Please see the new forum at
https://forum.micropython.org/
Thanks. Please state the firmware version.bmarkus wrote:On a LoPy v1.0 board with stock firmwareCode: Select all
>>> import gc >>> gc.collect() >>> gc.mem_free() 191088 >>>
kfricke wrote:The LoPy firmware does only print a commit hash suffix but no MicroPython release number. So only Pycom knows which MicroPython release we do use there.
Code: Select all
import os
os.uname()Code: Select all
>>> import os
>>> os.uname()
(sysname='LoPy', nodename='LoPy', release='0.9.0.b2', version='f5444c7 on 2016-10-12', machine='LoPy with ESP32')
Code: Select all
>>> import gc
>>> gc.collect()
>>> gc.mem_free()
191216
Answer from here :bmarkus wrote:Updated LoPy to 0.9.1.b1 firmware released today. Now free RAM is only 71152 bytes Also, every execution of gc.mem_free() is decresing it by 64 bytes
So the free RAM on LoPy (and possibly WiPy 2.0) is a moving target. Hoping to see about 150 KB of free RAM.71,152 is the expected value for now. We will increase it in future releases, and we should end-up with something around 150K. The old value of 191,088 was wrong and that was causing the gc crashes.
Calling gc.mem_free() on the REPL will decrease the value as it creates new objects. As soon as you call gc.collect() the free memory amount will increase again.
Cheers,
Daniel
Code: Select all
>>> __import__('gc').mem_free()
233920Code: Select all
>>> del machine
>>> del pins
>>> del pyb
>>> del led
>>> del af
>>> __import__('gc').collect()
>>> __import__('gc').mem_free()
234496
Thanks. Hope to see it in v1.8.6. Constrained RAM is one of the limitations of ESP8266, so this increase will be very useful.Roberthh wrote:Today's commit for ESP8266 increased the heap and this the available RAM by 8k.