top of page

OpenPAYGO™ Link

The free open-source communication protocol integration for Token and Metrics cross-communication between PAYGO controllers and appliances.


This open-source technology was developed by SolarisLab, in partnership with Efficiency for Access. OpenPAYGO™ Link is a free, secure, and open-source communication protocol for PAYGO appliances that promotes interoperability among devices and provides a fixed, reliable connection. This technology of the OpenPAYGO™ Suite serves as a direct physical connection which links smart home appliances to PAYGO-enabled SHS. 

How does OPL work

How does OpenPAYGO™ Link work?

OpenPAYGO™ Link combines both a wired connection and an open-source communication protocol to provide an inexpensive and easy-to-integrate solution for devices in the field. Based on LIN standards, OpenPAYGO™ Link is designed to be a low-cost solution while remaining robust and modulable for optimised communication between devices and simple implementation in the field. 

Learn more about our financial partner:


Join the Paygo revolution!

1 (11) (1).jpg

How to implement OpenPAYGO™ Link:

To implement this technology, there are a few options depending on your precise system requirements:

  1. The STM8-based development board: this small PCB includes the hardware required for OpenPAYGO™ Link (MCU + transceiver) as well as a buck converter to supply power from the power line, a switch controlled by the MCU, a push button and an LED to facilitate testing.

  2. The STM8-based addon board: this small PCB includes the bare minimum required for OpenPAYGO™ Link. You can add this addon board to an existing PCB as a way to quickly add the OpenPAYGO™ Link to your system without making any changes to the main MCU of your system

  3. Adapt the library for your main MCU: This is the most cost-efficient method as it does not require a secondary MCU just for OpenPAYGO™ Link.  This also requires your MCU to be compatible with 9-bit multiprocessor UART. 

Our engineers are currently working to evolve the span of OpenPAYGO™ Link to increase the technology’s modularity and expand the capabilities of OpenPAYGO™ Suite. 

Our vision

Through experience, SolarisLab engineers have found that there is a discrepancy within PAYGO market devices when it comes to larger appliances. The idea driving the development of OpenPAYGO™ Link is to provide a useful technology which would permit larger appliances (refrigerators, freezers) to be connected to SHS which already have a token entry mechanism implemented (interface), making them PAYGO ready. OpenPAYGO™ Link can be installed with the addition of a small module to enable connectivity with SHS in the home, which can then serve as an interface for the device itself. 

Looking for more information? Contact us.

Our technology is designed to be intuitive to integrate, but our engineers provide assistance when needed.

Thank you for contacting us, we'll get back to you as soon as possible!

Read more

bottom of page