Search found 2 matches

by RodEnry
Wed Feb 26, 2020 10:37 am
Forum: Hardware
Topic: ESP-Wroom-32D external ADC - SPI or I2C?
Replies: 2
Views: 843

Re: ESP-Wroom-32D external ADC - SPI or I2C?

Thank you for the reply. Using VSPI and HSPI at the same time affects the overall speed of both? Recently I had an issue. I ran different tasks with SPI SD card and another with gyro I2C. The I2c often returned -1 instead of the correct value. This is was caused by SPI that block the I2C communicati...
by RodEnry
Tue Feb 25, 2020 9:24 pm
Forum: Hardware
Topic: ESP-Wroom-32D external ADC - SPI or I2C?
Replies: 2
Views: 843

ESP-Wroom-32D external ADC - SPI or I2C?

Hello everyone, I am struggling with a huge problem (for my inexperience)! I am using a ESP-Wroom-32D ad I'm making my own PCB. I need to acquire at 1000Hz analog signals form external sensors and I noticed that the ESP32's adc is not very usable for high precision measures. So, I decided to use an ...

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