I'm working on a project that requires me to controle the temperature of 9 TEC ( Peltier device ) depending on various parameters.
Overall, I need to control those 9 TEC and retrieve data from around 15 sensors.
Each TEC needs at its peak a current of around 0.3A and a tension of 3V . I was planning on buying a mega Arduino 2560 and a shield like this one (SparkFun Power Driver Shield Kit - DEV-10618 - SparkFun Electronics) but I have several questions :
Are there any affordable shield that provides 9 PWM output ?
I need the PWM frequency to be above 300HZ. I think it is the case for the Arduino , is it still the case for the shield ?
Is the 2560 the best arduino for what I'm planning ?
Any help is welcomed
NB: I'm pretty new to electronics and not a native English speaker so sorry if parts of this post aren't as clear as they should be.