My first Lora Node pcb

End Devices (Nodes)
1

Hey @all i want to show you my first lora node pcb i made

Functions:

DHT22 Temp Humi Sensor
Duo Led
Light Sensor
SMA Connector

Some I/O to pin header

Basic Board Arduino pro mini 3,3v clone
Lora Modem SX1276

Let me know what you think about

Regards from Germanyimage image

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2

Are you going to share the design?
Maybe also a Idee to prepare it with connection for a Co2 Sensor.

3

no problem i will help others to make all easy :wink:

i can send you gerber file in zip format when you want ? because i want to upload it here but only accept .jpg. .pdf. and so on

let me know your e-mail

4

FWIW the ATmega238p is needlessly resource constrained (it easily runs out of space trying to use LMiC versions will all needed bugfixes) so making more nodes based on it isn’t really advisable. If one really wants an ATmega based node, look at the new ATmega4809 etc as on the Nano Every.

The chip itself is dirt cheap, so probably the clone makers will catch up soon.

That said, for a LoRaWAN node it may be easier to get low power consumption by using the chip directly, rather than on an “Arduino” sub-module which typically needs re-work to get low power sleep.

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