This project is one of my first paid projects. I developed this device in collaboration with my programmer friend. My task was to completely design, manufacture, and test the hardware.

The device is intended for industrial compressors for compressed air production. It was important for the device to be connectable to existing sensors in the compressor. Additionally, relay output, pulse input, and Modbus communication with an electricity meter were added. The device had several functions. The most important function was measuring and recording all measured values onto a microSD card and sending real-time data via GSM over the internet to the customer’s server database. The device had to be secure enough to prevent data manipulation or device copying.

Currently, I have no information on whether this device is being produced or used. Prototypes have been completed and prototype testing was successful. The customer was satisfied with our work.