Search found 127 matches

by prem111
Wed Aug 31, 2022 9:05 am
Forum: ESP32 boards
Topic: How boot mode in esp32 adafruit huzzah32
Replies: 1
Views: 19336

How boot mode in esp32 adafruit huzzah32

Hi, im have this evaluation boards:

https://learn.adafruit.com/adafruit-huz ... r/overview

Question is, how to go into boot mode to upload micropython firmware via esptool?

Thanks.
by prem111
Mon May 02, 2022 11:02 am
Forum: General Discussion and Questions
Topic: Data loss when sending to UART.
Replies: 6
Views: 2071

Re: Data loss when sending to UART.

It would help if you showed us a code sample that exhibits the problem, and also tell us what hardware you're using. I've used StreamWriter and StreamReader quite extensively, including concurrent reading and writing, and not seen this effect. If it can be demonstrated it's a bug that we should rep...
by prem111
Sun May 01, 2022 8:44 am
Forum: General Discussion and Questions
Topic: Data loss when sending to UART.
Replies: 6
Views: 2071

Re: Data loss when sending to UART.

Have you tried any other baud rate? For example, 9600? It doesn't help, and it even gets worse. I actually located the problem, unfortunately I do not know the solution. The problem with reading from UART is when I use uart.write at the same time (another task in uasyncio - I'm using StreamWriter a...
by prem111
Sat Apr 30, 2022 9:53 pm
Forum: General Discussion and Questions
Topic: uasyncio - block uart.write when reading.
Replies: 1
Views: 773

uasyncio - block uart.write when reading.

Hi. Is it possible to prevent writing to uart when data is read? in two separate threads (one for read, one for write)
by prem111
Sat Apr 30, 2022 3:58 pm
Forum: General Discussion and Questions
Topic: Data loss when sending to UART.
Replies: 6
Views: 2071

Re: Data loss when sending to UART.

tepalia02 wrote:
Sat Apr 30, 2022 1:34 pm
You can get some solutions from this old thread: viewtopic.php?t=6244
Changing the rxbuf does not help.
by prem111
Sat Apr 30, 2022 11:27 am
Forum: General Discussion and Questions
Topic: Data loss when sending to UART.
Replies: 6
Views: 2071

Data loss when sending to UART.

Hello, when quickly sending to uart .write (several at a time) some data is lost, how can I prevent this?

baudrate: 115200, rxbuf = 250, txbuf = 250

If it keeps 0.15ms interval it is OK. Reducing the baudrate to 9600 does not solve the problem.

micropython: 1.14 (esp32)

Thanks for help.
by prem111
Fri Apr 08, 2022 9:22 pm
Forum: General Discussion and Questions
Topic: ERROR: application overflows allocated space.
Replies: 0
Views: 8131

ERROR: application overflows allocated space.

Hi. When compiling 1.18 (esp-idf v4.2) I finally get: bootloader @0x001000 21600 ( 7072 remaining) partitions @0x008000 3072 ( 1024 remaining) application @0x010000 1594496 ( -21632 remaining) ERROR: application overflows allocated space of 1572864 bytes by 21632 bytes make: *** [all] Error 1 And af...
by prem111
Sat Dec 04, 2021 10:22 pm
Forum: ESP32 boards
Topic: BLE pair - different way ?
Replies: 1
Views: 1390

Re: BLE pair - different way ?

Actually, I have two problems. On the one hand, I can implement message encryption with a key and if the key is wrong, disconnect the client, but it does not solve the situation that someone will connect to ble, someone who does not have the key, and then the competent user will not be able to conne...
by prem111
Sat Nov 27, 2021 1:56 pm
Forum: ESP32 boards
Topic: BLE pair - different way ?
Replies: 1
Views: 1390

BLE pair - different way ?

Hi. I know there is no pair option for esp32 at the moment, but can it be solved in a different way? It's about security.
by prem111
Sat Oct 23, 2021 8:59 am
Forum: ESP32 boards
Topic: BLE pair on esp32.
Replies: 1
Views: 1071

Re: BLE pair on esp32.

Hi, Is there any news for this topic ?

Thanks for help !