Hi!

After more than 6 month of using MDMSNode "Lighting" I decided make some improvements for this device. And now I want to present the new revision (Rev 1.1).

So, what have been changed?

• TRIAC managing. For limiting the rate of change in voltage or current (di/dt or dv/dt) and over voltage during turn-on and turn-off I decided add snubber circuit - 39 Ohm + 0.01uF parallel the TRIAC.

• SMD version NRF24L01. After last my order on Aliexpress I had so many problems with DIP NRF24L01 and decided use SMD version.

Cutout for NRFL01 antenna.

• New SMD quartz. To save more space on the PCB instead of the HC49 and two capacitors, I decided to use a quartz of CSTCE series.

• Debugging. Added next things: LED for indicating lamp on/off state, LED and button for debugging, as well as reset button for the microcontroller.

• Enclosure. Designed special for Spelsberg enclosure for outdoor using.

• Light switch. A terminal block was added to connect the wall light switch. This will make it possible to work with the device even if there is no communication with the controller.

• External conection. Some soldering pads for external connections.

• Thermal protected. Added thermal fuse.