ESP8266 - transfer some bytes PC<>PIC over wifi

[amgen]

Amgen, what exactly is a "bridge"? Is it what I actually want to achieve = send (small amount of) data, both ways, between a PC and a PIC over Wifi?

Yes, instead of bridge, could use 'connection'......... what program or app would you use on the PC to receive and send data?

[flotulopex]

what program or app would you use on the PC to receive and send data?

Don't know yet.

I think I'm going to use some kind of mobile Terminal app or, if possible, a web browser or even make one by myself with MIT App Inventor which I'm already on my way but using Bluetooth for now which I'll need to change to wifi, obviously.

Attachment 9528

I've no idea what will be the simplest and fastest to achieve...

It's really just about to send some data to a PIC, have the PIC acknowledging and storing if datat is okay. Voilà.

[flotulopex]

...can't edit my previous post.... so here is the picture ment to appear:

[amgen]

I found that web browsers block from trying to access your internal network like putting 192.168.X.X into the address bar ...... But, old Hyper Terminal will connect and do send/receive except it intermingles the send/receive characters.
When you get to start testing...... my PIC18f2525 sends serial out every second (helps when connecting and checking functioning)

[HenrikOlsson]

Quick note about something I re-learned yesterday.
It started when I tried to update the firmware of my ESP-01 module, it only has 4Mbit of FLASH so it did not work. Dug out an ESP-12F module and loaded 2.2.1.0 onto it. Flashing it worked fine but I could not get it to "work". Then I remembered...

Somewhere in the firmware history the default UART-pins for AT command have changed from GPIO.0/3 to GPIO.13/15.

GPIO.0/3 are still used to PROGRAM the thing but AT commands are now accepted on GPIO.13/15.

On version 2.2.1.0 CWLAP works in CWMODE=1 and CWMODE=3 without first connecting to an existing network. It also has AT commands for managing MQTT (don't know when those commands were added).

I have a command reference dated 2020 which includes the MQQT commands but no longer contains the command CWMODE. Instead it references CWMODE_DEF and CWMODE_CUR however neither of these work. Online documentation here is back to just CWMODE.

So yeah, it's a bit of a mess....

[flotulopex]

There's quite a jungle of firmwares available for these ESP modules.

Which one should I use? Which one will allow me to "simply" send and receive a few bytes back an forth between a PC and a PIC?

If I already have a project doing the same (transferring bytes) but using Bluetooth HC-05 modules, will I be able to replace these Bt modules by the Wifi ones and it will work like 1:1 or is it not possible?

[amgen]

There's quite a jungle of firmwares available for these ESP modules.

Which one should I use? Which one will allow me to "simply" send and receive a few bytes back and forth between a PC and a PIC?

That is what I found about these 8266's. Plus I wanted to just deal with the serial/data/programming with the PIC and not have to add all the CWxxx's in the communications back and forth. So, the Jeelabs thing did that...... Programming these 8266 is about the same with different methods, I used the Espressif tool to put 4 files at the specified locations on the 8266. The Jeelabs page has files for the 8266-1 and -12. Sometimes had to flash 2 times to get the program to take..... after programmed, you open the onboard web page to make all the network settings.... then everytime it is powered up, it automatically hooks to the network you had set it for and waits for a connection and then automatically sends and receives serial stuff. Plus, you can access your PIC from local or anywhere in the world with internet. I was looking for others ideas for the routines/programs on the PIC plus apps or program on PC for easy simple comms for simple micro-controllers.