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Further to that, I relaised last night that I wont have to send all whole string of gps data but as the units are within a certain distance, most of the string will be the same so I can send only part of the string...... Thus reduce the amount of data

Thanks everyone.

GSM isnt an option as the units will spend more time where there is no phone coverage. However I think what I will do is use a cheaper rs232 radio module to prove the concept then if the units work ok, simply buy a more expensiveunit...


Thanks everyone

Hi all. Not asking everyone to do the work for me but looking for suggestions from those who may have already played or experimented with various bits and pieces. I like using Raspberry pi's but at this point that not locked in. More importantly, I need to transmit GPS coordinates between 2 vehicles...

Thanks Martin

I intend to use the external clock/crystal and caps so that part is fine but I may give the programming via the uno a go anyway. Not really worried about the left over parts/uno at all.

I guess I can give it a go and see what happens. I have ordered a uno so will wait for its arrival

Hi all. I normally play around with Arduino Megas and simply use the development boards. But was thinking about using an Atmega 328p type chip with a crystal etc in a PCB as an end product I guess just for fun. In looking for programmer hardware I cam across an idea (not mine) of using a UNO to prog...

Thanks all. Yep thats the solution I stumbled upon but didnt know how I did it. Got it sending data. Also agree with the LED part. In fact I used an Arduino to run my aquaponics system in the back yard and had an LED mounted on the system where I could see it from the kitchen window. The number of f...

Actually I just found it but not sure how I did. Will have a play and see what I did????

Hi all. Its probably a simple answer but... I am just tinkering with an Arduino Mega 2650 while I wait postage next week. I have it reading an analog pin. I need a simply way of seeing what that value of the pin is? I used to have an old lcd screen laying around but cant find it. I used to use simpl...

All good Leigh. Just wanted to make sure it wasntsomething I was or wasnt doing I was just needing to test a servo and breadboarded a small circuit but was missing a couple of capacitors and since I had a rpi here thought I might do it that way. Absolutely no hurry as its not an ongoing issue for me...

Hi all. I am playing with a servo motor and needed to drive it as a test. Having a RPI sitting here I added a servo component to it but keeps throwing an error. It will simulate but if I try and compile to chip it errors. I took the servo component out and it compiled to chip ok. Put it back without...

Hi Viktor_au I would be happy to do that but be warned at the moment there is only a few Flowcode parts but that will increase. I will detail the aquaponics part as it was all flowcode. I am looking into building a few controls/sensors that sort of work as stand alones but feed info back to the hous...

Hi all. Being an avid tinkerer I have been playing with Flowcode, a RPI and MQTT and thanks to Benj have it working. The reason being I have a house automation system running and have it doing all sorts of things. FYI I use https://www.home-assistant.io/hassio/ Now I used to run my Aquapoinics using...

Sorry. Yep I get it now. Many thanks...

Ok its running in simulation mode using the network comms for the MQTT client network options. So just to clarify, if I want to upload this to the RPI I need to add a RPI network component and point the MQTT client to it and when I use it in simulate poiunt it to the network comms. In other words, i...

Just an update. For those interested, I run a Mosquitto Broker and looked up the stats for it The mqtt documentation explains that the maximum value of the keepalive is 18 hours 12 minutes and 15 seconds. But the mosquitto server disconnects the clients if it does not receive messages before 60 seco...

Thanks Leigh. Yes that makes sense. I have never really looked into the protocol but use it extensively in a house automation system via Node-Red and HomeAssistant. Because it simply works in the background I have never had to study it but sort of wondered if that was the case in a way. Will modify ...

The client I am using on the desktop returns the fllowing

88
qos : 0, retain : false, cmd : publish, dup : false, topic : homeassistant/climate/probofrain, messageId : , length : 36, Raw payload : 5656

The value 88 is what I have something else publishing. Does this shed any light?

Not a problem. I think I have attached the correct file. Just off to work so if not will attach correct one later.

Its a test in progress so a bit (lot) rough

Peter

Hi guys. I was chatting on another topic but thought I should start a new one as the other was in a feature request. I have upgraded my MQTT component so it includes the authentication property. I run a MQTT server/broker on a local server. Its Mosquito. Through help from LeighM I have the MQTT comp...

Thanks Leigh Yes I did that before you replied and it connected using simulation. What threw me was in the initial stage I simply added the MQTT client and it must have did the networking. I then upgraded after finding this thread as I needed authentication and in playing around, I even created a ne...

Thanks Leighm Ok I tried the example for the MQTT scada thing and using the authentication, it connects to my server. However I am having issues making a new program. One thing I noticed was in the properties of the MQTT client in the example, the network component points to a component that shows o...

Hi all. I just came looking in the forums for the same authentication issue and found this thread. Just wanted to add my MQTT server also uses authentication so will download the compnent and give it a whirl.


On a side not, if I run this in the simulator with it try and connect to the server?

Peter

Replying to these sitting in a crane on a job waiting to do a lift so my replies are a bit out of order. Yes I think after reading the sheet myself I am sure you are correct. I think you ask for each temp for each pixel. I will post a followup. Doing overtime today so might put some of my extra cash...

Hi all. In wanting to make a pan and tilt spotlight I thought it may be simpler to use a dmx unit. I would like to control this using a raspberry pi. So my question is: is there a particular hat/shield that works well or what's is everyone's opinion on the physical wiring interface method

Hi all. Just trying out V8. Used to play with V6 and have a new need to decided I would give this new version a go. I need to get various surfaces temps of a block of steel and originaly was going to use multiple thermocouples but then thought I would try a AMG8833 8x8 Matrix thermal sensor. Did a q...