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ESP32 microcontroller
Posted on 6/3/25 at 12:23 pm
Posted on 6/3/25 at 12:23 pm
Anyone used this?
I’m in the middle of building a portable waterproof device and came across this just wanting a Bluetooth transmitter for battery life and temperature.
Holy crap this thing looks powerful. I am already using an Atmel board for general device control and PWM because that’s what I’ve been using for 20 years, but this ESP32 thing already has bluetooth and WiFi and is 20x more powerful for just $4 instead of $3. Is it as easy to code as the arduino stuff? Is Copilot fluent with it? I’m feeling old and outdated now.
I’m in the middle of building a portable waterproof device and came across this just wanting a Bluetooth transmitter for battery life and temperature.
Holy crap this thing looks powerful. I am already using an Atmel board for general device control and PWM because that’s what I’ve been using for 20 years, but this ESP32 thing already has bluetooth and WiFi and is 20x more powerful for just $4 instead of $3. Is it as easy to code as the arduino stuff? Is Copilot fluent with it? I’m feeling old and outdated now.
2
Posted on 6/3/25 at 12:57 pm to Dallaswho
All the time. They are Arduino based.
We used one, well two really, to build a wireless model rocket launch controller.
We used one, well two really, to build a wireless model rocket launch controller.
Posted on 6/3/25 at 1:38 pm to Lonnie Utah
quote:
They are Arduino based
That answers that!
Don’t know why I’ve never seen these before. Atmel stuff always comes up first in search and that’s all I’ve ever used.
Posted on 6/3/25 at 1:47 pm to Dallaswho
Just make sure you download the esp32 library in the arduino ide. I like the D1 mini and the NodeMCU. The node MCU is bigger and has more GPIO pins. But it "only" runs on 3.3v logic. The D1 mini run on 5v logic, if it matters to your projects.
This post was edited on 6/3/25 at 1:50 pm
Posted on 6/3/25 at 2:04 pm to Dallaswho
There are many ways to program these depending on what firmware you load. As mentioned, you can use the arduino environment to create a binary file and flash it.
I use micropython frequently.
If you want ot see something really cool based on the esp32 see the
M5 Stack Card Computer
I use micropython frequently.
If you want ot see something really cool based on the esp32 see the
M5 Stack Card Computer
Posted on 6/3/25 at 2:32 pm to hob
That’s cool. I don’t know if I’m a hobbyist. I just like building things. Right now I’m building a +/- 15 lb thrust motor for a river run 2 tube that fits in the little storage compartment and shouldn’t stick out the bottom more than 3 inches or so. The ESP32 really changes what you can do compared to the little 328p though. My inputs are an f/r switch and a “go” button but temp is obviously going to at least be a consideration and having the data will be better than having to manually test the hell out of it.
Oh, also f/r switch doubles as an on/off relay disconnect so boot time may be an issue also as I’d have to cross off to get to reverse and I’m not about to go find a fancy switch or add more switches or button, maybe two buttons instead of a switch if that ends up being an issue.
Oh, also f/r switch doubles as an on/off relay disconnect so boot time may be an issue also as I’d have to cross off to get to reverse and I’m not about to go find a fancy switch or add more switches or button, maybe two buttons instead of a switch if that ends up being an issue.
This post was edited on 6/3/25 at 2:58 pm
Posted on 6/3/25 at 8:53 pm to Dallaswho
I have used esp8266s and esp32s for years. I have my pool automation system running on a esp32 dev board.
Posted on 6/3/25 at 9:41 pm to CarRamrod
Brilliant!
I would def do something like that but I was lucky enough to have the old trusty RS8 in the house I bought and it has a several open source control options plus the only part that will ever fail(relay driver) is socketed.
I don’t know why I just never explored anything between the Atmel and the RPi. Oops.
I would def do something like that but I was lucky enough to have the old trusty RS8 in the house I bought and it has a several open source control options plus the only part that will ever fail(relay driver) is socketed.
I don’t know why I just never explored anything between the Atmel and the RPi. Oops.
This post was edited on 6/3/25 at 9:43 pm
Posted on 6/4/25 at 10:28 am to Dallaswho
yea I run a home assistant instance. It isnt as robust as it used to be but it still controls a few things, including this system. When i moved, i moved to an older house where it seems the "in" thing was 3waying basically every switch. So that really messed up my smart switch plan. I know the treadlife smart switches are supposed to work 3way but i have 2, flashed both and that dont really work. I havent messed with them to trouble shoot as 3 young kids take all my free time.
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