MicroPython Forum (Archive)

not sure but my understanding is that it has to be a divider of the full spped of the clock, 240MHz for ESP32 and a divider of 160MHz for the ESP8266.

Speeds used on ESP8266 is 80Mhz and 160Mhz
Speeds used on ESP32 is 120MHz and 240Mhz

@pythoncoder I am wondering about your line of code bytes((x for x in a if x >= 0x20 and x < 127)) I understand what it does and have seen that sort of syntax before but don't understand why it works. I tried a couple of experiments to try to understand it and got some results that I don't understan...

The pins themselfves won't create enough current to drive thje stepper motor. You will have to have an external power source to all 4 inputs of the motor that is just switched by your pogrom. By far the easiest way to drive a stepper motor with a MCU is with a stepper motor driver. You connect the p...

You might need to check the antenna of the ESP32.

Does it have a PCB antenna?? or does it have the connector for an external antenna??

My ESP32 with PCB antenna works well over much larger distances than you quote and I do believe people are using ESP32 at up to 1km

Could you recomand a lowcost board with psram ? Recommend that's a hard one. There isn't a lot of boards with the psRAM but slowly more are popping up. They seem to want to charge more for these boards although the difference in price of the modules used to build the boards is nearly then same: Wro...

I had a Lolin32 pro but it didn't live very long before it stopped working and others found the same problem. They were only sold for a very short time before being pulled from production.

Choosing a ESP32 dev board with psRAM is an advantage when using MicroPython. The D23 doesn't have the psRAM

good day to all, OutoftheBOTS_ with the novelty that does not throw errors but only sends 00000000 zeros to the outport. @cyberlab I make small syntax error in the code and this is why it gets all zeros. I didn't put the [] around the data in the bytearray so it instead made an array the size of th...

@pythoncoder

I hear what your saying but struggling on getting my head around it.

If a python integer is infinite then how is it stored in memory?

Also am I right in assuming that python doesn't have data type like unsigned short or char and stores all of these as an integer??

Yes this might work better with open("Design.DST", "rb") as f: # open design file in binary. f.seek(511) # point to start of design data. lcd.move_to(0,1) lcd.putstr("Sending >") while True: if D_set.value()== False: #Request data from machine. time_out=0 byte = f.read(1)[0] #read the byte to proces...

maybe try something like this with open("Design.DST", "rb") as f: # open design file in binary. f.seek(511) # point to start of design data. byte = f.read(1) # buffer one byte only. lcd.move_to(0,1) lcd.putstr("Sending >") while byte != b"": # read until end of design file. if D_set.value()== False:...