Search found 574 matches

by OutoftheBOTS_
Sat Dec 02, 2017 10:48 am
Forum: ESP32 boards
Topic: difference in modules
Replies: 11
Views: 2065

Re: difference in modules

if I run "micropython.mem_info()" with the ESP8266 it tells me total of 36kb with 10 kb used and only 26kb available now this explains why the ESP8266 runs out of memory when doing somethings :)
by OutoftheBOTS_
Sat Dec 02, 2017 10:26 am
Forum: ESP32 boards
Topic: difference in modules
Replies: 11
Views: 2065

Re: difference in modules

Am I reading the specs right when the ESP8266 says the user heaps is only 36kb when connected to Wifi??

Does micro-python firmware also use up some of this 36kb leaving very little for my program to run??
by OutoftheBOTS_
Sat Dec 02, 2017 8:47 am
Forum: ESP32 boards
Topic: Wemos Lolin32 Pro + Lite
Replies: 2
Views: 1159

Re: Wemos Lolin32 Pro + Lite

If you notice the https://wiki.wemos.cc/products:lolin32:lolin32_pro now uses the Wrover module compared to the earlier models that use the Wroom module. If you read the specs it now has 4mb PSRAM compared to the older cheaper Wroom that had 512kb pSRAM.
by OutoftheBOTS_
Sat Dec 02, 2017 6:10 am
Forum: ESP32 boards
Topic: difference in modules
Replies: 11
Views: 2065

difference in modules

I have noticed they r now selling a Wrover module which seems to be a slight upgrade from the Wroom module. The difference seems to be in the Wroom just has 512kb of pSRAM and the Wrover has extended it to 4mb. Both modules have 8mb RTC RAM. The ESP8266 module that I am currently using does have pro...
by OutoftheBOTS_
Fri Dec 01, 2017 12:59 am
Forum: ESP8266 boards
Topic: PWM on ESP8266
Replies: 10
Views: 1991

Re: PWM on ESP8266

I did just google human hearing range and it seems that humans hear from 20hz to 28khz so 40khz is what I should be running the PWM at for motors to stop them humming or squealing. I suppose this would be just 1 more advantage of the PCA9685 being able to do PWM at that freq
by OutoftheBOTS_
Thu Nov 30, 2017 9:04 pm
Forum: ESP8266 boards
Topic: PWM on ESP8266
Replies: 10
Views: 1991

Re: PWM on ESP8266

Yes I use the same freq on all 4 pins but I change different duty cycle on different pins. [edit] 40hz not khz here's my setup code left_forward = PWM(Pin(4)) left_forward.freq(40) left_forward.duty(1023) My H-bridge works backwards in the fact u have to pull to low to active the motor. So when 1 wh...
by OutoftheBOTS_
Thu Nov 30, 2017 3:47 am
Forum: ESP8266 boards
Topic: over clocking
Replies: 7
Views: 895

Re: over clocking

Well changing my clock speed to 160Mhz seems to have pushed the ESP8266 from not quite being able to keep up with what I wanted it to do to being able to get the job done :)
by OutoftheBOTS_
Thu Nov 30, 2017 2:56 am
Forum: ESP8266 boards
Topic: over clocking
Replies: 7
Views: 895

Re: over clocking

by the way google and youtube let me down I searched "micropython esp8226 overclocking" and didn't find anything useful
by OutoftheBOTS_
Thu Nov 30, 2017 2:49 am
Forum: ESP8266 boards
Topic: over clocking
Replies: 7
Views: 895

Re: over clocking

OK thanks guys

I wasn't expecting it to be that easy

I will read away and have a play :)
by OutoftheBOTS_
Thu Nov 30, 2017 2:46 am
Forum: ESP8266 boards
Topic: PWM on ESP8266
Replies: 10
Views: 1991

Re: PWM on ESP8266

Well that's certainly fast enough updates even with multiply channels. The PCA9685 also is very small in size and cheap to buy too. It is definitely an option to think about. Thanks