It's almost as if Arduino is sherlocking Adafruit. They have offered ESP32 in a small standard-ish form for some time along with basic iot cloud logging services. Adafruit has also used and contributed heavily used libraries to Arduino.
What is "sherlocking"?
The Nano ESP32
111–120 of 142 posts
Re: The Nano ESP32
#112Looking at how much our school had to pay for Amstrad PC1512 computers, all the ongoing discussion about Nano ESP32 price feels like a joke. You really think that paying $20 for something more powerfull than a PC1512, which when considering inflation, would cost $1722 in todays money, is really being robbed?!? Really, what a wonderfull thing that for $20 I can get something more powerful than what I used to play Defe…
But considering competition wouldn't Microbit be a better fit both for kids and even for students? Price is 10 GBP but you get also accelerometer, compass, 5x5 led array, 2x push buttons, 1x touch button, microphone, speaker, bluetooth le. You can power it with USB, AA battery pack or CR2032. You can program in scratch, javascript, python and even c++. You can even change firmware to Zephyr RTOS if you want to do som…
> You can even change firmware to Zephyr RTOS if you want to do some low level stuff.
Zephyr (for me at least) felt quite bloated and abstracted away, probably because they need to support so many different SoCs. Albeit my experience is with the Nordic nRF downstream version of Zephyr.. The use of device-tree plus inconsistencies with the nordic api's certainly didn't help.
My experience with ESP-IDF + freeRTOS has been much more straight forward and felt much more nimble.
Re: The Nano ESP32
#113Looking at how much our school had to pay for Amstrad PC1512 computers, all the ongoing discussion about Nano ESP32 price feels like a joke. You really think that paying $20 for something more powerfull than a PC1512, which when considering inflation, would cost $1722 in todays money, is really being robbed?!? Really, what a wonderfull thing that for $20 I can get something more powerful than what I used to play Defe…
On that logic, I'd be happy to sell you an iPhone for triple the price.
Sure, that would be $60 I assume.
Re: The Nano ESP32
#114Looking at how much our school had to pay for Amstrad PC1512 computers, all the ongoing discussion about Nano ESP32 price feels like a joke. You really think that paying $20 for something more powerfull than a PC1512, which when considering inflation, would cost $1722 in todays money, is really being robbed?!? Really, what a wonderfull thing that for $20 I can get something more powerful than what I used to play Defe…
The ESP32 notably does not come with monitor, keyboard, disk drives, or mouse.
I would be quite surprised if it would be more than $1722.
Re: The Nano ESP32
#115Whats the point of Wifi if you need to power it with a USB cable? It should come with a buck-boost so we can run it with batteries! (at least for that price)
Re: The Nano ESP32
#116Whats the point of Wifi if you need to power it with a USB cable? It should come with a buck-boost so we can run it with batteries! (at least for that price)
I'm just guessing here, but maybe so that you can power it with just a common USB powerbank, and that way it's much more accessible to a wider audience?
Re: The Nano ESP32
#117Re: The Nano ESP32
#118Is it battery friendly and is it handling deep sleep properly? No? Then this is yet another board with a esp32 (but overpriced)
Can you elaborate on the deep sleep issues you’ve encountered?
Re: The Nano ESP32
#119Earlier quoted context omitted.
People who don't want to mess around with low level configuration. For me, using an Arduino is the equivalent of prototyping a software in Python instead of doing it in C. I haven't used any Expressif product, but is easy to find a problem or a bug while programming a MCU if you're new with it, and you don't know exactly what registers you need to edit to configure to set up the hardware correctly, or if there are ha…
This has not been my experience at all. Random cheapie ESP32 board bought off Alibaba performs/is exactly the same as expensive one with better marketing bought off Adafruit, Sparkfun, etc.
Yes, but "does it work" is a low standard.
- You don't get any documentation, whereas with something more official you will have a complete schematic (so you know which support components will be used), pinout, information about power supplies etc.
- You can't rely on being able to buy the same thing again. Even if you find something with the same pinout, small changes to the power supply or usb-serial converter can ruin your day.
- Shipping will probably take a while (or you're buying from a local re-seller, increasing the cost). Your company probably doesn't have a process for buying from aliexpress, but orders from digikey all the time.
- I've not had a problem with development boards, but plenty of cheap electronics in the same category are really badly designed; a random memorable example: https://www.aliexpress.com/item/1005001621800502.html . They have had their issues, but arduino stuff does tend to be well designed, and vendor development boards are usually reliable too.
- Stuff like the feather ecosystem can be genuinely helpful when prototyping if the cost isn't an issue.
I chance the cheap stuff for personal projects, but if work is paying I'd go for something more expensive every time (and probably wouldn't have a choice).
Re: The Nano ESP32
#120Earlier quoted context omitted.
Hi, just asking, I'm interested in embedded but as an outsider I fail to understand how would I go about making custom board? I googled a lot, but I still fail to grasp how do you make the board? How do you program the chip? How can you test your board? How can you prototype on an arduino, if you'll use different architecture STM vs Atmega, etc... I've done some arduino projects using VSCode and Platformio and I want…
> how would I go about make the board? First, make a schematic. This covers which things are electrically connected together so it's easier to see what connections there are. There's always "boilerplate" circuitry, so you'll want to start with an existing schematic. Eg https://stm32-base.org/assets/pdf/boards/original-schematic-... Then you design the board. You take the schematic, and then actually draw the actual w…
This was a great answer but the mashup of wildly varying abstraction levels made me chuckle a little. “Debugging? You’ll need printf()… and an oscilloscope.”