Search found 6 matches

by nacheitor
Mon Nov 14, 2022 12:26 pm
Forum: Hardware
Topic: Error in GPIO39 and GPIO36
Replies: 0
Views: 1004

Error in GPIO39 and GPIO36

Hello, I am using a board (Fysetc E4) based on esp32 for a 3D printer. But due to the few outputs of the esp3d I want to use the bed temperature sensor pin to control an endstop. The problem is that the extruder temperature sensor is on GPIO36 and the bed temperature sensor is on GPIO39. I have conf...
by nacheitor
Wed Jan 26, 2022 4:48 pm
Forum: ESP-IDF
Topic: Linking error esp32-cam example.
Replies: 1
Views: 3394

Linking error esp32-cam example.

I'm trying to compile the example esp32-cam. I added to platformio.ini the following: [env] lib_deps = esp32-camera And enable PSRAM on menuconfig. But I get this error when compiling: Processing esp32cam (platform: espressif32; board: esp32cam; framework: espidf) -----------------------------------...
by nacheitor
Wed Feb 03, 2021 12:21 pm
Forum: ESP32 Arduino
Topic: PSRAM error in ESP32-CAM
Replies: 1
Views: 7546

PSRAM error in ESP32-CAM

Hi, I am trying to make a project with an ESP32-CAM using the Arduino ide. The particular microcontroller is this (https://www.amazon.es/TECNOIOT-ESP32-CAM-Bluetooth-Development-Included/dp/B07RT1S35R/ref=sr_1_7?__mk_es_ES=%C3%85M%C3%85%C5% BD% C3% 95% C3% 91 & dchild = 1 & keywords = esp32 + cam & ...
by nacheitor
Thu Nov 05, 2020 9:48 am
Forum: Hardware
Topic: Feed an ESP32 project
Replies: 6
Views: 6051

Re: Feed an ESP32 project

I have an external source that powers the pololus (a4988), while the esp32 is powered by usb. The only connections between the pololu and the esp32 are the STEP, DIR lines, and ground. If I turn off the usb source the reading of the i2c sensors is successful. If I turn on the 12 source, I start to h...
by nacheitor
Mon Oct 26, 2020 10:37 am
Forum: Hardware
Topic: Feed an ESP32 project
Replies: 6
Views: 6051

Feed an ESP32 project

Hi everyone. I am developing a project with an ESP32 microcontroller. I have connected several sensors (8 sensors) to the I2C bus and the readings work correctly, all powered from the board's usb (esp32-wroom-32). Through the USB I also read the data from the computer. The problem happens when I try...
by nacheitor
Fri Oct 09, 2020 9:02 am
Forum: Hardware
Topic: Error reading several vl6180x
Replies: 1
Views: 2673

Error reading several vl6180x

I am trying to read several vl6180x laser sensors from an ESP32. When connecting a single sensor to the i2c bus everything works perfectly, but when I connect more than 3, I can no longer read the sensors. I have tried removing all pullup resistors (vl6180x integrates a 10k pullup resistor in SDA an...