Search found 18 matches

by Huy_Tran_DF
Thu Feb 12, 2026 4:53 am
Forum: General Discussion
Topic: [ESP32-S3] Lost WiFi configuration in NVS after OTA due to Partition Table error?
Replies: 1
Views: 179

[ESP32-S3] Lost WiFi configuration in NVS after OTA due to Partition Table error?

Hi everyone, I'm having a strange problem with NVS on my ESP32-S3 (16MB Flash) running ESPHome (ESP-IDF) and I need advice from experts on Memory Mapping

Problem: I performed an OTA firmware update. The OTA process was successful, and the device booted to the correct new version. HOWEVER, all WiFi ...
by Huy_Tran_DF
Mon Dec 01, 2025 4:04 am
Forum: General Discussion
Topic: Error running Fleet Provisioning to connect MQTT to AWS
Replies: 1
Views: 3154

Error running Fleet Provisioning to connect MQTT to AWS

LOG:
I (6704) MAP_CORE: PROVISIONING: Certificate found. Thing Name: LED_Panel_Matrix_002
I (6704) MAP_CORE: PHASE 4: START MAIN OPERATION
I (6714) AWS_SERVICE: CONN: Preparing to connect with device certificate
I (6724) AWS_SERVICE: CONN: Device cert length: 1220 bytes
I (6724) AWS_SERVICE: CONN ...
by Huy_Tran_DF
Thu Oct 16, 2025 4:44 am
Forum: Hardware
Topic: Help me about BLE Antenna on custom ESP32C3 board
Replies: 1
Views: 1409

Re: Help me about BLE Antenna on custom ESP32C3 board

and Back Copper Layer
by Huy_Tran_DF
Thu Oct 16, 2025 3:51 am
Forum: Hardware
Topic: Help me about BLE Antenna on custom ESP32C3 board
Replies: 1
Views: 1409

Help me about BLE Antenna on custom ESP32C3 board

I'm working on making my own custom board using ESP32C3 but after I flash the code and the board starts running BLE I cant scan the board name on my phone on nRF connect app. I provide you LOG ​​monitor and schematic custom board and PCB. I can provide any information you need to help me with the ...
by Huy_Tran_DF
Tue Oct 07, 2025 2:01 am
Forum: Hardware
Topic: Evaluate the performance of the schematic
Replies: 3
Views: 1785

Re: Evaluate the performance of the schematic

Can you guide me how to calculate the impedance on the LNA or how to make a PCB that ensures the impedance is 50ohm? I don't have any documentation on it. Thanks !
by Huy_Tran_DF
Mon Oct 06, 2025 9:26 am
Forum: Hardware
Topic: Custom ESP32-C3 not detecting COM port
Replies: 20
Views: 5925

Re: Custom ESP32-C3 not detecting COM port

Hi !
I have redesigned PCB for my board. Can you check for me if it is ok?
Thanks you <3
by Huy_Tran_DF
Mon Oct 06, 2025 4:55 am
Forum: Hardware
Topic: Evaluate the performance of the schematic
Replies: 3
Views: 1785

Evaluate the performance of the schematic

I'm designing a circuit diagram using ESP32-C3. The purpose of the above diagram is:
1. Load firmware via USB or UART0
2. Get voltage from Battery via BAT1 and GND1 to supply 3v3 voltage to ESP32-C3
3. Battery charging function when supplying 5V voltage via USB
4. BLE antenna RF circuit
Do all the ...
by Huy_Tran_DF
Sat Oct 04, 2025 1:14 am
Forum: Hardware
Topic: Custom ESP32-C3 not detecting COM port
Replies: 20
Views: 5925

Re: Custom ESP32-C3 not detecting COM port

I don't have a VNA device
The footprint I used for the BLE antenna is: RF_Antenna:Texas_SWRA117D_2.4GHz_Right
I think the problem is that the L1 and C12 values ​​are not matched, is this correct?
by Huy_Tran_DF
Fri Oct 03, 2025 10:25 am
Forum: Hardware
Topic: Custom ESP32-C3 not detecting COM port
Replies: 20
Views: 5925

Re: Custom ESP32-C3 not detecting COM port

Hi Sir !
I fixed the above problem by wiring GPIO2 and GPIO8 to 3v3 connected with 10k resistor and now I have problem with antenna when ESP32C3 chip has started Bluetooth, started broadcasting BLE but I can't scan BLE with phone . I tested on another ESP32C3 module and can scan BLE, this proves my ...
by Huy_Tran_DF
Thu Oct 02, 2025 1:06 pm
Forum: Hardware
Topic: Custom ESP32-C3 not detecting COM port
Replies: 20
Views: 5925

Re: Custom ESP32-C3 not detecting COM port

My schematic is missing VDD_SPI which is not being supplied with 3v3. will this have any major impact on the firmware flashing process resulting in the error I am getting?

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