💬 MDMSensor "Multisensor"

[openhardware.io]

https://www.openhardware.io/view/263/MDMSensor-Multisensor

[robosensor]

Have you tried BME280 sensors? It seems for me that single BME280 sensor can substitute this sensors list:

DS18B20 (temperature sensor)
DHT11 (humidity sensor)
Si7021 (humidity sensor)
BMP180 (pressure sensor)

[kalina]

@robosensor said:

Have you tried BME280 sensors?

No, I haven't.

@robosensor said:

It seems for me that single BME280 sensor can substitute this sensors list:
DS18B20 (temperature sensor)
DHT11 (humidity sensor)
Si7021 (humidity sensor)
BMP180 (pressure sensor)

Of course it is possible. I use the most popular types of sensors in the community, for which there are many ready-made examples. Also, everyone can solder just necessary sensors for him to make its own device.
But despite this, I am ready to discuss a set of sensors in my "Multisensor"..... and I don't have ordered pcb's , it means that something can be changed

[Cliff Karlsson]

Is it possibe to add any additional sensors to the build, like PIR?

[kalina]

I have received the pcbs from PCBWAY. Quality as always on top + a small price (10$ - 10pcs). I am going to solder two versions with different radios ASAP. To be continued...

[kalina]

The first MDMSensor board is assembled (NRF24 version). Now I'm going to test it and make enclosure.

[TD22057]

Very cool. What kind of connector are you using to connect to the programming pads?

[kalina]

@TD22057, This is Industrial Card Edge Slot Socket Connector
I use my own handmade an adapter for programming.

It has a lot wires, instead this i made the MDMSAccessory "Programming" few days ago.

[MiKa]

Possible to add also other battery holder like CR123 or CR2450 to the board?

[kalina]

@MiKa Yes, i think it is possible. I already have some improvments for this device, but i have no free time to do this, because i am working on MDMSNode "Power" now.

[gonzalonal]

Hi @kalina. Sorry for rebumping this topic with an unrelated concern.

I am interested in the enclosures you've made for this design and for your gateway.
I have finished a design of my own and now I want to design the enclosure, but I have found that is very expensive to have a custom case built for this prototypes boards, specially when dealing with low volumes.

How do you deal with this issue? Have you found a cheap plastic case manufacturer?

Thanks!

[kalina]

@gonzalonal said in MDMSensor "Multisensor":

How do you deal with this issue? Have you found a cheap plastic case manufacturer?

I look for an enclosure on the Aliexpress site, but all these enclosures not ready for using, they require machining on CNC machines.

[kalina]

I have made the firtst device with enclosure already...

[hek]

Is that 3d printed or did you do some injection moulding?

[gohan]

@hek I hope he did some cnc work on it

[kalina]

@gohan Yes, you are right, this is done by cnc router.