Matrix user forums

Hello,

in your code you have point = point + 3/4

point is a byte and 3/4 in integer maths will be 0.

I've changed your example so that it uses a counter and simply doesn't output every fourth pulse.

The HC-12 look interesting, I might get myself a few to have a play with.

I had great success using these and they have built in detection to ensure that the data is valid before presenting it on the receiver. https://www.rfsolutions.co.uk/radio-modules-c10/alpha-c80 Unfortunatley the smaller modules at least seem to be end of life, I think in part because things like thi...

Hello, I've found what might be causing the problem. The RMC message that contains the data validity flag is usually $GPRMC but in this case it is $G N RMC. I've updated the component to allow for this and hopefully that should solve the problem for you. The other messages all seem to be ok so finge...

Hello, What are you using as your power source for the GPS? Could it be that the current is too low and this is causing your first module to give unreliable data and your second module not to boot up at all? With projects like this I have used Li-ion and Lipo cells with a lot of success. I've also u...

Hello,

How's this?

Hi Alexander,

Please can you provide more information which document are you referring to?

Hello, I beleive in this document is some theory on how to do the request etc though it's not specifically tailored to the ESP8266. https://www.matrixtsl.com/resources/files/datasheets/CP4895-01%20Internet.pdf The associated files are here. https://www.matrixtsl.com/resources/files/software/examples...

Hello,

I'm afraid we do not currently support the I2C Slave on the PIC32 range of devices. It's something I can look into for you if you need this functionality.

Hi George,

What speed is you crystal on your board? If this doesn't match the setting in the Flowcode project options then this could be the cause of the problem.

Does it ever start logging with the L76X, i.e. tell you the data is accurate?

Hello,

I can create you a Flowcode 9 program in a few minutes that would do the job for you if you like.

Hello,

Pins GPIO34 to 39 are input only and so are not capable of digital output. Can you reconnect the display to other Pins, e.g. on PORTA or PORTB 0 to 1.

Hi Bruno,

Here's an example to help get you started.

Hello,

Many thanks for letting us know on this one, sorry it took a while for us to replicate and then find the cause but this has now been resolved in the latest v9 and v8 updates.

Hello,

Please can you post your program so far and I'll have a quick look for you.

Also thanks for the info regarding the tooltip on the reset pin.

Hello Andrew,

Many thanks for letting us know I am now in the process of investigating this one for you. There seems to be some kind of problem relating to the choice of MCU target which may or may not be causing the problem.

Hi George,

Please can you post your flowcode project file and I'll have a look at this for you. The gps output should be fairly standard but i will check the file you sent to make sure.

Hi Carl I use shift registers for my led cube project so these certainly are workable. https://www.instructables.com/Infinite-RGB-LED-Cube/ How often do you need the leds to refresh and do you need them to be dimmable? Another more modular option might be output expanders. Charlieplexing might also ...

Hello Fernando, Thanks for the suggestions. The use of a FIFO buffer would rely on the interrupt being switched on behind the scenes. I beleive this is how Arduino do it, it's certainly something we can consider adding as it would simplify things for a user not used to adding their own interrupt. If...

Hello Fernando, No sorry at the moment v8 cannot simulate the RXInt, a workaround is to call the macro as part of your main program loop. You can use the IsSim component to decide if you are in simulation mode or not. In v9 we have more capability to allow us to do this via new simulation API comman...

Excellent thanks for letting us know

Hello,

How about something like this?
https://www.flowcode.co.uk/forums/viewt ... ?f=9&t=412

Hello, I'm guessing the MySQL database is running on a LAMP type server (Linux, Apache, MySQL, PHP). I would setup a PHP page that logs data to the MySQL from parameters that are passed to the page. You can then pass parameters to the page by using the URL and doing a page request using the ENC28J60...

Hello, Some G code converters will simply use linear interpolation making the circle up of lots of individual straight lines. However some more advanced G code converters will use circular interpolation. It's very similar to linear interpolation but uses SIN and COS with a radius and a central offse...

Aha well done glad you got it working. In our bootloader firmware we check to see if a voltage on an input pin used as a USB detect pin is present when starting. The pin is pulled low by a resistor and connected to the VUSB pin from the USB socket. If the voltage is not present then we jump directly...