I am ignorance of this as I am new to coding. My project is of high precision and accuracy. I plan connecting an analog sensor to the ADC of either Arduino or Teensy4.1. Then connect my ESP32 to the Arduino or Teensy so that I can transmit the data wirelessly using ESPnow protocol. Any advice or is it visible at all? if yes, how do I go about it. Many thanks in advance
Why don't you connect your analog device directly to your ESP32? It is much, much simpler to deal with just one chip.
You need to define what this means. Arduino ADC is not the best available. 10 or 12 bits.
My project is about mounting the analog sensor and the board in a rotating tool. Then transmit the data wirelessly to another board. ESP32 ADC can only go up to 1ksps but Teensy is 1Msps sampling rate. I am thinking of attaching the sensor to the Teensy ADC . I have attached the ESP wifi chip
and transmit the data via the ESP32 wifi board.
Please, any with useful advice?
Two months later and you did not answer post #2..
Would you need one million samples per second?
How would a 16 MHz controller handle that?
I have changed my mind to use ESP S2 MINI which is 240MHz , connect it to Teensy 4.1 using UART. Then send the ADC pin values of the Teensy via ESP S2 mini to another ESP32 S2 mini using ESPnow or WiFi. Is this visible? I am sending not more than 20kHz signals
Why so many CPU's???
I am almost up to the point of flagging you for trolling...
how will you transmit one million samples per second? how will you process them?
a few years ago I was involved in a project sampling between one and five million samples per second - two ADC channels were sampled using a Texas DSP (Digital Signal Processor with a floating point coprocessor), the samples transmitted over Gigabit Ethernet to a high power PC to be processed by Matlab
the Texas DSP and ADC alone cost over £5K
perhaps you need to tell us your projects requirements specification
I want to take advantage of the Teensy4.1 high processor speed. Unfortunately, it doesn't have a WiFi module. The ESP32 has a Wifi module and supports ESPnow to transmit the data wirelessly.
I really do not see the point.
Also: this is not a beginner project.
Start simple.
One esp to read the samples and send to a laptop...
That's great, but then using a UART to send this data to an ESP will cause your Teensy to waste a ton of cycles doing nothing but waiting for the UART to finish. Even running at some maximum speed like 2,000,000 bps the UART will still not keep up. Then, the ESP doing Wifi will be slow as well compared to this.
we still have not seen a projects requirements specification
post 3 presented a vague project outline processing rotating tool ADC data on the Teensy4 and then transmit the results using WiFi to a static station
the Teensey4 has a floating point coprocessor and DSP instructions with supporting libraries - do you require this functionality to process the ADC data?
hence the ESP32 is not suitable for acquiring the data
how much data (bytes/second) is in the results after processing which need transmitting to the static station?