Matrix user forums

Hello For stm32 I am currently using the chip STM32F030RC with 256K. You can find china pcbs for less than € 2. This chip represents the economic line of ST but has discrete performance. If you want something more powerful you can move on the F4 line. For example STM32F411CE with 512K and excellent...

Thank you BenJ!

The ESP32 would be great as a supported chip, but this is 4 years old already.

Do you have an idea when it will be supported in FC8?
The STM32 boards, I'm going to check these out.

Any more suggestions?

I caught myself to have ordered many Arduino-like, Chinese, develop boards. These are very cheap and they are very compatible with the Arduino software AND with Flowcode. But these boards are old-school hardware. I have the Flowcode 16 bit PIC license, the AVR and the RPI license. Is there a cheap d...

Hi I've just upgraded the machine I used to test with to latest FC8 version (8.2.x) including files and it resolved my RXINT0 Interrupt problems. I thought I'd done this already but the process hadn't completed. Maybe that was throwing a spanner in the works, but I can now confirm that the interrup...

I've made a flowchart with FC8 that uses the circular buffer which is filled with data from the UART with an interrupt, and this doesn't work. I've made a similar flowchart in FC7 with almost the same functionality, and now the "waitforvalue" works fine. Frustrating because I would think that these ...

If the interrupt on RX is not working in hardware this maybe the reason that some of my projects don't work. I use this interrupt and sometimes it works and sometimes it doesn't work. Can someone please confirm that the UART RXINT0 function in Flowcode works?? Certainly in Arduino Nano which I'm usi...

Hi MJU Could you post your chart please (or perhaps PM it)? Guessing your better placed for the shutdown with all those beers to keep you company :) Regards An Roman emperor (?) said: "Give the people what they want: Sun, beer and Flowcode" and this is just what we need in these Covid19 times :-) I...

Hello, My first guess would be the UART baud rate or something similar is off. Have you confirmed the micro is running at the speed you think it is using the 1 second flasher test. Another thing is to check the UART receive interrupt is enabled AFTER the UART is initialised. Lastly The waitforvalue...

I've made a flowchart with a an interrupt where I "receive a character" on the UART RX-pin (timeout = 0) and put this byte in a circular buffer. This interrupt is enabled throughout the whole flowchart Somewhere I need to check if a certain value "Ack" is received. I try to do this with the "waitfor...

Maybe a strange feature, but would it be possible to add all other files that Flowcode generates in a single file? In the directory where the FCFX file is stored, the other files are visible too. For every project there are *.cof *.elf *.hex ... and so on files generated. Wouldn't it be fine if all ...

The macro call will be the value. So if Macro_1() then In a decision you just enter 'Macro_1()' for the 'if:'. If your macro requires arguments (say 2) you enter 'Macro_1(1,"second")' or 'Macro_1(.var1, .var2)' if you want to pass the values of local var1 and var2. Thanks for your advice! Again! :-...

I've got a macro (lest say: Macro_1), and I've made a local variable .Return In the macro, I set .Return to 0 if something didn't work, and to 1 when it ran successfully. From what I've read the .Return should now be used globally to check if the macro ran successfully? How can I check in another ma...

Req: change font type for comments in a flowchart or add text anywhere in a flowchart.. It would be great if we could add a large piece of text somewhere in a flowchart. Now there is the possibility to add comments or a description in a macro, but these aren't very readable. It would be great if we ...

Hi MJU I'm guessing this is a follow up on the module you were using last summer? I knocked up a circuit using those modules and could pass data between without much issue, searching the CB for my target data. Making my way back home now (rather troublesome in current climate) so if you are still n...

Benj wrote:Hello,

How about something like this as a starting point.

CB_Demo.fcfx

This looks great!
I'm going to study it and implement it in my project!

Thanks BenJ

Hey there, I've started a project I was working on last summer again. But my old brain sometimes jumps from here to there. I don't know what I was doing at that time :-( The project I was working on did almost what I wanted, but then failed and because of other priorities I left it alone all this ti...

We hope to be supporting the ESP32 device as a target in the near future. This has a core dedicated for handling the WIFI/Bluetooth software stacks and a separate core for running your program. We have recently revisited this and made big steps forward. The ESP8266 for us is currently better suited...

Great idea, but I don't think the developers think the same.

Currently there are issues with the software stack of that gateway. The Dragino LPS8 would be a better choice and also allows connecting a better antenna. (It does not include a USB power supply, that needs to be added) Can you give me an idea of the range for this kind of gateway? I want to put it...

I found this one: https://www.benl.ebay.be/itm/LoRaGo-MOTE-RN2483-LoRaWAN-Node-in-Arduino-Nano-Form-Factor/123999985035?hash=item1cdef99d8b:g:m-wAAOSwSq1d6LNn Looks promising? There is a schematic in a link. I'm going to check this out or is there a reason why it doesn't meet the requirements? Would...

Thanks kersing, I will check this module out. Do you know your way in the LORA-world? I saw this cheap LORA gateway: https://www.thethingsnetwork.org/docs/gateways/thethingsindoor/ Is this something that can be of any use to other people than myself if I put it on my attic? I don't know much about H...

Anyone connected a device to the Things Network? https://www.thethingsnetwork.org/
Anyone did this via Flowcode?

What hardware did you use? What kind of data do you send?
Tell us about it please.

Strange, I was playing with the WS2812B just last week.
I saw that there was an update for the component, and I've updated it.
Since a few days my W2812B ledstrip doesn't work anymore...

Is there a problem with the new component of is my (waterproof) ledstrip gone bad?

Hi MJU, How about starting a timer (or just a count) when the beam is broken. A second count can also be started if the second beam is interrupted (basically time how long the beam is broken for) - the count/timer increments should be in the main loop of your code. (Have two (or more) counters/time...

I don't want to steal this topic but I was wondering about the same thing lately. What I need to do is detect which of two racetracks finishes first. I have two lasers that shine across two racetracks (70cm) and my idea was to have an interrupt detect which of these laserbeams are broken first. This...