What did you build today (Pictures) ?
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@monte
Well now Kalina already uses 2 layer PCB, so to improve current 2-layer PCB with ground planes are strongly advised.
Yes 4 layer is naturally much better, but is it needed for a "commodity" device? I think not, and it will increase PCB cost...If you don't have a GND and power planes, you will most likely have power spikes when an IC needs current, this will introduce a magnetic field that will "disturb" especially sensitive analogue tracks and clock signals
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@bjacobse but it actually seems that he HAS a ground plane on one side of PCB, if you look closer at the third photo ;)
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My actual project is a doorbell sensor with additional temperature and humidity sensors. Tried different ways to detect the ring:
- hall sensor (failed)
- microphone (FFT, ongoing research)
- optocoupler to detect the 12V AC -> favorite solution
As I was heavy prototyping, I tried wire wrapping and it is fun:
@fotofieber
Wirewrapping is an "old" and well proven technology, remember to have extra cable in case you need to re-wire your cables. Not so popular by DIY as tools used to be fairly expensive as it was protected by patents... -
@bjacobse
Just to add a little more info about adding a GND plane to your PCB
I work in a electronic company, not doing PCB layout there though.
but we have a TV adapter which have 2.4GHz transmitter. and this PCB is GND on both sides and with plenty GND via's (all the small holes) to ensure good grounding
In case you wonder what it is, then it's an Oticon TV adapter 3.0
https://www.youtube.com/watch?v=r4bTIQPdCEo -
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I have finished an enclosure for the my MDMSPanel "Nextion" today.
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Wow, very cool! Can you share a bit more about the project? Is it MySensors based? Is there code available? What does the hardware inside look like? What processor is it base on?
Ah, scrolling up answered some of my questions :-)
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@kalina Kudos on the case. Is that a case you designed, or is it a prefab case that you bought somewhere? I am assuming that from the markings inside the case that it is a prefab.I do like the design though and love it's underlying project. Is that just a thermostat, or is it a multi option controller?
Vera Plus running UI7 with MySensors, Sonoffs and 1-Wire devices
Visit my website for more Bits, Bytes and Ramblings from me: http://dan.bemowski.info/ -
@kalina Kudos on the case. Is that a case you designed, or is it a prefab case that you bought somewhere? I am assuming that from the markings inside the case that it is a prefab.I do like the design though and love it's underlying project. Is that just a thermostat, or is it a multi option controller?
@dbemowsk Yes, it is a factory case, and before the changing it looked like this :
At the moment this is termostat, but I will not limit myself to this)) The purpose of the panel will be determined by the software project loaded into it. I will describe this in more detail when I publish the project.
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@dbemowsk Yes, it is a factory case, and before the changing it looked like this :
At the moment this is termostat, but I will not limit myself to this)) The purpose of the panel will be determined by the software project loaded into it. I will describe this in more detail when I publish the project.
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@bjacobse said in What did you build today (Pictures) ?:
Yes it's very impressing what you have achieved
Thanks, the project is published already.
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Building a (xenon) flash to notify alarms. Flashes every 5 seconds if activated.
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Today I made a iscp pogo pin adapter... Great for uploading bootloaders.
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Almost finished one of my projects. The test sketch showed that HW works as it should. Now i need to make good software.
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@sundberg84 that board looks nice and crisp 👍
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Birth of water leakage sensor:) on mysensors..
https://youtu.be/xsoeffaGAG0 -
After months of slow painstaking work (day job is somewhat busy, o and the kids ;) ) I finally completed my Domoticz server(case) with Dashticz as frontend.
The Endgame; when my new house is finished every room is monitored for motion, RH and Temperature using my MySensors PCB's. (Jung AS500 Node)
Everything is monitored using a raspberry with a MySensors serial gateway (NRF52) and an RFLink controller for my KAKU switches.
To make everything nice and shiny I use Dasticz to interface the data in a proper way using a tablet that somehow will be mounted on a wall or something.
So far the introduction;
To put everything away nice and tidy I used a box to install everything using 2 pieces of din-rail.
It has a 230V inlet that is converted to 5V using an off the shelf (safety sake) MeanWell RS-15-5 converter. This powers everything using a couple of din-Rail terminals.
- Terminal => USB-micro => Raspberry
- Terminal => just a couple of wires => old nrf52 prototype => FTDI => Raspberry
- Raspberry => RF-link (ard. Mega +433mhz)
Since the Raspberry has Wifi no other cable then power is needed to operate
Second part: the 2 screenshots of dasthicsz.
The best part, it took some work, but the WAF incread big time, because everything looks clean :)
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