16 channel analog input
Posted: Sat Sep 09, 2017 1:08 pm
Hi,
I just discovered the ESP32 soc, and I find it very interesting as it has 18 analog inputs.
on the web I found that the driver only supports 1 ADC (9 channels) and that a number of channels are already in use internally.
Is there a way to use the device for 16 analog inputs, and at what speed can it sample those 16 channels.
I want to measure AC current, using 16 current clamps.
Is DMA possible to directly put a number of samples into memory, so the cpu is free for calulations on the samples (rms or mean value calculations) ?
I just discovered the ESP32 soc, and I find it very interesting as it has 18 analog inputs.
on the web I found that the driver only supports 1 ADC (9 channels) and that a number of channels are already in use internally.
Is there a way to use the device for 16 analog inputs, and at what speed can it sample those 16 channels.
I want to measure AC current, using 16 current clamps.
Is DMA possible to directly put a number of samples into memory, so the cpu is free for calulations on the samples (rms or mean value calculations) ?