Apr 19, 2024 · Through the above explanation and various other documents, tutorials, reference materials, etc., it is said that WIFI and ADC2 cannot be shared. But the essence is that WIFI occupies ADC2, causing other analog sensors to be unable to read data through ADC2.

With advances in high-speed, high-precision analog to digital converters, IF sampling is now possible. However, the performance require-ments for the ADC must now take on the entire burden of the dynamic range that was once spread across many more components.

Jan 13, 2023 · The WiFi component uses the same ADC that analogRead () uses. Intensive use of analogRead, as in your for loop, can cause the WiFi to have issues. Do you need to sample so intensively? I note you have a 2 second delay in the sampling routine - if you replace this with a 5 ms delay in the for loop does the problem still exist?

The CC32xx provides a general purpose, multi-channel Analog-to-Digital Converter (ADC). Each of the ADC channels supports 12-bit conversion resolution with sampling periodicity of 16 uS (62.5 Ksps/channel).

Mar 19, 2022 · So, if you’re using Wi-Fi and you’re having trouble getting the value from an ADC2 GPIO, you may consider using an ADC1 GPIO instead. That should solve your problem.

May 21, 2012 · For my project, I need 5 ADCs with 10 bit resolution and sampling speed of 1kSps for each channel. Then I need to transfer these values to a PC via Wifi. For Wifi, I found RN-131 wifi module which can communicate with a microcontroller (aurduino) via Tx, Rx pins. My setup will be like Arduino -> RN-131 -> PC.

In addition to meeting stringent power specifications, RF system designers must also ensure that their devices adhere to the latest wireless standards, including Long Term Evolution (LTE) and Wi-Fi.

Mar 18, 2022 · In general anything related to WiFi causes the ADC to get unstable. No matter which ESP32 board you use, you could simply serial plot any ADC1 channel before and after the WiFi initialization command, even with floating ADC1 pins you can see the difference. Serial.begin(500000); // WiFi.mode(WIFI_AP_STA);

An IF-sampling ADC typically refers to any ADC capable of digitizing an IF signal in its 2 nd Nyquist zone (or higher) while still achieving sufficient dynamic range for the target application.

Let’s compare analog RF versus digital RF communication and explore the differences between these two approaches, looking at modulation types, signal quality, encoding techniques, and more.