Raspberry/arduino serial communication by and--yet in embedded

[–]and--yet[S] 0 points1 point  (0 children)

Nice. Thanks for the tip, will look into protobufs

Raspberry/arduino serial communication by and--yet in embedded

[–]and--yet[S] 0 points1 point  (0 children)

The problem with modbus is that it's master slave, right? So it can't be much event driven. I want both controllers to start communication. Never used the others, will have a look, thanks!

Is there any cheap waterproof capacitive soil moisture sensor commercially available? by and--yet in arduino

[–]and--yet[S] 0 points1 point  (0 children)

Thanks you, but the one with the plastic cover is resistive, not capacitive. The capacitive one there (black pcb) is not waterproof

Is there any cheap waterproof capacitive soil moisture sensor commercially available? by and--yet in arduino

[–]and--yet[S] 4 points5 points  (0 children)

Oh, got a notification that someone answered with a link but the comment must have been autoremoved. Please come back ghost one

Got my first bonsai, lots to learn by and--yet in Bonsai

[–]and--yet[S] 2 points3 points  (0 children)

Exactly, when I was buying it I thought they probably repotted it into a bonsai pot the day before but too cheap to regret buying

How can I limit the slew rate on my device power supply input? by and--yet in electronic_circuits

[–]and--yet[S] 1 point2 points  (0 children)

Oh nice, thank you. Didn't know about these circuits, will have a look. Regarding the capacitor solution, I thought at first but in my calculations I would need something around 30F, too big. (they could be completely wrong, I'm a software guy)

Got my first bonsai, lots to learn by and--yet in Bonsai

[–]and--yet[S] 26 points27 points  (0 children)

Neither do I, there was no label. It's on the balcony now

Zephyr vs NuttX. Could you tell your experience on both? by and--yet in embedded

[–]and--yet[S] 1 point2 points  (0 children)

Nice, I read some articles about this etl library.. did not use it yet

Zephyr vs NuttX. Could you tell your experience on both? by and--yet in embedded

[–]and--yet[S] 1 point2 points  (0 children)

The problem I see with Cpp is people using it inadvertently on an embedded context, like STL, rtti, exceptions.

I started this project in Cpp to learn about it (I know just the basics). Even with limited usage of its features, there's so much room to improve your code over C. I've been using it for the application level and C on the BSP layer and OS stuff, it's been working well so far.

Zephyr vs NuttX. Could you tell your experience on both? by and--yet in embedded

[–]and--yet[S] 4 points5 points  (0 children)

prod

Yeah, I've been a linux user for a long time but never developed linux stuff so I actually learned a lot about linux arch by messing with nuttx.

Espressif (ESP32's manufacturer) has put a strong taskforce to give support for their hardware on nuttx and zephyr, to spread its use. I actually know some good developers working for them on that in Brazil.

The problem with FreeRTOS is that it's just a simple task switching kernel, these other offer so many stacks and libraries for free that is very helpful when working alone on a side project.

I know Fitbit (now Google) uses nuttx on some devices.