Hi there, I'm doing some workbench development before PCB. Currently I'm testing the eMMC chip - to be used in four bit mode. Hardware: ESP32 Wroom eMMC device is SD card socket (CS, CLK and four data lines available). All pull-ups in place Two tests: 1. ESP-IDF example SDCARD code 2. Arduino SD Car...

Hi there,

Looking at the reference information its suggesting that we cannot use GPIO6-11 due to those being used by the internal flash. Are there circumstances where these can be used for other SPI devices if we use a separate CS line when using another SPI device?

Thanks

Colin

Hi again, I need to connect to an eMMC device (4 data lines) and an SPI peripheral. I'm confused about the the of the SPI pins on the Wrover as these are shared with the internal flash. Can I use another line as the CS (rather than pin 19/SCS/CMD) and share the spirit pins or do I need to assign tot...

Hi there, I’d live to use a PMIC on a new wearable product. The default boot up voltage is 1.85V thereafter the first code can scale it smoothly to 3.3V before it does anything else. Looking at the data sheets it seems that the esp32 can run off 1.8V -without doing any flash\OTP actions. If the firs...

Is it possible to still use A2DP with ESP mesh running. I have a product under development where one, or more, of the nodes needs to drive sound to selected headphones near it. I have looked and note the wifi/mesh interoperability but not BT Classic/A2DP and mesh. I'm using Wrovers so have the extra...

By the way - I have previously used touch sensors which used a static DC voltage to read the touch sensor - in this situation I drove a plane behind the sensor using a DAC with the average analog sense voltage on the touch pin - this worked very well. The trouble I have with the ESP32 is that it dri...

I'm working on a product development using a touch wheel based on the ESP32 touch sensors. The ESP32 is very close behind the touch wheel and the grounded meta cover is messing with the sensitivity. I could design in a driven shield plane between the touch sensors and the ESP32 metal case but don't ...

Is it possible to still use A2DP with ESP mesh running. I have a product under development where one, or more, of the nodes needs to drive sound to selected headphone near it. I have looked and note the wifi/mesh interoperability but not BT Classic/A2DP and mesh. I'm using Wrovers so have the extra ...

Thanks for responding. I guess I'm trying to implement some audio functions with ADF but don't use the line or mic in and am happy with 8-bit internal DAC and A2DP for audio output. I have space issues and want to avoid using a codec chip if I can. I have a LyraT unit I'm which using for development...

Thank you for your information.