@Cliff-Karlsson said in Is this scenario possible using domoticz?: I have a sensor whish can output four different values depending on how the sensor is triggered, how do I send four different values to domoticz and what sensor type do I chose? I want in this example be able to light up four different lightbulbs in domoticz depending on the sensoroutput. I have done this with my heat pump controller. I'm using dimmer and "linking" that to dummy selector what contains the states(0=off, 10=heat by water, 20=heat by room, 30=freeze protection...). Linking is done with LUA: -- -- Heat pump mode selector<>dimmer mapping event -- commandArray = {} selectorName = 'Pumppu_Mode' selectorId = '332' dimmerName = 'Pumppu_ModeSW2' -- selector -> native if(devicechanged[selectorName]) then iDimLevel = tonumber(otherdevices_svalues[selectorName]) commandArray[dimmerName]='Set Level '..iDimLevel end -- native -> selector. (not triggering events this way of calling with UpdateDevice) if (devicechanged[dimmerName]) then if (devicechanged[dimmerName] == 'Off') then commandArray['UpdateDevice'] = selectorId..'|0|0' else iCurrentDimLevel = 0 if(otherdevices[dimmerName] == 'On') then -- can be "On" or something else iCurrentDimLevel = tonumber(otherdevices_svalues[dimmerName]) else iCurrentDimLevel = tonumber(string.match(otherdevices[dimmerName], "Set Level: (%d+) %%")) end commandArray['UpdateDevice'] = selectorId..'|'..iCurrentDimLevel..'|'..iCurrentDimLevel end end return commandArray I would also want to be able to use a local variable and a global variable. Can I somehow "push" a variable from domoticz to the sensor everytime it changes? Create a device to your sketch and use that to handle the "variable". The rest is just scripting in domoticz after that.

Or use a level shifter.

I never understod how the millis() -part worked so I just changed it to a simple countdown instead.

@Cliff-Karlsson Very interested to see what you'll be building with this sensor! (http://www.pureengineering.com/projects/grid-eye-breakout) Maybe this sketch can help? https://github.com/kriswiner/AMG8833

I did not know about the newPing.h library. (i can not find it when searching for it in the Arduino IDE).. so i googled it. The example (for 15 sensors) confuses me :) Can't you just do something like this? unsigned long pingTimer[SONAR_NUM]; unsigned int cm[SONAR_NUM]; boolean bigChange[SONAR_NUM]; void setup() { pingTimer[0] = millis() + 75; pingTimer[1] = pingTimer[0] + PING_INTERVAL; } void loop() { // your rest code here.. for (uint8_t i = 0; i < SONAR_NUM; i++) if (millis() >= pingTimer[i]) { pingTimer[i] += PING_INTERVAL; cm[i] = sonar.ping_cm(); bigChange[i] = ((doorDistance-(int)cm[i]) > 10)?true:false; } oneSensorCycle; And adjust oneSensorCycle() to use bigChange[0] & bigChange[1] instead of bigChange_0 & bigChange_1

@gohan which one?

I use the Easy Newbie boards for most of my projects. It is designed for the nRF24L01+, and it has space for the needed 3.3v regulator if you are running it at 5V. I don't know if he has a way of using it with the RFM69 radios, but you could check. Plus it has a small proto-board area for wiring your sensors. Kudos to @sundberg84 for the design.

I'd say you present 2 switches, one triggers when someone enters the room, the other when someone exits, but without something else like a pir sensor that actually checks if someone is in the room or not, it will eventually leads to errors in the counter. All the counting will have to be made in the controller and maybe reset people count in a room if no movement is detected for like 30 minutes. How to do it in domoticz, I don't know 😁

@Alpoy Of cource I know that I can buy them at elfa to. But 5 pcs will cost me 199 SEK with shipping witch is pretty much for a few components in my world.

I love this one: https://www.openhardware.io/view/268/RFM69HW-interstitial-board-for-Pro-Mini-Temp-Humidity-sensor

@MikeF Great, I just found the same unit right before your post. Seams to be the best option right now.

@Cliff-Karlsson domoticz allows you to create a virtual / dummy counter sensor. You can increment / decrement it from several other sensor events in a LUA script as mentioned by @sundberg84

For advanced users. Not an out of the box thing, nor usable with mysensors. for writing your firmware, you may need to look if cc2650 is Arduino compatible (Energia). but i'm not sure..then you would need TI's compilers and tools. For use, when you have your firmware ready, it depends on the controller which protocols it supports. perhaps nodered too. you'll need a receiver (GW). for bluetooth or others protocols

@Cliff-Karlsson Assuming your PSU is only driving your buck converter, then, if the device data can be believed (a big IF by the way), then yes, I would expect it could deliver 12a at 5v. That said, you're buying a cat in a bag, and from a no-name Chinese manufacturer no less. So, for instance, who knows whether the parts are actually rated for what they proclaim themselves to be. Those are electrolytic caps. Usually, they don't do well when exposed to heat, and in that design they look to be quite close to the heat sinks. Are the caps really rated for whatever heat you might encounter? That's a big unknown with these types of cheap boards. On the other hand, it's only $4, so maybe that's a trade-off you're willing to live with.

@AWI has a nice piece of code that is exactly what you are looking for, try searching for mood light here on the forum.

@Cliff-Karlsson said: @tbowmo Like a "flex" sensor? Or loadcell? Like a flex sensor..