I was helping a buddy of mine to build a SCADA system for a project of his just recently and said "You know, I have this modbus library I wrote ages ago, its just what you need." Saw it had over 9k downloads and was floored. Never would have imagined that many people would find it, let alone a single person use it. So here I am trying to find a good Mango M2M tutorial and found your project. I feel REALLY bad for not maintaining it. It did what I needed it to do and threw it on google code just as a place to store it and never thought about it again. I've got to add some RS485 support for my friend, function codes 15 & 16, and a few bug fixes. Pretty stoked to find out it has been put to good use! Thanks for the tutorials too!
Dude. Here we are in 2019 and this still works great. I'm just getting things going but I'm going to be building a nice Control Pendant for Mach4 using Modbus to transmit X,Y,Z coordinates. YAY!
Very easy to understand video- much better than the others I watched. Some friendly feedback: I think that you could have left much of the basics out. If you're using Modbus then you'd know how to wire switches and LEDs ect. Then again, this is TH-cam so you never know! lol If you're writing multi-part videos, it's easier for the viewer to find the next if the title is the same and followed by a number. I ended up browsing all your videos and guessing which was next. Thanks!
Like I said I'll follow this series of videos with great pleasure. Enjoyed having presented the two tools for testing, since testing directly on mango leaves us with questions. Also found it interesting that the library used. I'll search it is better to use it or developed by JPZOMETA. I'm struggling to put my second slave network monitoring parameters of solar energy.
aaand here I am, again... :) I'm little bit confused about Aref pin not being connected to +5V but You are using analog inputs. What is refference voltage then for ADC?! is it connected somewhere to vcc on rs232 shield board? I want to make my own board with ATmega328p (as standalone) and put it in one of those din rail plastic case, with all inputs opto isolated and also opto isolated MOSFET outputs everything on board. I'm just fine with 2 PWM outputs as in the sketch already but I don't need 6 analog inputs, 4 are just fine (a0-to-a3) but it would be useful to have two more Digital outputs bcs there are only 4 of them on pins 8,9,12,13. those would be something like 18 and 19? source: forum.arduino.cc/index.php?topic=28720.0 and also I'm sorry if I'm "little" bit boring.... :D Thanks for all this informations
I was helping a buddy of mine to build a SCADA system for a project of his just recently and said "You know, I have this modbus library I wrote ages ago, its just what you need." Saw it had over 9k downloads and was floored. Never would have imagined that many people would find it, let alone a single person use it. So here I am trying to find a good Mango M2M tutorial and found your project.
I feel REALLY bad for not maintaining it. It did what I needed it to do and threw it on google code just as a place to store it and never thought about it again. I've got to add some RS485 support for my friend, function codes 15 & 16, and a few bug fixes.
Pretty stoked to find out it has been put to good use! Thanks for the tutorials too!
Dude. Here we are in 2019 and this still works great. I'm just getting things going but I'm going to be building a nice Control Pendant for Mach4 using Modbus to transmit X,Y,Z coordinates. YAY!
Very easy to understand video- much better than the others I watched.
Some friendly feedback: I think that you could have left much of the basics out. If you're using Modbus then you'd know how to wire switches and LEDs ect. Then again, this is TH-cam so you never know! lol
If you're writing multi-part videos, it's easier for the viewer to find the next if the title is the same and followed by a number. I ended up browsing all your videos and guessing which was next.
Thanks!
Wonderful !!! could you add a rotary encoder on your project for pulse reading?
Like I said I'll follow this series of videos with great pleasure.
Enjoyed having presented the two tools for testing, since testing directly on mango leaves us with questions. Also found it interesting that the library used. I'll search it is better to use it or developed by JPZOMETA. I'm struggling to put my second slave network monitoring parameters of solar energy.
Hi. Thank you for the video. May i know how to send string to arduino thru modbus?
hi, for the eg:
i want to use 5unit rs485 devices. is it i need 5 modbus converter or 1 modbus converter only? thx
Can you explain,how rs485 to convert to tcp / ip, and via web browser read or write to tcp / ip？
hi, i need help with register holding, do u can help me!!!!!
how to sent data float value via modbus?
aaand here I am, again... :) I'm little bit confused about Aref pin not being connected to +5V but You are using analog inputs. What is refference voltage then for ADC?!
is it connected somewhere to vcc on rs232 shield board?
I want to make my own board with ATmega328p (as standalone) and put it in one of those din rail plastic case, with all inputs opto isolated and also opto isolated MOSFET outputs everything on board.
I'm just fine with 2 PWM outputs as in the sketch already but I don't need 6 analog inputs, 4 are just fine (a0-to-a3) but it would be useful to have two more Digital outputs bcs there are only 4 of them on pins 8,9,12,13. those would be something like 18 and 19?
source: forum.arduino.cc/index.php?topic=28720.0
and also I'm sorry if I'm "little" bit boring.... :D
Thanks for all this informations