00:00Chat GPT giant super powerful AI tiny little microcontroller

00:05How can I bring this down to here? Is it even possible? Well, I'm working on a project right now and I want to give you a sneak peek of what I'm doing

00:16Okay, here's the deal

00:18I've got an ESP32 here

00:21It is a Wi-Fi enabled microcontroller, a development board that I can program with the Arduino IDE

00:29So, I can connect to the internet with this microcontroller development board

00:33And these are like, I don't know, hardly even 10 bucks

00:34So, here's the plan

00:34I take a keyboard, you know, like just an old school keyboard

00:39I connect it to my ESP32 so that when I type, this records what the key presses are, and then it displays what I type in on a little OLED display

00:50Then, when I press enter, my input gets turned into a string and sent up to the cloud via the internet

00:56cuz again these are Wi-Fi connected

00:58Then I send that input up to the open AI API

01:04It's super powerful AI does its thing, generates a response and sends it back to my board and I display that response on the OLED

01:13So nothing's connected to a computer here

01:16All the work is being done with the microcontroller over Wi-Fi

01:20So let me show you what I got

01:20So here is the old school keyboard

01:23This is like uh I you know some IBM old school e keyboard

01:31It was it's a PS2 keyboard

01:33That's important because I had to use the PS2 library and uh whoever had this man they were a smoker

01:37There's like all types of burn marks over the Anyway

01:40Okay

01:40So then I've got this and I've got it connected to a uh USB cable adapter

01:50All right

01:50And it's connected to a breadboard

01:51And then this right here is my ESP32

01:55And I've got a let's see I can get there's the battery right there

01:57And then here's the OLED

01:59So what I'm going to do is I'm going to type on this keyboard

02:02You can see it's not it's just being powered right now with the battery

02:04So there's not it's not connected to the computer

02:06It is connected to uh to Wi-Fi though

02:07All right

02:09So I'll say what is Arduino? And now it's making the call

02:16And then you can see it responds just like that

02:22I could ask it something like, I don't know, what is an apple? Now, still working again on getting the text to display appropriately

02:31So, that's a work in progress, but [Music] okay

02:41Well, I got to say I think this is pretty fun

02:43So, I'm just going to talk real quick through this whole process one more time

02:47So the first step is you go to OpenAI and you sign up for a developer account

02:51They give them they give give developer accounts to anyway

02:55They gave one to me so they'll probably let you have one too

02:56It doesn't cost anything

02:57And then you get a key that you use to authenticate with the chat GPT API

03:03Actually I should say with the open AI API and API stands for application programming interface

03:08An API is what allows different software online to allow third parties to like access their data and their information and their tools, right? So, OpenAI has all these different models like they've got chat GPT, they've got these text completion models, they've got all these different like they've got image classifier models, all this stuff

03:30Anyway, and this one, this project right now is using a text completion model

03:35And so each one of those different models has a different API that you can go to and call and get responses from

03:42So that's really all you need to do on the OpenAI side

03:43And then roughly what I did in this project

03:46And I can kind of talk you through the libraries a little bit just to show you what I'm doing here

03:50So I'm using the Wi-Fi library and the HTTP client and Wi-Fi client secure libraries for the ESP32

03:55So that's allowing me to connect to the internet uh securely and that's also allowing me to make an HTTPS request up to the API

04:07So those were the libraries I used for that

04:08Then I used Arduino JSON library

04:12So the response you get back from the web is going to be in a JSON format and the Arduino JSON library makes it easy to um get that data out to parse out that data

04:23And the JSON library is pretty cool

04:25Um, Programming Electronics Academy is actually a sponsor

04:31So, then once you have the data, then you kind of want to display it on the screen

04:34And then I'm using the uh universal 8bit graphics library version two for working on the OLED that it works for monochromatic OLED LEDs, basically like one color LEDs

04:45And then finally, in order to get the keyboard input, I am using the PS2 key advanced library that reads the input codes from a PS2 keyboard

04:55As you can imagine, there's a ton of details in this

04:58If this sounds foreign to you or something like, man, what is going on? I assure you it's not as complicated as it looks

05:07If you're interested in learning about this Arduino stuff, the next video you should watch is this one right here

05:13It's the Arduino in 90 minutes video

05:16It's going to introduce you to all of this cool Arduino stuff

05:17This whole ecosystem where just regular people can start tinkering with cool electronic stuff

05:24It's this video right here

05:24It's fantastic for getting you up and running with Arduino.