MySensorsNode (MSN) All-In-One-PCB for easy node building

[se-O-matic]

Hi
I made a universal device for mysensors to building easy different nodes. The PCB fits in a small case (Strapubox 6090), so simple sensors can build with minimal effort.

The minimal assembly consists of a Mega328P microcontroller (as seen on many Arduinos), a RFM69CW rf module with 868 or 433 MHz and some little stuff for reverse protection and battery monitoring.

With different assembly options, this PCB can be used for:

• Temperature, humidity and pressure measurements (With BME280 assembled)
• Temp-Sensor above with additional light level (with extra BH1750 on the proto field)
• Cheap temperature measurement (With DS18B20 assembled on the small proto field)
• IR-reader for digital Power meter (with external IR Head connected to the UART)
• Prototyping on Breadboards with soldered pin header

The PCB features also

• ISP pins are connected to the pin header for easy flashing the bootloader
• Arduino pro mini compatible pin header for connecting a cheap USB-UART-board without wires
• Optional LED (for example for active transmission)
• Mounting holes for fitting in the “Strapubox 6090” case
• A snap off proto board, which fit under or on top of the MSN PCB.

Hardware and software can be found on my github repository. Github/se-O-matic/msn/

MSN as temperature sensors (BME280), complete assembly (without batteries):

MSN as power-meter reader with ir-head:

Greets!