Hello, I am a Telecommunications and Electronics Engineer with a deep knowledge in systems with micro controllers and Arduino. I can make your system using an interactive simulation software called Proteus (from Labcenter Electronics), Proteus has almost all the components we need (Arduino Mega board, relay, thermocouple, stepper motor, stepper motor driver, pwm to analog converter, transistor, resistor, etc.). In case Proteus does not have a model for any of your devices, with a detailed description or the data sheet I can model its behavior. I can carry out the operations in the document, we only need to agree in detail on the test conditions.
I offer you a guarantee above every body. I CAN MAKE YOUR SYSTEM BEFORE MILESTONE PAYMENT, this way YOU CAN SEE THE BEHAVIOR OF YOUR SYSTEM BEFORE BUYING IT. I just need to know that you will hire me, we can follow the following steps:
1-) We agree on every little detail, I like to spend a lot of time on this step.
2-) I make the system just the way you need it and I send you a video with the simulation.
3-) Once you have seen the simulation, if you are satisfied with the system, you make the milestone payment to me, I send you the project, code, schematic, bill of materials, assembly instructions, etc.
4-) You verify the project and release my payment.
Please contact me in the chat, you will not regret it. I can implement any logical behavior that you need and I will give you the best cost-benefit relationship.
Best regards.