My Project

Hi, Very nice looking project. Do you have a list of the hardware you used and a schematic by any chance?

Below 2.8V won't work with the Atmega328 unless you reconfigure the fuses

The RFLink (433mhz) has a great PCB (for Mega though) that has both Nrf24+ slot and 433 transiever slot - but at this moment the only thing implemented is the 433mhz function - so its a bit of work.

I had the same problem as you and I have found a possible solution. The arduino has default auto reset on serial connection. So when you connect gateway to controller trough USB, the gateway is rebooting immediately and processing presentation(). In case of wireless gateway (esp8266) this does not happen. The presentation() runs only on startup of the gateway. I made little change in MyGatewayTransportEthernet.cpp and now the gateway processes presentation() when the controller is connecting to it. You can find here my solution: https://github.com/zaphodus/Arduino/commit/ce93db73513f1da45637b186787c9b2501e5d882

@barduino I stumbled across this project a year or so ago while researching something similar to your project. There are some good resources there. I never got around to following up on it but your project is tempting me...mixing water with electronics, what's not to love.

@barduino i made a pull request for the development branch but they want me to change a couple more things before they merge it. I just havent got around to it yet. Ive never messed with the mqtt gateway nor do i really even know what it is but let me know if i can help you out

@mbj Thx, I wont draw any scientific conclusions from your figures either. I was just curious. As you said there're always discussion about accuracy and working ranges etc.

Long time no see... I had time to work on my sensors lately and here are some pictures of my humidity sensor which is running here for three months now: [image: 1454090345509-img_00061.jpg] [image: 1454090408434-img_00041.jpg] [image: 1454090608793-img_00031.jpg] I left out the power regulator shown above and also desoldered the LED and voltage regulator of the Arduino to safe power. The sensor is directly powered by 3.7V of the lithium battery. The voltage is measured and the battery will be recharged when it goes down. Since I also built a 3D printer lately, I was able to put the sensor into a little box. Now I can easily measure humidity and temperature in my bath room and see it in fhem on a raspberry. Currently I'm working on my next pcb... I will show the next one when I'm finished in a new thread.

@drock1985 said: Hey @Pierre-P Yeah, you would need a new gateway for each radio type. I found a new mysensors page ! here: https://www.mysensors.org/download/sensor_api_15#create-repeating-nodes Advanced initialization It's also possible to construct an instance with RFM69 radio driver and/or enable signing support. You can choose one of the following radio drivers: MyTransportNRF24 transport(RF24_CE_PIN, RF24_CS_PIN, RF24_PA_LEVEL_GW); or MyTransportRFM69 transport(RFM69_FREQUENCY, RFM69_NETWORKID, RF69_SPI_CS, RF69_IRQ_PIN, isRFM69HW, RF69_IRQ_NUM);

With the voltage regulator removed the Arduino can no longer be powered on the raw pin. You need to supply it with maximum 3.3V on Vcc. 2xAA usually works well.

My sketches just do this, they are waiting for commands and they sends updates to the gateway periodically: http://forum.mysensors.org/topic/2747/home-automation-multi-sensor-nodes You may modify them to update the relays status or not.

Sweet! Thanks for the feedback @Anduril .

@ahmedadelhosni Yep, ordered one yesterday. Hope it won't take weeks again.

Hi @sundberg84 Many thanks for your reply.. I have not update to 1.6 yet, but will surly try this this weekend. Will come back if I have questions.. Very existed to get this past a testing/play stage. :satisfied: Chris

The sensor should repeat "find parent" until it gets a response. So there seems to be a problem with the sensor anyway. Has the Arduino been used for something else before? Sometimes clearing the eeprom helps. http://www.mysensors.org/build/debug#clearing-eeprom The radio channel can be changed in MyConfig.h https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/MyConfig.h#L314 but it shouldn't be a problem unless your wifi is extremely busy.

I'm using a different approach using Google Charts, as outlined here. I run Domoticz on a RPi, and I've written a Python script to get values from Domoticz using JSON calls every 10 minutes, and write these to a .csv file, creating a new file each day. I then run a modified version of @stephenmhall's Python script, which creates an html file and calls Google Charts. One advantage of this approach is that you display the webpage in a local browser.