I have a volume production item developed using the UNO R3
All it does is this :
- Receives 2 channel Analog input 0-5V
- Reads the input and directly writes it to the PWM output pins after spanning the value between 0 and 255.
- These output Pins in turn drive two MOSFETS like the IRF540 connected to two 24V solenoids.
In effect what I am trying to do is drive two solenoids in proportion to the level of 0-5V command signals.
Once developed and checked out I don't need much of the bells and whistles on the UNO board and I just can pull out the programmed MCU and use it on a simple PCB as required by the end application mentioned above.
I guess I will need a MCU programmer for this. Which is a good economical one ( not a very universal one that will program all MCUs know to mankind)
Any other points to watch out in above proposal ?