Search found 6 matches

by FrankNabas
Fri Jun 27, 2025 1:59 am
Forum: Hardware
Topic: ESP32 heap management and the esp_lcd_new_i80_bus API
Replies: 1
Views: 280

Re: ESP32 heap management and the esp_lcd_new_i80_bus API

Alright I've figured out. Will post the findings here if someone has the same problem.

Firstly I was wrong. The allocation attempt causing the problem wasn't the one allocating for the bus handle, but the one allocating for the format buffer. Here's the call:


#if SOC_I2S_TRANS_SIZE_ALIGN_WORD ...
by FrankNabas
Tue Jun 24, 2025 11:37 pm
Forum: Hardware
Topic: I2C Master Bus multiple peripherals with same address
Replies: 6
Views: 527

Re: I2C Master Bus multiple peripherals with same address

Awesome, thank you very much for the help!
by FrankNabas
Tue Jun 24, 2025 11:35 pm
Forum: Hardware
Topic: ESP32 heap management and the esp_lcd_new_i80_bus API
Replies: 1
Views: 280

ESP32 heap management and the esp_lcd_new_i80_bus API

Greetings everyone!

I am trying to use a LCD TFT display using the esp-idf environment and I stumbled across a problem that I don't know how to solve.
The example I'm following is the i80_controller_example_main.c ( https://github.com/espressif/esp-idf/blob/master/examples/peripherals/lcd/i80 ...
by FrankNabas
Sun Jun 22, 2025 7:19 am
Forum: Hardware
Topic: I2C Master Bus multiple peripherals with same address
Replies: 6
Views: 527

Re: I2C Master Bus multiple peripherals with same address

Hi, thank you for your response, apologies on my delay.

I am aware that we have two I2C ports available, but I'm trying to use 3 (or more) devices.
However I was able to make it work using your suggestion to connect/disconnect the GPIO pins.
After implementing the solution I had to change my ...
by FrankNabas
Wed Jun 18, 2025 5:16 pm
Forum: Hardware
Topic: I2C Master Bus multiple peripherals with same address
Replies: 6
Views: 527

Re: I2C Master Bus multiple peripherals with same address

EDIT: I was able to read the 3 sensors by deleting/creating the master bus, I was using TX/RX as GPIO for one of the sensors and it was messing with the monitor.

I'm still curious if we can do it setting the pins with "i2c_master.h". Recreating the bus every read is not the most efficient thing.
by FrankNabas
Wed Jun 18, 2025 1:13 am
Forum: Hardware
Topic: I2C Master Bus multiple peripherals with same address
Replies: 6
Views: 527

I2C Master Bus multiple peripherals with same address

Greetings friends.

I am currently working on a project where I want to connect 3 environment sensors to the same board.
The peripheral is the AHT21 + ENS160 which consists of two sensors, the AHT21 temperature and relative humidity sensor and the ENS160 "air quality" sensor. Both sensors works via ...

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