Rinnai Gas Heater (FTR557)

Highlights Turns heater off and on Transmits heater status back to Gateway even when manually controlled Powered internally by Rinnai heater (model 557FTR) WARNING: This build works around high voltage, GAS(!!) and directly injects into your gas heater. My Company and I accept no liability whatsoever for anything. 557FTR Service Manual: http://manualzz.com/doc/1237654/rinnai-rhfe-557ftr-service-manual Rinnai Remote Thermostat product Rinnai sells a remote thermostat which plugs into their heaters: https://rinnai.co.nz/Download/ProductFile?encid=3LlAHF7kVaWaug8yiGgvnIfbR4-NmaiQPNZVLYHILBk~ https://www.rinnai-lms.com/resources/288/200000075-Remote%20Thermostat%20Installation%20Instructions.pdf All those modules do is connect two Red and Blue wires together on the units main PCB using a relay. The module provides separate…

Read More

WiFi RGB Controller

An alternate approach to building a MySensors RGB Controller is to now purchase a WiFi RGB Controller. These are available in Bluetooth too, but proximity issues meant the WiFi works better for me. And they are available in RGBW. These little controllers are fantastic. Capable of supplying 144w – that’s over 15 meters of RGB. The results below are from some experimenting. Needless to say, I’ll be buying more of these instead of the DIY approach in the future.   Current Draw from 5m of RGB strip Documenting current draw on…

Read More

Minecraft lights

Highlights OTT kids room. Replace batteries in Minecraft lights with power from MySensors node (original reason for this mod,  so we don’t have to keep replacing/charging) Control off/on, brightness and random flicker effect Establish the start of a 12v power distribution point in the attic for additional nodes in the future. Drop from 12v to 5v/3.3v in the actual node. This way there’s no potential for voltage drop over distance to affect nodes.   /** * The MySensors Arduino library handles the wireless radio link and protocol * between your…

Read More

Passive Infrared Sensor (PIR)

Highlights Powered by the alarms PIR No contact with the PIRs actual sense circuits, so no interruptions to the alarm functionality Replicates where I initially used an expensive Z-Wave Fibaro Universal Binary Sensor FGBS-001 / FGBS-321 I initially set out to replace the Z-Wave unit with a similar setup. I placed an optocoupler in series with the trip circuit and calculated the various resistances etc to replace one of the standard End Of Line / Tamper resistors. This worked, but I always felt a little funny about modifying a core security…

Read More

Power Usage Sensor

Highlights Standard MySensors Pulse Meter 3DU5 phototransistor detects meter pulses   WARNING: This build works around high voltage. My Company and I accept no liability whatsoever for your own well being or that of your electrical gear.     /** * The MySensors Arduino library handles the wireless radio link and protocol * between your home built sensors/actuators and HA controller of choice. * The sensors forms a self healing radio network with optional repeaters. Each * repeater and gateway builds a routing tables in EEPROM which keeps track of…

Read More

LIFX

While the LIFX LED bulbs are not part of the MySensors network, they are still part of the Smart Home. LIFX bulbs connect directly to the Wi-Fi network and require no additional hardware. We use the LIFX application for additional effects, but keep simple, default lighting settings as quick actions in OpenHAB. The bulbs are allocated Static IP addresses and physically left on all of the time. They are controlled by OpenHAB with executed shell scripts. In our case, the lounge LIFX bulbs have been retrofitted into what was two…

Read More

MySensors, OpenHAB, RaspberryPi, MQTT & Google Home

Smart Home Our Smart Home primarily consists of scratch built, MySensors components and Google Home voice control. “MySensors is an open source hardware and software community focusing on do-it-yourself home automation and Internet of Things” I started off using a single Z-Wave binary component and USB stick, but realised it would be expensive to scale and still not do everything I wanted. MySensors components are build using cheap Arduino computers and standard electronic components. Time & effort is all that is required to piece things together. @Brendanl on MySensors Forum…

Read More

MQTT Gateway

I choose an MQTT gateway over an Ethernet one so it could be connected to the network anywhere in the house and not be tethered to a specific device. Built using instructions at MySensors. Parts include: Arduino Nano NRF24L01+PA+LNA wireless module W5100 LAN Ethernet Shield When I originally wanted to add MY_SIGNING_SOFT, there wasn’t enough memory available on the Nano for that and the MQTT code. Answer: trick the Nano into thinking it’s an Uno and it frees up more memory. My experiences and more information available in the MySensors…

Read More

Daikin Heat Pump

Highlights Powered by Daikin Direct injection to Daikin IR Receiver (no IR blaster) Direct feedback OpenHAB controlled to activate for heat when below 11 degrees and room has been marked as in use. Opposite will occur when I code for the opposite in summer time here. Heat pump remote can still be used and OpenHAB syncs to its state   WARNING: This build works around high voltage and directly injects into your heat pump. My Company and I accept no liability whatsoever for your own well being or that of…

Read More