riks

Hi,

I don't see any examples how to extend callback listeners or create new ones. Just an example with no meaning in Java from the documentation.

device.addExampleListener(new BrickletServoV2.ExampleListener() {
    public void property(int value) {
        System.out.println("Value: " + value);
    }
});

For the servo there a 2 OOTB examples, but I want to create my own for getCurrentPosition or current used on the servo as example. How do I implement this properly ?

Regards,
Rik

Hi rtrbt,

yes indeed. I totally forgot the PINOUT is different compared to older models.

Works fine now with these mapping. I can see my bricklets.

Thanks for your help ! Maybe you put a section in the Doc. I will not be the only one I suppose that runs a Raspberry Pi5 with a HAT and it is supported by Tinkerforge.

Regards,
Rik

Hi rtrbt,

I have update firmware and daemon to this version. It connects but does not show me any bricklets. Same behaviour I had on my Pi4, so I added to the /etc/brickd.conf these mapping

bricklet.group0.spidev = /dev/spidev0.0

bricklet.group0.cs0.driver = gpio
bricklet.group0.cs0.name = gpio23
bricklet.group0.cs0.num = 23

bricklet.group0.cs1.driver = gpio
bricklet.group0.cs1.name = gpio22
bricklet.group0.cs1.num = 22

bricklet.group0.cs2.driver = gpio
bricklet.group0.cs2.name = gpio25
bricklet.group0.cs2.num = 25

bricklet.group0.cs3.driver = gpio
bricklet.group0.cs3.name = gpio26
bricklet.group0.cs3.num = 26

bricklet.group0.cs4.driver = gpio
bricklet.group0.cs4.name = gpio27
bricklet.group0.cs4.num = 27

bricklet.group0.cs5.driver = gpio
bricklet.group0.cs5.name = gpio24
bricklet.group0.cs5.num = 24

bricklet.group0.cs6.driver = gpio
bricklet.group0.cs6.name = gpio7
bricklet.group0.cs6.num = 7

bricklet.group0.cs7.driver = gpio
bricklet.group0.cs7.name = gpio6
bricklet.group0.cs7.num = 6

bricklet.group0.cs8.driver = gpio
bricklet.group0.cs8.name = gpio5
bricklet.group0.cs8.num = 5

After a reboot I get this in the /var/log/brickd.log and deamon is shutting down.

2024-01-18 10:56:42.884905 <I> <bricklet_stack_linux.c:87> Using spidev backend for Bricklets (unsupported suffix 5 after 'Raspberry Pi' in /proc/device-tree/model)
2024-01-18 10:56:42.884981 <E> <gpio_sysfs.c:77> Could not write to '/sys/class/gpio/export' to export GPIO 22: EINVAL (22)
2024-01-18 10:56:42.884988 <E> <bricklet_stack_linux_spidev.c:78> Could not export gpio22: EINVAL (22)

Any idea's ?

Regards,
Rik

Does anyone tried to put the Hat on a Raspberry Pi working ?

I get this error in the /var/log/brickd.log

2024-01-16 18:06:36.731765 <I> <main_linux.c:375> Running on Linux system (sysname: Linux, release: 6.1.0-rpi6-rpi-2712, version: #1 SMP PREEMPT Debian 1:6.1.58-1+rpt2 (2023-10-27), machine: aarch64)
libusb: warning [libusb_init] installing new context as implicit default
2024-01-16 18:06:36.735775 <I> <bricklet.c:521> Using bricklet.* section in config file
2024-01-16 18:06:36.735783 <I> <bricklet.c:530> Found Bricklet port A (spidev: /dev/spidev0.0, driver: gpio, name: gpio23, num: 23)
2024-01-16 18:06:36.735835 <I> <bricklet_stack_linux.c:129> Using BCM2835 backend for Bricklets (Raspberry Pi detected)
2024-01-16 18:06:36.735855 <E> <vcgencmd.c:185> Could not open /dev/vchiq for writing: ENOENT (2)
2024-01-16 18:06:36.735858 <E> <bricklet_stack_linux_bcm2835.c:65> Could not read Raspberry Pi core_freq config

Thanks Photron,

you are the best 😀.

Press key to exit
Found tag of type 2 with ID [0x04 0x66 0xD7 0xE2 0x1D 0x70 0x80]
Found tag of type 2 with ID [0x04 0x6B 0x4C 0x22 0xBC 0x73 0x81]
Found tag of type 0 with ID [0xAD 0x19 0xBE 0x49]

Regards,
Rik

Hello guys,

I am trying out the standard java example of ExampleScanForTags. It scans a lot every second. Actually I just need when the ID changes and not if not. Is there some code that does that ?

Same way as the brick viewer shows it. Only when it changes.

Regards,
Rik

Yes...thank you very much.

Regards,
Rik

This link is dead. https://download.tinkerforge.com/3d/TBD/TBD.step

Does someone download this before and is willing to share ?

Regards,
Rik

Hi Seismic,

thanks for the info. Good to know.

Cheers,
Rik

Hi there,

Is there any documentation how to connect those two ? On the Silent stepper I got 4 cables and on the servo 3 cables. Which goes where from to where ?

Any help appreciated.

Regards,

Rik

Hi,

I am trying to set the min/max memory my java program can use on the red brick.

There is not a lot of information provided how to set it.

I specified JVM Options:  -Xms 64M -Xmx128M

Invalid initial heap size: -Xms 64M -Xmx128M

Error: Could not create the Java Virtual Machine.

Error: A fatal exception has occurred. Program will exit.

What should be the right syntax for this ?

Thanks,
Rik

Moin,

ich habe nur einen Master Brick und 4 Sachen verbunden. Das musste doch eigelich gehen. Wieviel braucht einen normalen Java program um die Sensoren met 1Hz aus zu lesen ?

Mein setup ist :

1. Master brick 2.1
   1. Segment Display 4 x 7 Bricklet
   2. Motion Detector Bricklet
   3. Ambient Light Bricklet 2.0
   4. Temperature Bricklet

MfG,
Rik

Ist auch mehr fuer den Staff hier ob dss normal ist 😀

TinkerTeam ist das einen bekanntes Problem oder neu ?

Ich habe 1.15 auf den Red Brick und ich habe das gleiche. Wenn ich dann auch das Java program laufen lasse dan ist CPU 100% und wird fast nicht mehr idle.

Ist ueber 30% Last fuer den brickd normal ?

Und die CPU freq ist maximal

Every 1.0s: cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq                                                                                                   red-brick: Thu Mar 26 16:58:26 2020

1008000

Es wunscht sich so gerne einen neuen(siehe attachment)

Gibt es schon einen neuen Releasedatum. 3-4 Wochen sind schon lange vorbei.