My first multisensor daughter board
-
Hi!
I am happy to present my first daughter board for MyTinyCamel (my other board in progress).
All this work is in progress, but I like to share my work and it was rather lot of work ! but I think I will have something small&modular finally :smiley:I have made another version of MyTinyCamel with onboard sensors, but what about if I need a PIR sensor, or a gesture sensor. and want to keep things small. So I made this little daughter board.
And a small vid to see how it looks with MyTinyCamel and 2xaaa:
https://youtu.be/4ULY3P-F-FoTechnical descriptions (all optional):
- 0805 NTC thermistor for temperature
- SI7021 : temperature and humidity
- BMP180 : pressure, barometer
- VEML6070 : UV
- TSL2561: ambiant light & IR
- APDS-9960 : ambiant light & RGB & Gesture
- PIR motion with mini lens (schematic is based on HC-SR501), with H-pad & trimmer footprint for sensibility
- PIR can be enabled/disabled by onboard mosfet on daugther board
- enlarged footprints for sensors (I hope to be able to handsolder them by adding a small drop of paste and heating the pad, otherwise I will have to build a reflow oven...)
- solder jumper for each sensor to choose : VCC3 from MyTinyCamel or VCC_Sensors from Mytinycamel by mosfet
There are 2 footprints for PIR. Why? because MyTinyCamel can have RFM69 or NRF24 smd. When nrf24 is used as you can see in the vid, it is a little wider. I wanted PIR sensor centered on top of a custom enclosure, in each case, so...
Some notes :
- as it is small, you can't use Gesture chip and PIR motion in same time. it is selectable by jumper. This jumper let you use : PIR or Gesture or External IO (smd pad).
- When Gesture chip is soldered (APDS-9960), the onboard mosfet is used to enable/disable the internal IR led of the sensor. But it can still sense ambiant light by its VCC.
- if it works well, I will make another version of this daugther boad for @Anticimex motherboard. I have thought a lot about I could make this compatible but I needed to stick to MyTinyCamel for this rev...
I ordered one set of board to see, at oshpark... But your feedback are welcome of course, as now I need to design a small custom enclosure for this..
And it gives me lot of other idea, like a micro-usb connector for usb powered or Hi-link AC-DC step down for something in wall mounted...
See you soon!
-
Very nice!!! How do you make the 3D views of your boards ?
Gert
-
@GertSanders: thx :)
I use Sketchup. It is easier to use with Eagle (lots of tuts on internet). I find the models everywhere I can (sparkfun, 3d sketchup market...) then I make changes if needed or create some (like the lens). I would prefer Solidworks, easier for me, but I can't export eagle to Solidworks, so.. -
just some ideas, but it's so fast with SolidW :smile:
Do you want some salt??
I need a 3d printer, aaargh :satisfied:
-
@Anticimex : it seems very interesting. Something I was searching for.. I have found some others links different, but not easier to implement as your link. A low power PIR could be great, this is something missing in our battery powered sensors toolbox. I will look at this asap. Thx for share :smiley:
-
@Anticimex : it seems very interesting. Something I was searching for.. I have found some others links different, but not easier to implement as your link. A low power PIR could be great, this is something missing in our battery powered sensors toolbox. I will look at this asap. Thx for share :smiley:
-
@Anticimex: yes, good idea. I am still waiting my D203s pir sensors. asa I get them, I try your link on breadboard and give you some news. thx. see you soon :smiley:
-
@Anticimex: yes, good idea. I am still waiting my D203s pir sensors. asa I get them, I try your link on breadboard and give you some news. thx. see you soon :smiley:
-
@Dylano: thx for interest :). I am comparing few pcbas, waiting my reflow oven much for small batch and boost prototyping than selling. I would prefer to have a good quotation or deal like limited partnership maybe...
In fact I have other boards in progress maybe you would prefer..
This one is based on mytinycamel, a board I made for ultra low power <1uA + booster, and for the exercise of power sequence&mosfets.... but it is better for telemetry application than PIR motion sensor.
Plus, here it needs a shield which add a little bit thickness, for indoor, I know it's just few mm...So I made this one, better for pir (in progress, I will post pics) : http://forum.mysensors.org/topic/2951/my-mysx-multisensors-board
but mytinycamel is still actual because modular and enough cheap too, it works but I redraw it to add more connectors as i don't need pir on this one. rfm69 or nrf, ldo or booster+ ultra low power modee, eprom, power on/off sensors radios 2.4x5cm blabla...looks like this now with 3 connectors for common sensors.
Note: I have not yet this rev, this is a part of my week order ;) (with a dhl in my face please, as I am not so patient ...)So for the moment nothing to sell, but in future..I would be glad :)
-
@alexsh1
veml6070 works nice.
that's a while i've done this ulpnode board. finally i've done my coincell multisensors for indoor.
And now, for lot of sensors etc i use more powerful mcu.
That said i have a weather extension board with lot of sensors including the veml6070. will try to release when i'have time ;)
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login