Electronics > Microcontrollers

goto cheap microcontroller boards

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artag:
I used to use a lot of arduino nanos and micro pros for small, low-performance jobs with some i/o and USB.

But they've doubled in price due to brexit, vat changes and component shortages.

Do you have a new favourite for $3 or so ?

esepecesito:
Just a warning:
I bought some very cheap (for the performance) from china. The ST controllers build in seem to have some problem with the IIC, so just be careful with very cheap.

SiliconWizard:
Well, I don't know how many of those boards you buy each year, and if a couple dollars more will really make a difference. But that's just me.

So anyway, If you're looking for something decent (some will say good) in this price range, I will recommend considering the Raspberry Pi Pico. Interesting microcontroller, powerful enough and plenty of peripherals, good documentation. As the RPi foundation is a british organization, I would expect this to be the msot pain-free choice for you here regarding import and such.

JPortici:
5V+USB: PIC18F25K50 (really wish microchip released a newer 8bit pic with USB, the k50 is severely lacking in features)
cheap USB: i've recently started using the PIC24FJ GU family for that. I really wanted to migrate many projects to PIC32MM but the ADC was never fixed :( (missing codes in 12bit mode) this PIC24FJ is no dsPIC (lacks the ability to perform do loops and of course the DSP engine) but performs quite well and has a decent set of peripherals.
CAN+USB my goto is still the PIC32MX 530 family, can't beat the simplicity / price ratio.

thm_w:
Bluepill/blackpill is still reasonable from some sellers:

https://www.aliexpress.com/item/1005001621784672.html
https://www.aliexpress.com/item/4001113377360.html

$3 for STM32F103, $3 for STM32F401 and $6 for F411. The F103's are probably the clone ICs.



--- Quote from: JPortici on July 30, 2021, 08:18:58 pm ---5V+USB: PIC18F25K50 (really wish microchip released a newer 8bit pic with USB, the k50 is severely lacking in features)
cheap USB: i've recently started using the PIC24FJ GU family for that. I really wanted to migrate many projects to PIC32MM but the ADC was never fixed :( (missing codes in 12bit mode) this PIC24FJ is no dsPIC (lacks the ability to perform do loops and of course the DSP engine) but performs quite well and has a decent set of peripherals.
CAN+USB my goto is still the PIC32MX 530 family, can't beat the simplicity / price ratio.

--- End quote ---

Not a module though, and is it well supported in arduino?

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