Search found 8 matches

by marius_sch_priv
Wed Aug 05, 2020 7:31 am
Forum: ESP IoT Solution
Topic: ESP-Azure: tlsio_esp_tls_send_async without a prior successful open error
Replies: 1
Views: 4851

Re: ESP-Azure: tlsio_esp_tls_send_async without a prior successful open error

Hi,
did you solve this problem?
I got the same problem and don't know what to do :(
by marius_sch_priv
Fri Jul 17, 2020 6:52 am
Forum: ESP-IDF
Topic: Error -76 from MbedTLS
Replies: 0
Views: 2371

Error -76 from MbedTLS

Hi everyone. Hopefully someone of you can help me in my current project. We are using ESP-IDF on the current stable version 4.0.1 with ESP-AZURE to send telemetry data to the Azure IoT Hub. I have my main loop which uses the light sleep mode and configured the wifi with power safe mode with the foll...
by marius_sch_priv
Fri Jul 03, 2020 7:02 am
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 10
Views: 16593

Re: ESP32 multiple SPI Max31865

But I've already registered more than 3 devices. Also its working on Arduino on the same esp32.
by marius_sch_priv
Fri Jul 03, 2020 5:38 am
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 10
Views: 16593

Re: ESP32 multiple SPI Max31865

Im registering more than one device to the bus.
When I am adding the 7th device, im getting the following error:

Error adding SPI device: ESP_ERR_NO_MEM

So my question is, is there a way to reduce the memory which is getting allocated by the devices?
Do I have any chance?
by marius_sch_priv
Thu Jul 02, 2020 6:43 am
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 10
Views: 16593

Re: ESP32 multiple SPI Max31865

So the Author of the library helped me out on that. Now its working on many devices but it always returns zero as resistance value. Is there a way to find out which PINS as MISO, MOSI and CLK I need to use? Do i need to use VSPI or HSPI? The problem is, that I did not connect the devices to the ESP,...
by marius_sch_priv
Wed Jul 01, 2020 12:07 pm
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 10
Views: 16593

Re: ESP32 multiple SPI Max31865

Thanks for your fast response! My understanding of SPI isnt that big. Is there an example for the ESP32 on ESP-IDF which initiates more than one SPI Device? I do not need this library if I can easily poll the Resistance values, if easier. I nearly up to everything what helps to get this done. Could ...
by marius_sch_priv
Wed Jul 01, 2020 7:46 am
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 10
Views: 16593

ESP32 multiple SPI Max31865

Hey together, I really hope you can help me. I am developing software for an ESP32 DevKit V1. There are connected several Max31865 (exactly 8) to read data from the temperature sensor attached. I've to poll those values in a given time. So I've tried to use the following library: https://github.com/...
by marius_sch_priv
Wed Jul 01, 2020 7:00 am
Forum: Hardware
Topic: ESP32 multiple SPI Max31865
Replies: 0
Views: 2208

ESP32 multiple SPI Max31865

Hey together, I really hope you can help me. I am developing software for an ESP32 DevKit V1. There are connected several Max31865 (exactly 8) to read data from the temperature sensor attached. I've to poll those values in a given time. So I've tried to use the following library: https://github.com/...