Matrix user forums

Hi Dylan, We don’t yet have a fixed date for general availability in January. However, as the timing is critical to your project completion and you are keen to use and demonstrate our GSM module, I will ensure there is one available for you in early January, so that you can start putting your projec...

This is easily done with the Flowcode UART (RS232) component, with which you can setup the rate and bit count and then just create your string and let the component take care of sending it (as ASCII characters). The difference between RS232 and RS485 that you will need to take into consideration is ...

Your Timer Interrupt only needs to be enabled once, so best to move it outside your “While 1” loop.
Also you might need to check the properties, as the Prescaler is currently set to 1:1 so has a very high interrupt frequency.

Yes, very good point Enamul, the EB015 would be ideal to interface to the Advanced Module UART RX/TX

Thanks for your on-going comments and suggestions Enamul. Just to confirm that the Advanced Expansion Module does have a battery (Coin Cell) backed Real Time Clock, and also with the two sensor sockets this will be the easiest way to interface to the Temperature Probe, and any other Vernier devices....

Thanks for that Enamul. That sounds like a very interesting project! Dylan, as your project develops let us know where you need any specific help. Also, do you have a time plan for the project? As we expect the GSM modules to be available in January, so we could provide any help prior to then ready ...

Hi Joe, It might also be worth you considering using a MIAC, which is a microcontroller solution that has plenty of well protected input and output options, including two PWM channels, in a ruggedized container. It all depends upon how you want to package your project and how hands-on you want to be...

Thanks John and Pete for your work and experiences with this. The FAT component has been developed quite extensively recently. In view of that on-going improvement (and to comply with a larger range of cards) we took the decision to drive the MIAC expansion module with a low level interface, rather ...

Hello Thushara, I just thought I would update you about the changes we have made to the MIAC System in view of feedback we have received such as yours. The MIAC System and Expansion Modules are now much more easily customised so as to be compatible with an existing CAN Bus system. This applies to al...

Dear Nazaire,

There was a bug in our Slave code, sorry about that.
We have now updated the Slave hex on the web resource page, please use this new one.

Best regards,
Leigh

Hi James Yes, it does look as though there is most likely damage to at least one of the MIACs. The motor outputs should not be directly connected together as they can sink and source current. For returning the faulty unit please see http://www.matrixmultimedia.com/returns_policy.php If you would lik...

Hi James,
There is a reverse voltage protection diode in the circuit to the ABCD motor drivers that will be the cause of your voltage drop.
Regards,
Leigh

Hello Thushara, Thank you for your update. Sounds like you are doing exciting things with MIACs. We intend to develop the MIAC System to be more easily integratable with existing or additional CAN devices and systems. In the meantime this document should help you understand how we use the CAN bus an...

Hi Pete, Thank you for the order! Yes, we hope we are giving our customers plenty to play with :) We don’t have any further individual information. Most information is contained in the Flowcode help files for Component Macros. If you then have any specific questions regarding the use of your module,...

Hello Pete,

Thank you for your interest and suggestion for additional Expansion Modules.
It is something we can give consideration to.

Best regards,
Leigh

Hello Thushara, Thank you for your interest in the MIAC Expansion Modules. These have been designed primarily to give expansion capabilities to MIAC without the need to understand or configure the CAN bus. As a result of that, interfacing to other CAN devices on the bus is more difficult. We have pr...

Hi The LDR and microphone are generic parts. The microphone is of the electret type and is powered via R26, it has a pre-amplifier for input to the microcontroller ADC. The LDR is a resistor whose resistance decreases with increasing light intensity. For more comprehensive details on how they work I...