SMS-controlled relay board, rebuilt and shipped working
A board that switches a relay by text message was the last thing holding up a bigger project. We rebuilt it, tested it end to end and shipped it.
The brief
The client's controller was meant to switch an external low-power relay from simple text messages like 'on' and 'off'. The code threw multiple errors, the PCB was possibly damaged, and the board was the final step holding up a larger project, with a one-month deadline.
What we built
- Sourced the components and rebuilt the controller
- Wrote a new Arduino sketch with reliable SMS command handling
- Fitted a global SIM and tested the full command cycle on our bench
- Shipped the working unit, with the source code supplied on a flash drive
How it was delivered
We kept going until the client could verify it working on their own setup, and put in more hours than either side had planned.
Result
Two more projects followed: a control prototype box, built and tested on video before shipping, and a further hardware prototype that may lead to production.
Devices like this are where small edge models fit: a camera or sensor on the same board can decide when to switch, not just a text message.
Voxlivo: the AI receptionist we built and run
An AI phone receptionist for plumbing and HVAC companies. It answers in about two seconds, day and night, and books the job.
Modular data acquisition platform in LabVIEW
One application that acquires, displays, logs and alarms on data from test hardware, built to grow as new instruments are added.