![]() It has a compact design and you can place it wherever you like – on a flat surface or up on your wall. Miniserver Go is the perfect solution for retrofitting and renovations thanks to its integrated Loxone Air wireless technology. It is installed in your switch panel and controls all the elements in your apartment or house from there. A wired Miniserver that is ideal for new builds. I am using three meter blocks just to get the absolute total, and then the split of amount spent in high and low tariff.The Loxone Miniserver comes in two versions. My test board for this wiring Installed in a small box Photo-transistor added to the meter just using a transparent sticky tapeĪnd this is how it looks like in Loxone. This is country specific, so you might not need to bother with such complexity. In my case I measure the total energy consumption, but also the consumption in both HI and LO energy plan. I just added one indication LED with resistor to indicate the circuit is working and used standard ethernet connector (RJ-45) and socket to make this detachable from the cabinet for any kind of maintenance. It works! I used transparent adhesive tape to place the photo-transistor facing the red LED on the meter, and put the rest of the circuit board into a small box next to it. Feel free to share your experience and thoughts below the post or in the forum. Please note, that the sensitivity of the whole detection circuit is very dependent on the transistors you’ll get, so some minor tweaks might be necessary. However, Loxone is able to deal with these without any issues, so I avoided a Schmitt trigger to keep this simple. Obviously, some further additions could have been added to shape the output signal pulses properly. In one of the last optimization iterations I have removed the second diode (D2) from this diagram to get the most of the output. For instance, lowering the resistance R2 will increase the voltage in the idle output, but at the same time increase the current that will go through the T2 when T1 is lit up. Both values will need to match the specs of the related transistors. The proper setting of R1 and R2 is a key to the success of the schematics. Simple inversion if the signal will give you pulse to be consumed by the utility meter block in Loxone config. The state will be high when there is complete darkness, and low whenever there is a light detected. The output of this circuit can be connected directly to the one of the Loxone digital inputs. Closed T2 means almost zero voltage on the output side of the circuit as opposed to the open state where we have there the input voltage (24V) lowered by the resistor R2. If the photo transistor T1 registers any light it closes the circuit from collector to emitter and this triggers the T2 transistor to close as well. This detail is written on each of the electricity meter. Every pulse of the LED means certain amount of energy consumed. How it works? Photo transistor is placed in front of the red LED of the meter.
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