Matrix user forums

Hi, I share your philosophy... I will continue looking for a solution, I will keep you informed of the process.

Best Regards

HI

It would be a good idea, just the scare it causes at first sight, when they see the cat all red... and walking

A bit of humor, under pressure to find an idea.

Saludos

I started to think that I could paint the cat red, green or blue... something exotic!!!

Hello everyone, I think the magnet on the collar is a good idea, but you're right, I think that metal dust or small metal pieces would be attracted by the collar, and it would be very uncomfortable for the cat; among the links that Viktor sent there is an option to try, the color sensor, I have not ...

Hi Viktor, Thank you very much for the links, you have given me more options to try; I was stuck with the idea that only one RFid would serve my purpose; all this time I was looking for how to replace the RFid, with these links I will try some different options. With everything I have tried and addi...

Hi Chipfryer, I have a cat that sleeps in a small room in the yard, a typical cat that goes out and comes back, but lately some dangerous animals have come in, snakes, tarantulas, etc. We live outside the city, I thought about setting up a small door which would open when the cat is detected by some...

Hi Viktor, I understand what you're saying... I was looking for a simple solution that might have worked for someone, such as raising the supply voltage, some kind of antenna that would cover a range of a few centimeters, but I see that it is very complicated, RFid was a practical option, it does no...

Hi Viktor, Unfortunately I can't use Arduino, I'm using Microchip PIC16F887, and I understand that as I mentioned in the previous post, it is complicated to design an antenna to couple to the reader and requires equipment that we don't have, but maybe someone in the forum had the knowledge or luck t...

As a comment, I am using Flowcode 7 (I think no one watches the Flowcode7 forum) but the version or program works correctly, the problem is how to extend the detection range of the TAG in low (125khZ) or high frequency (13.56 MHz). I have only tested with 125 khz TAGs, I just ordered some 13.56 MHz ...

Hi Viktor, Thanks. . .I appreciate the help, I will try those options, I think the one that would be the right one is the Arduino one, but I am using the PIC16F887; I have been looking for a solution to this on the internet and I think that perhaps an antenna is the solution, but I know that the des...

More variants, I have isolated the original antenna from the reader.

Hello everyone, I would appreciate if someone could help me :) I'm making a TAG reader with the RFid MFRC522, it works excellent, but I need the TAG to be able to be detected at about 20 cm from the reader, I've tried with different windings and lengths of enameled wire of thin and very thin gauge, ...

Hello, Martin I know it has nothing with the question; I have been in the Matrix forum (Flowcode 3) since 2008, I was taking a look at the topics, I see that Martin (Medelec) is now part of the Matrix Staff, I CONGRATULATE You !!! You are one of the people who is contributing with your knowledge to ...

I tried with a level switch, but I have the idea of making a few devices and I was looking for a way to simplify the manufacturing and speed up the assembly, trying to correct the fault with software. . .but I think it would be the safest option.

This is the flowchart I was using. . . .then add the option SETPOSITION (0, 0) in the sequence of the program when it is waiting for the coin to be deposited to make sure the door does not stay open, that's where the vibration started.

Hi Benj, I know it sounds very sweet :D I use SETPOSITION (0, 0) and then DISABLE SERVO, but sometimes the door opens a little and I wanted that without using a level switch, through programming the door would be kept closed safely. Is there a way to use the function (IF) using some variable (X) to ...

Hello everyone, A question about servos; I am using a servo to open and close a door which releases candy; It works by inserting a coin, activates the servo and opens the door to release a certain amount of candys. The problem I had was that sometimes the door stayed a little open and the candys cam...

Merry Christmas !!!

Hi,

Thanks a lot, now I understand the sleep mode better, you clarified my doubts, I will do more tests, the PIC12F1840 contains the features you mention.

Best Regards !!!

Hi,

Yes, the idea is to put the chip to sleep, the WDT will activate the device after the preset time and continue the operation, erasing continuously in each period of time.

Best Regards !!!

Hi, Thank you very much for your help, use the pic12F1840 just need to configure the programming options window, select the automatic Watchdog mode and enable the Watchdog; With these options selected, I choose the time in which the Watchdog enters; performs the complete program sequence and the PIC...

Thanks Benj.

Hi, I still can't handle SLEEP () mode I'm still trying to work with SLEEP () mode; and if it goes into sleep mode, but I can't wake up, with INT or IOC interrupts; When I add 10 mS to it in the MACRO interrupt it shows me error when compiling and when I use to WDT : WDT MX_CLEAR_WATCHDOG; WDTCONbit...

Hi Stefan,

I appreciate the help, I will eliminating the delay, to see if I can sleep and wake up the PIC correctly without interrupting the correct sequence in the programming.

Thank you very much
Enrique

Hello I have done many different tests, I used the PIC16F1847, I was able to enter the SLEEP mode and later to WAKE UP, but when the PIC wakes up, it just starts the program sequence, it interrupts and starts from the beginning, it does not finish the sequence started; for example, in the published ...