Matrix user forums

Thanks Chipfryer, You are right about the hardware I'm using and testing. Strange thing is that, what I used last night, and flashed again and again, didn't work, but today I changed a small thing and now the text is send as it should. The small thing I changed had nothing to do with the variable......

I have a string variable "mytext" In Flowcode I fill this with text=> mytext= "This My Text I want to transmit" The I send it as a string via the UART (which works). UART1 send string mytext On the receiver side the text becomes gibberish. When I send the text without using the variable, the RX rece...

I need to review a few things before I can go further. Still the project doesn't work after all the suggestions. I've searched and the powersupply is critical. The distance of the TX and RX is something to watch. Apparently they cannot be to close within each others range... I'm going to look for al...

It helps others if the dialogue is in the forum. If the code is sensitive then please provide some information on how things should be done so others can learn as well. You know me Kersing. You'be helped me a great deal already in the past and I appreciate this. I've helped others on this forum (an...

Hi I'm very keen to hear about your progress with these modules and will probably obtain a couple for myself to have a play once I get back. I trust that you can now send and receive status requests and can confirm the setup of each module by issuing the appropriate command. Could you post the conf...

In this topic I asked about a few things about the E32-868 LORA module. https://www.matrixtsl.com/mmforums/viewtopic.php?f=76&t=21281 I'm trying to make a simple TX and RX Flowcode project, but again I don't get it. The datasheet isn't that good and there aren't enough examples to make them work. Da...

Thank you all!

This is something that I wanted to ask earlier. I have these Chinese Arduino clones, with ch340 chips. If I use the hardware UART, I can't flash the Arduino while the RX is connected to a device.. I need to disconnect the RX pin before I can flash the chip. Is there a way that I can flash it without...

Hi Glad to hear it works. My cheapo USB logic analyser can operate in many ways / protocols. Depending on setup it could easily look as though it is "reading" 195 over a time period but if I expand it out I might then see three individual characters over x-microseconds or the like. Anyway, moot poi...

Hi Just got back but off again tomorrow. Looking at your program the UART settings seem good but I think the problem may lie in how you are sending C3 etc. You are using the command SendNumber which sends your value as a string of digits. So you sending C3/195 sends out the value 0x31/49, 0x39/57 t...

Hi Traveling just now and don't have a copy of FC on this laptop (I really should do though...). From memory, in the UART properties you will have an option to set baud (9600), an option to set the data (8 bits) then further down an option to set flow control (no). With that you should be able to c...

Hi Not having an Arduino I'm unsure as to their needs and operation but I'm sure you will have all the usual suspects such as timing etc in hand. I think this is OK, I've added a few flashing leds in the project and they seem to work.. My interpretation of the manual (which may not be the case) is ...

Looking at the documentation you are sending the right sequence. What voltage is the Arduino you are using? If 5V you might need to add pull-ups to RX and another signal (according to the manual see page 6 at the bottom) I've added a pull up to the RX but it was always logic high (5V). I've tried a...

Hi I'm not familiar with Arduino so can't comment much on it. Usually "in succession" means that whatever you send is sent as a complete message. On page 13 of the instruction manual it gives a couple of examples (isn't Chinglish a wonderful language?) and it appears that the space is used as a sep...

BTW: this is the datasheet: https://www.google.com/url?sa=t&rct=j&q ... sGuQyA_XLz_

I'm playing with a E32-868T20D Lora module. The first test isn't a succes. I'm trying to get the module return it's settings by sending C3+C3+C3. This should return the settings for the module. I see that with my logic analyser there are 3 times "195" send by my Arduino, the pin that indicates that ...

Thank you BenJ,

I've already replaced the Arduino with another one. And now it works from the USB port.
Still it isn't possible to flash the program onto the original one.
I will try it later and if it still doesn't work it will thrown into the garbage bin.

I use Flowcode ones in a while, and everytime there is something that doesn't work. :-( I want to upload a Flowcode project to an Arduino that is soldered onto a PCB and is very hard to detach from the PCB. The only thing that is connected is an LCD and a few I/O pins that are tied to GND. There was...

When I try to convert the C code block in that was posted in this post:
viewtopic.php?f=76&t=21187#p95162

My Flowcode crashes time after time.

When generated a float variable, it isn't possible anymore to change the type.
When you want to edit a Float, all the other options are greyed out.

Is it possible that the C code simulation doesn't simulate Sin/Tan/Cos and other trigonometry functions?

mnf wrote:The majority of formula should convert to a FC calculation box easily - but the auto C->Flowcode converter doesn't seem to cope with sin, cos & tan etc...

Martin

Thank you again, now it works (think I've replied this to Kersing accidental )

How about using the C code to flowcode conversion option available in FC8? I've never heard about the C sim button, nor the C to flowchart option. Maybe the Wiki should be updated or better be organised. Everytime I look for something I get 40 results that doesn't help me. Thanks again for all the ...

Hi MJU, Flowcode renames variables to either FCV_NAME or for locals FCL_NAME (where NAME is the name you gave the variable converted to upper case) To define a float - declare the variable as type float (An aside - note that due to a bug in FC - you must do this when initially declaring the variabl...

I want to use several formulas from which I have the C-code already, in a Flowcode project. How do I do the following... - Add variables in Flowcode (floating) - Add a C-component. - In this C-component put formulas that use the variables that were declared in Flowcode - Use the result of the formul...