSensors community edition back-end: available now.
Using AWS back-end: available end Q1 2018.
All South Coast Science device-side and analytic software can be accessed on GitHub.