Hello,
I'm just starting out in this field of freelancer, and for this reason the cost offered is the least since I have no references.
For your peace of mind, I am an electronic engineer and I have experience in circuit design.
I would love the opportunity to help them with their project.
I can help you in the technical advice, to choose the best way to manufacture it and at the lowest cost of production, as well as to carry out all the design and programming necessary.
I have extensive knowledge in microcontroller programming, and PCB design.
I am already at your disposal.
regards
Guillermo