MicroPython Forum (Archive)

I am confused. I started with official firmware and quickly switched to loboris firmware. I can set sd card mode (SPI) and pins at will with this: uos.sdconfig(uos.SDMODE_SPI, clk=5, mosi=18, miso=19, cs=15) This MUST have been loboris firmware because I couldn't find this method under uos in the of...

I am trying to get a bit of networking using usocket on WROOM but maybe there wasn't enough memory. I have the standard firmware: rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock d...

I am trying to understand pin functions and mapping of ESP32 and need some help. have the following questions: 1. GPIO 37 and 38 or sensor_capp and sensor_capn. These pins are not on the WROVER module's breakout pads. They are probably under the metal cap and have the 270pF caps on them as indicated...

Thank you Loboris! I happened to have picked GPIO4. After reading the doc you provided, and the list of pins you provided, I now understand that all of these pins belong to VRTC group that can wake the CPU. I would probably have come to the same conclusion with a lot more time and frustration withou...

I am trying to use a DS3231 to wake ESP32. Is any ESP32 GPIO pin able to wake the processor or are there specific pins that can do that? I read the ESP32 doc and it didn't really cover it. Could anyone point to a good source to read about power modes and how to use micropython to run these modes? Th...

Found the thread I started 3 months ago! Content was related to this post:
https://forum.micropython.org/viewtopi ... =18&t=4607

By the way, I got my first pyboard. It's really tiny and comes without headers. I guess I'll start asking questions regarding the pyboard besides ESP32.

Thanks guys. I'll grab some NPN BJTs. I'm learning everyday. I remember reading esptool.py 6 months ago to understand this boot process but that and a diagram I made were the only two things left. It's really hard to learn this kind of stuff when you are older, not even old, just older. I'll read es...

This circuit is supposed to be able to reset ESP32 or put it in boot mode. I read about the reset and boot about 6 months ago and due to age :lol: I've not remembered all that I learned. I think just pulling RESET to LOW for more than 100ms will reset the processor. If you want to put it in boot mod...

Thanks for testing. I followed your method and got the same results as you. Now I am a bit confused. I'll retest my original hardware again. I've been using transistor-type of bi-directional level shifter on the ESP32 at 3.3V with my ATMEGA328P at 5V. I'll switch to a 74HC4050 and test tomorrow. I w...