ESP32 WROVER (I) Pullup Resistors
Posted: Thu Mar 07, 2019 12:51 pm
I'm making a custom PCB using the ESP32-WROVER (I). The silkscreen on my device says ESP32-WROVER-V4 and has 18 16 at the top. I've read through the documentation multiple times and have searched the forum but still I'm confused and have several questions.
1) Should I include a pull-up resistor on my board for any GPIO I use? Should it be 10k or 4.7k?
2) I want to use the on-board memory (16MB) but I'm not certain if I should configure it for 3.3V or 1,8V. Also want to confirm where I place resistor for config.
3) My custom PCB was recognized as a serial device on my Windows PC but I could not get the SW flash to execute. I'm using reset circuitry found in a number of examples, but the SW flash never kicks off (using the latest Arduino IDE). I do not have any pull-up / down resistor on GPIO 0. Wondering if I should?
Any words of wisdom or pointing me to pertinent information is greatly appreciated. Thanks
-TO
1) Should I include a pull-up resistor on my board for any GPIO I use? Should it be 10k or 4.7k?
2) I want to use the on-board memory (16MB) but I'm not certain if I should configure it for 3.3V or 1,8V. Also want to confirm where I place resistor for config.
3) My custom PCB was recognized as a serial device on my Windows PC but I could not get the SW flash to execute. I'm using reset circuitry found in a number of examples, but the SW flash never kicks off (using the latest Arduino IDE). I do not have any pull-up / down resistor on GPIO 0. Wondering if I should?
Any words of wisdom or pointing me to pertinent information is greatly appreciated. Thanks
-TO