Hello,
i need help with the following topics
Choosing a microcontroller
Choosing a comms protocol
Reducing EMI, issues with an onboard audio amp
MCU
I am slightly experienced in Arduino mega 2560 so that would be familiar,
I'm learning PIC and would be open to options from there.
I have a need of :
1 USB
2 ch audio out.
10 inputs that detect change (0v to 12V+ or 12V+ down to 0v)
18 Outputs to use with a MOSFET bank (switching 12v/10A outputs)
10 Outputs with parallel/ daisy-chainable comms that can output each output to 32 addressable slave units, each with their own microcontroller.
which leads to my next question.
COMMS
what comms can I send down the line, to tell each unit, you are "[recive data] > [do this] > [send remaining] "
[Master]>[slave]>[slave]>[slave]>[slave]>[slave]>[slave]>[slave] end
I have 6 wires available, 2 dedicated 12v+, GND and 4 remaining for data and clk.
EMI
I'm trying to reduce the amount of EMI produced because this equipment will be in close proximity to sensitive radio equipment
and will have its own audio amp built into it.
i need help with the following topics
Choosing a microcontroller
Choosing a comms protocol
Reducing EMI, issues with an onboard audio amp
MCU
I am slightly experienced in Arduino mega 2560 so that would be familiar,
I'm learning PIC and would be open to options from there.
I have a need of :
1 USB
2 ch audio out.
10 inputs that detect change (0v to 12V+ or 12V+ down to 0v)
18 Outputs to use with a MOSFET bank (switching 12v/10A outputs)
10 Outputs with parallel/ daisy-chainable comms that can output each output to 32 addressable slave units, each with their own microcontroller.
which leads to my next question.
COMMS
what comms can I send down the line, to tell each unit, you are "[recive data] > [do this] > [send remaining] "
[Master]>[slave]>[slave]>[slave]>[slave]>[slave]>[slave]>[slave] end
I have 6 wires available, 2 dedicated 12v+, GND and 4 remaining for data and clk.
EMI
I'm trying to reduce the amount of EMI produced because this equipment will be in close proximity to sensitive radio equipment
and will have its own audio amp built into it.