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ESP32 - BLE and HTTPS request issue (urequests and ubluetooth library) #7038
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[-]BLE and HTTPS request issue (urequests and ubluetooth library)[/-][+]ESP32 - BLE and HTTPS request issue (urequests and ubluetooth library)[/+]on Mar 15, 2021 I'm having similar issues though it is with an MQTT over SSL and bluetooth resulting in ENOMEM even when gc.mem_free() reports 60KB memory free.
This is most likely due to the FreeRTOS heap running out of memory, not the MicroPython heap (ENOMEM means an OS memory error, a Python memory error is indicated by
MemoryErrorexception).The solution would be to use less memory for the MicroPython heap. A way to do this is provided in #6785, but that is not yet merged to master.
This is most likely due to the FreeRTOS heap running out of memory, not the MicroPython heap (ENOMEM means an OS memory error, a Python memory error is indicated by
MemoryErrorexception).The solution would be to use less memory for the MicroPython heap. A way to do this is provided in #6785, but that is not yet merged to master.
Thanks, it seems plausible as I've rewritten my code in C++ and not had any problems. Is it possible to see the amount free on the FreeRTOS heap?
This is most likely due to the FreeRTOS heap running out of memory, not the MicroPython heap (ENOMEM means an OS memory error, a Python memory error is indicated by
MemoryErrorexception).The solution would be to use less memory for the MicroPython heap. A way to do this is provided in #6785, but that is not yet merged to master.
If I get time in the next couple of days I'll build the PR you mentioned and see if that helps.
Is it possible to see the amount free on the FreeRTOS heap?
See the
esp32.idf_heap_info(...)function.MicroPython v1.15-64-g1e2f0d280-dirty
SSL connection response:
connection failed [Errno 12] ENOMEMimport esp32
esp32.idf_heap_info(esp32.HEAP_DATA)
[(240, 0, 0, 0)]Its not very informative.
Tried the (micropython) heap "minus memory trick" in micropython main.c but still got ENOMEM (espidf) at SSL connection.
The issue doesn't seem to be related to the memory. Validated the available memory space before and after the each step of the program execution.
Hi community!
As a first time person, I am new here and only a couple of months into working with ESP32. Therefore, any help from you will be appreciated.
I am working on a kind of BLE / WiFi gateway to detect some beacons and send them over the internet.
I only have a problem when I activate the BLE and try to send a request using the https protocol. (The problem does not occur with the http protocol)
Some clues:
-If I make an http request I can have the BLE active without any problem
-If I make an https request without active BLE, the requests work fine
-If I make an https request with BLE active, an OSError: [Errno 12] ENOMEM occurs. The problem appears when the urequests library invokes the ussl.wrapsocked function on line 60
-The micropython.mem_info(1) shows enough free space RAM memory
The development board is a generic 4MB ESP-WROOM-32.
Currently running firmware esp32-idf3-20200902-v1.13.bin, but I tried with:
-esp32-20210310-unstable-v1.14-84-g59a129f22.bin
-esp32-idf3-20180511-v1.9.4.bin
-esp32-idf3-20190529-v1.11.bin
-esp32-idf3-20191220-v1.12.bin
-esp32-idf3-20210202-v1.14.bin
-esp32-idf4-20210202-v1.14.bin
And also with my own build, but the same problem occurs.
Here the example code:
`
import network
import time
import urequests
import micropython
import webrepl
import gc
import ubluetooth
#GARBAGE COLLECTION
gc.collect()
gc.threshold(gc.mem_free() // 4 + gc.mem_alloc())
gc.enable()
#CONNECT TO WIFI
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
print('--WLAN INIT--')
wlan.connect("Psarocolius" , "Oropendola2021")
#WAIT WHILE CONECTION IS DONE
var = 0
while (not wlan.isconnected() and var<10):
var += 1
print("--WLAN CONNETION TRY ",var)
time.sleep(1)
if wlan.isconnected():
print('--WLAN SERVICE ON-- ', wlan.ifconfig())
#HTTPS URL TO POST REQUEST
url = 'https://www.google.com/'
#ACTIVE BLUETOOTH
ble = ubluetooth.BLE()
ble.active(True)
#DESACTIVATE BLUETOOTH
#time.sleep(1)
#ble.active(False)
#MEM INFO
gc.mem_free()
#micropython.mem_info(1)
#POST REQUEST
respon = urequests.post(url)
print('Status Code: ',respon.status_code)
#MEM INFO
#micropython.mem_info(1)
gc.mem_free()
`