ESP32 - Minimalistic Messenger 

I love these 2-way comms thing. When I started a project a year or more ago, I learned how to do this. But I wanted to communicate between 4 to 10 ESP32 boards. It became very involved, even using ESPNow. But then I came across a 'broadcast" protocol, using just 1 MAC address. I played with that, where the head unit and 3 (test) "remote" units all used the same MAC to communicate. This is for our greenhouses to monitor temperature, humidity, status of heater, status of exhaust fans, etc. What I ended up doing is the units in the greenhouses would be in "listen" mode, all on that one MAC. The head unit would then pole each unit by its "channel" number. When it sent a request, say to channel 2, the head unit then flips into listen mode and the "channel 2" unit hears that it was called, prepares the packet of data and sends to the head unit. This repeats for each unit. I know that there's probably a better way to do this, but it just works. But these remote units use Nextion displays to set things up. I didn't use the little color displays like in this video, because at that time, I just couldn't find a good library (or I just didn't know how to configure things correct so things work smoothly as in this video). So now I see that there are good libraries that can be used, so I think that this summer, I'm going rework this project and have the remotes use these cheaper displays. Fun stuff. So thanks for this, Vol.

Volos projects never disappoints.

Your projects always have such a beautiful clean interface design 💯👍

Regarding LoRa, there is a difference between LoRa(the RF protocol that the hardware implements), and LoRaWAN, which is a network protocol implemented on top of LoRa, and handles things like encryption, sending packets to the internet via a gateway, etc. - So to keep it simple, look for examples of **just** LoRa, without LoRaWAN!

So close to a LoRa project!! Thank you for giving this a try so far!

You always do amazing projects! And your displays are always so cleanly laid out. Look forward to your next, (incredible) project! 👍👍👍

There so cool I love tiny devices

Very cool! Thanks for the video.

Great Project

Great stuff, beautiful visual. In addition to different colors, I would I would right align own messages and left-align the counterpart ones.

thx for reinventing pagers

Awesome stuff

How are you so relentlessly creative? You seem to be able to generate an endless series of amazing ideas, it's incredible.

Another great project! :))

This is so good. Amazing project.

running a server on the interwebs and having the two esp32 connected to wifi talk via the server that way one could be anywhere in the world and via hotspot communicate

Amazing work

Amazing project thanks for sharing, I like this development and have only just seen the Chanel here and now following

Another great project! Nex week I'll be very close to your town

Nice. An Alert upon reception would be nice!

Volo... ALWAYS feel shock&awe with every new contraption you create ... AND *old* with too Big Fingers and too Bad Eyes 😂 YOU CAN MAKE WORK ANYTHING 👍😘

I would love to see a practical communicator with lora, a blackberry keyboard and a big outside readable display with your great UI design. Maybe one of those low power sharp screens?

Awesome!

LilyGo T-Deck would be perfect for that!

Some James Bond stuff right there

Interesting. I've been playing around with some very small ESP32-C3 SuperMini boards and ESP-NOW. They work great, but I wasn't sure exactly how I'd use them. This looks like a nice little project I can adapt for purpose. I'm thinking an RGB LED and a buzzer, that fire when a call is coming through, might complete the project. Also, a USB charger would be nice.

I have a program to send and receive message via ESPNOW with esp32c3 but the typing part is done with the esp connected to the phone and typing it in a serial monitor. I found it useful where there is no network. Also there is possibility to input any data via serial. And get it on another device.

Wow❤

nice

Nice video, God bless.

Если что-то на эту тему и придумывать, то наиболее перспективный концепт был продемонстрирован в фильме ХИЩНИК с Арнольдом Шварценеггером. Там у хищника все это было расположено на правой руке под защитной крышкой. Это нечто напоминающее терминал компьютера. Вполне можно сейчас и повторить на современной элементной базе.

Вы уже пробовали работу cardputer вместе с модулем lora от m5stack?

This is very nice but a LCD with touch 3,5“ or 4,0“ will help a lot. Is the code useful for a greater display. there are many useful displays with ESP32 and ESP32-s3. did you like projects with greater displays? Did you know WT32-SC01 Plus?

Hi, work with meshtastic ?

I ordered 5 of the PCB's to see what happens. I'm making a larger RC system and do some initial tests with a pile of stuff and coding.

👍👍👍

I think it would be easier to use with an old school 12-key phone pad and predictive text.

Your imagination knows no bounds! Amazing project! Do you know about Meshtastic? Similar, but uses ESP32 and LoRa and can communicate over great distances.

Can the same program be used with the M5Stack Cardputer?

Call them Message Mates. I think you could make a lot of money with them.

lorawam + esp32 👍 please do it

oooo

how can I connect with you? do you have email?