Tag archives: loxone

Saturday, 6th May 2017 - 19:30:32


At last the finished product! Fully soldered with paste and hot air, with terminals mounted and mounted in it's DIN rail enclosure ready to go.

Friday, 31st March 2017 - 09:00:51


Level shifter powers up. No smoke. Unfortunately it doesn't work correctly because there is more current coming into the base of each transistor than I anticipated. It's enough to hold all transistors on. So I'll try getting some mosfets with the same pinout and seeing how they do.

Friday, 17th March 2017 - 09:10:47


I had a go at some SMD soldering with solder paste for the level converter board. It came out OK.

Wednesday, 8th March 2017 - 10:49:17

12V to 24V Level Shifter PCB

The PCB for the 12V to 24V has arrived.

Wednesday, 24th August 2016 - 01:24:12


What's a Loxone and why does the stupid thing have such a low input impedance? The reason is this chip. HVS882. It's an industrial input serializer chip. The input impedance is only 10k. This chip operates in a "window" mode for detecting "on" vs "off". With the recommended 4.7k pullup on a 24V supply, this leaves things very close to the 16V threshold that the chip requires for an "on" state. So I've started using 3.9k pullups which gives a little more room for movement on longer cable runs where a few volts can potentially be lost bringing it under the required 16V.

Tuesday, 9th February 2016 - 09:54:04


LED Lighting control box mounted and installed.