Hello.
I just discovered the awesome senserbender module. The price seem reasonable for something that small and flexible. However, when I went to checkout the price increases up to 40$ with shipping to Spain. This makes it very inconvenient for small projects that I wanted to be budget friendly, specially because my skills will not allow me to build something very impressive.
So what I want to get is some advise about where to buy it with a reasonable shipping to Spain. I am not able to solder smd yet, so it must be assembled.

Thanks!

Can you provide more details on wiring and more close ups of the circuit and the sensor itself?
Thanks

Hello.
I want to build a battery powered presence sensor. It should have a PIR sensor (not sure if mandatory or just recommended) and a distance sensor (that I have a bunch of). It is exactly like this project:
https://forum.mysensors.org/topic/3629/robotic-lawn-mower-supervisor?_=1634468560128

However that project doesn't have much details and I am a noob (and I always be because I have no time with all my other hobbies).
Ideally I want to use the same noob board for some other sensors too because I think buyin 10 or 20 is the most budget friendly solution. Being as small as possible is a nice have but I'm willing to sacrifice it a bit for convenience. Also the more budget friendly the better 😛

Which noob PCB is more recommended for my situation? I'll buy them through openhardware to support this awesome project.

My new gateway with leds for state and the only node I have: A wireless arcade button controller

Wow, that is very nice @mfalkvidd
So I can override the indication function and it will be called on the same events that are now handled automatically right? So if I define this function I have to handle all the enum options right?
Thanks

@BearWithBeard thanks for your response.
Yesterday it was way less common to see this blinking, probably due to my networking problems and probably longer disconnected periods.

It is not annoying me at all, it is just that I didn't expected the RX and TX leds to blink with communication that is not about the radio and the nodes, but it probably makes sense.

Thanks

Hello,
Recently I updated my gateway to add 3 status leds to it. They are working great and they allowed me to notice a singular pattern. Yesterday was the first day with the three leds and my hassio wasn't working very well. From time to time, I was seeing the green led turning on. Normal, it is looking for devices, I told myself. But today that I restarted my hassio after fixing some networking problems, I am noticing a much more frequent led blinking and not only the send one, but also the receiving one. This is what I see on the logs:

2020-07-29 09:57:15 DEBUG (MainThread) [mysensors] Sending 0;255;3;0;2;
2020-07-29 09:57:15 DEBUG (MainThread) [mysensors] Receiving 0;255;3;0;2;2.3.1
2020-07-29 09:57:25 DEBUG (MainThread) [mysensors] Sending 0;255;3;0;2;
2020-07-29 09:57:25 DEBUG (MainThread) [mysensors] Receiving 0;255;3;0;2;2.3.1
2020-07-29 09:57:35 DEBUG (MainThread) [mysensors] Sending 0;255;3;0;2;
2020-07-29 09:57:35 DEBUG (MainThread) [mysensors] Receiving 0;255;3;0;2;2.3.1

I only have two nodes, and the other node is battery powered and turned off, so, who is my gateway talking to? Is it sending packets to itself?

@monte Where do you buy that e-ink displays? they look awesome

@tbowmo said in What did you build today (Pictures) ?:

atmega32u4

Next step: build an entire keyboard and flash QMK to it!
Nice project, I thought about something similar but to operate a fan, which is way harder than communicating with a computer, I should have started with that.
Very little nice sensor that one...

I also want to highlight one problem of the arduino IDE, and that is that it is very local to your machine. It makes hard to share your projects with others or even to migrate to a different machine of yours. This may not be a problem for casual editions, but as soon as you have build 5 or 10 things this starts to be a concern. People should be able to store their projects whenever they want and not be tied to specific paths/configs on a particular machine.

At the end I was able to use D0,D1 and D4 for status leds. Something interesting is that I can use the actual DN nomenclature because there is a header file that maps them properly. The weird thing is that such file is arduino.h (I'm using platformio) so I'm not sure if it is specific for the D1 mini or if D1 is compatible with arduino pinout.
I used a 220 ohm resistor and, dam it, the leds are bright as hell, haha.
Everything is working now, it's very pleasant to see the leds blink when I turn on other node. Thanks to all the people on this forum for the great support.

@BearWithBeard Thank you very much!
I'll do that

Wow, thank you everyone! I have all the leds sink to 5v (long leg) and I was going to put a resistor on the other leg to connect them to the gpio because that is what it says on the docs, but docs are for arduino. I'm very happy that it's the same for the D1 mini. When I define the pins on the sketch should I use the same label (without the D) or should I use a different value?

By the way, what can be the i2c used on the gateway?
OH, and which resistor should I use? Does it need to be of an specific value or is it enough if it is within certain range?

Hello,
Sorry if this has been answered before, but I could not find any answer to this particular thing.
I have a wifi gateway built using a d1 mini. It is working great, but I want to have some feedback about what is going on, so I decided to add some status leds. I already wired all the leds to 5v, and when I was about to check wich other pins to use I realized that the information is for an arduino gateway, so, what are the pins that ai can use on the D1 mini for this?

I was just curious if this would have better performance in terms of battery saving.
I saw some circuits doing this with button presses and mossfets.
I suppose that, for most PIR applications the delay defeats the purpose.
Thanks for all your answers!

Thanks for your answer. Is the boot up time the only limitation? There are situations where it matters, but some others don't.

Here is a review of this
https://youtu.be/55tgEMTumGo
Not sure why, it YouTube has started suggesting this kind of videos after I read this post

@trs-80 isn't there an arduino nano rf already? I saw some of those on aliexpress

Hello.
Most PIR sensors provide 5 volts on their outout pin when they detect motion. I was guessing if I can use that pin to power an arduino or any other micro controller and have an auto power on/off mechanism that way.
I can't find any example doing that, so I guess there must be something wrong on that idea. Why?

Regards

@yveaux thanks for that piece of information!!
This was driving me crazy. I know this is an old thread, but this is still a problem today.
I think this should be added to the documentation and probably add one example with this setup properly working.