Search found 21 matches

by mitchk
Tue Mar 31, 2026 3:28 am
Forum: Hardware
Topic: ESP8684-DevKitM-1-H4X RF failure
Replies: 3
Views: 139

Re: ESP8684-DevKitM-1-H4X RF failure

I finally found the issue with my ESP8684 modules. It was the main XTAL frequency. It was 40MHz by default in menuconfig but these modules need 26MHz. With the wrong XTAL frequency all of the code still seemed to be running normally only the RF functions were failing.
by mitchk
Sat Feb 21, 2026 3:42 am
Forum: Hardware
Topic: ESP8684-DevKitM-1-H4X RF failure
Replies: 3
Views: 139

Re: ESP8684-DevKitM-1-H4X RF failure

Thanks for the idea to check but I don't think it is a power issue. To be sure I tried powering the ESP8486 dev kit with a bench power supply. I get the same RF failure. I'm currently using the STATION example from the ESP-IDF as my test code. I then ran the same STATION example on a custom ESP32-C3 ...
by mitchk
Wed Feb 18, 2026 4:15 pm
Forum: Hardware
Topic: ESP8684-DevKitM-1-H4X RF failure
Replies: 3
Views: 139

ESP8684-DevKitM-1-H4X RF failure

I recently purchased an ESP8684-DevKitM-1-H4X from the "Espressif Store" on Amazon.com (USA). The board was functional in that I could upload and run code (i.e. hello world works just fine) but any code using the RF front end would fail. Anything I have tried using Wi-Fi or BLE doesn't work. I don't ...
by mitchk
Sat Jan 18, 2025 9:05 pm
Forum: ESP-IDF
Topic: Enabling Bluetooth in Menuconfig breaks code
Replies: 2
Views: 1431

Re: Enabling Bluetooth in Menuconfig breaks code

Thanks. I had tried that earlier and assumed it wasn't doing anything if the Bluetooth controller wasn't active as I was still seeing a failure connecting to Firebase. However, when I check the free heap before and after releasing the BT memory there is a small but observable difference.

I (1457 ...
by mitchk
Sat Jan 18, 2025 3:45 pm
Forum: ESP-IDF
Topic: Enabling Bluetooth in Menuconfig breaks code
Replies: 2
Views: 1431

Enabling Bluetooth in Menuconfig breaks code

I am working on a project that I was hoping to use an ESP32-C2 part for. I have some initial code that is connecting to Firebase and working as expected. When I enable NimBLE in Menuconfig (BLE will be used for provisioning) the code fails apparently due to a memory allocation failure due to ...
by mitchk
Fri Jan 26, 2024 2:04 am
Forum: Hardware
Topic: ESP32-WROOM-32D/E deep sleep current consumption?
Replies: 2
Views: 1845

Re: ESP32-WROOM-32D/E deep sleep current consumption?

To try and find this answer myself I populated one of my PCBs with just the ESP-WROOM-32 module and the minimal components around it and then ran the "deep_sleep" example code from IDF 5.1.1. With the module in the deep sleep state the PCBA was consuming 44uA. For comparison when the module is held ...
by mitchk
Fri Jan 19, 2024 3:04 am
Forum: Hardware
Topic: ESP32-WROOM-32D/E deep sleep current consumption?
Replies: 2
Views: 1845

ESP32-WROOM-32D/E deep sleep current consumption?

What is the expected Deep Sleep current consumption of the ESP32-WROOM-32D (or E) module? In the datasheet I can only find reference to the ESP32 chip that its sleep current can be as low as 5uA. I cannot find the same information for the module. Also if the numbers are different between the D and E ...
by mitchk
Fri May 07, 2021 8:31 pm
Forum: ESP-IDF
Topic: Problem with ESP-Jumpstart Remote Control (Cloud) Example
Replies: 0
Views: 2358

Problem with ESP-Jumpstart Remote Control (Cloud) Example

I am working through the ESP-Jumpstart examples and I've run into a problem at the Remote Control example. When I try to use the cURL command to read the device state or change the state I always get a response like this (this is from a read attempt):

% Total % Received % Xferd Average Speed Time ...
by mitchk
Sat Jun 20, 2020 12:36 am
Forum: Hardware
Topic: LyraT speaker connectors
Replies: 2
Views: 4454

Re: LyraT speaker connectors

This fits the Lyra-T v4.3 board speaker connectors.

https://www.digikey.com/product-detail/ ... -ND/608607
by mitchk
Sat May 23, 2020 12:52 pm
Forum: Hardware
Topic: ESP-LyraT-Mini V1.1 documentation?
Replies: 0
Views: 2925

ESP-LyraT-Mini V1.1 documentation?

Is there documentation and a schematic available for the ESP-LyraT-Mini V1.1? I purchased the Mini V1.2 and I would like to use it to run examples from both ESP-ADF and ESP-Skainet but currently in both those frameworks only the Mini V1.1 is supported. I built the ESP-Skainet Get Started example and ...

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