Видео

I'm still struggling on the most optimal way to leverage GitHub for my videos. In most cases, it amounts to having just a few files for each video. However, GitHub is so rich that beginners might get the wrong idea in how to use GitHub efficiently. For now, the best way is to send you the file that I used. Drop me a forwarding address to my address (channel name using Google mail) and I'll send you the file(s) that I used in the demonstrations. I will definitely leverage GitHub for these videos in the near future.

The link to the requested file is in the Description section. You are welcome to browse the baqwas/giga repository at GitHub too!

Thank you Matha, will see how we go.@@MathaGoram

The demonstration was a proof-of-concept for FTC CENTERSTAGE application. It uses the FtcRobotController SDK in an Android environment with Java code. I will work on more Tello EDU examples where I will use Python with OpenCV (where AprilTag support exists). Stay tuned.

The GIGA board has two dedicated CAN bus pins: CAN_H (PD5) and CAN_L (PD4). It does not require an external transceiver! Let me explore because I have never tried it before. Thanks for your question.

@@MathaGoram thank you so much for respone . I have seen some boards build in can bus for C or C++ can be used but the micropython not "include" the class CAN. for example stm32411, 12, esp32 and others ... I'm working whit CAN bus protocol using stm32f405 , 407 . I'm looking for some MCU faster than F4 series , you will help me so much if check direct if the GIGA support uPy CAN THANKS 👍🏻

@@hpsmexico3497, as you are well aware, CAN Bus is dominated by OBD and industrial strength ($$) sensors. Most CAN Bus enabled products for IoT use an interface module (not needed for GIGA) to work with I2C & SPI on the sensors themselves - not really a good way for me to introduce the topic. I've ordered a 2nd GIGA so that I can demonstrate a GIGA-to-GIGA communication using pure CAN Bus. It'll take a few weeks to get there since the product is on back order. Stay tune. Thanks.

Glad it was helpful! Let's hope that the next generation picks up the baton to bring their ideas to fruition.

I have not used SquareLine Studio. It makes UI development faster (i.e. quicker to release a solution - faster to market). There is no reason why it cannot be leveraged with GIGA Display Shield. It supports LVGL and therefore even with roadblocks, workarounds can be made. Of course, there are other (i.e. pure FOSS) approaches too. Let me prepare something for your review. Thanks for the great idea. Regards.

Hello, @GioGogiberidze! The nearest one can do to design a UI with SLS is described here docs.squareline.io/docs/dev_env/animation/#add-property. Let me know if this interests you & I will try to evaluate it. Otherwise, I have to move on to other exercises with the GIGA & Display combo. I have drafted the basic requirements for media player UI but the gaping hole in my presentation is the "big rectangle" in the middle for the MP4 or related files. 😀

I've updated the description section of the video with some options for you. If you need the specific one in the video, send me your email address and I'll drop you the corresponding STL file. Let me know if you have any other question or suggestions. Regards.

thanks for you kind support @@MathaGoram

谢谢。Xie xie! 😃

I'm in a position to buy several tello TTs but yeah haven't found much resources out there about swarming. There is another brand called litebee which claims to do this quite easily but you need to buy their bulk version (10 drones) which is quite expensive. I just want to test swarming for education! What other IoT devices do you have?

@@samongandroid, the sensors planned for the HAT are the common environmental sensors (temp/humidity, gas, sound, light, etc.).

Thank you. Please don't hesitate to ask any question that you may have. It has been a long time since I worked on this project. Your question(s) will help me (in due course) to ensure that the solution is current and remains practical for beginners.

The Serial Monitor output is displayed in the Console Log window (change from prev release). Only Serial Plotter works as before (but with some extra features). Also, never never hesitate to post questions. That is the only way I will learn too if I do not know the answer.

@@MathaGoram Hello. Yes my esp32, stm32 and undo display properly, just not the Giga? Driving me nutty : )

@@drakkorvladimir4012, there have been several suggestions from end-users to improve the IDE 2.x Serial Monitor capabilities. Will Arduino respond is the big question! For time-series data perhaps the Serial Plotter may help in a limited way.

@@MathaGoram So it's not just me then? Cool. Thanks again : )

I think that my Giga disconnects the comm port after uploading sketch and this is causing no serial output? Any ideas on why it disconnects?@@MathaGoram

Idk where that came from...

You will have to set the USB port permissions using udev (in Ubuntu). #!/usr/bin/env bash arduino_renesas_core_rules () { echo "" echo "# Renesas based Arduino Santiago/Portenta H33 bootloader mode UDEV rules" echo "" cat <<EOF SUBSYSTEMS=="usb", ATTRS{idVendor}=="2341", MODE:="0666" EOF } if [ "$EUID" -ne 0 ] then echo "Please run as root" exit fi arduino_renesas_core_rules > /etc/udev/rules.d/60-arduino-renesas.rules # reload udev rules echo "Reload rules..." udevadm trigger udevadm control --reload-rules There is an equivalent technique for Windows.

@@MathaGoram Thank you very much. There are only very few people that will actually answer questions and help someone. Much respect to you.

@@MathaGoram I have another question....I don't get a access denied or anything, I get DFU? Maybe this is the same as you mentioned? Just checking. Thank you.

@@drakkorvladimir4012, I'll update the notes section with more details on how to proceed on Linux platforms. The equivalent steps must be performed under Windows too but I've never tried those. I'll upload later this evening. Thanks for your patience. We work together to get you up and running. Regards.

@@MathaGoram Thank you.

Yes of course! Let me know if you run into issues. Thanks.

​@@MathaGorami have a problem buddy

1. Install dfu-util if not present. Be careful about Windows permissions for dfu-util on GIGA port. 2. Download firmware GIGAR1_MP_FW.dfu 3. Use dfu-util with firmware to flash GIGA for micropython 4. Use recommended IDE (Thonny or Arduino Lab for Micropython whichever you have installed as a prerequisite). You'll have to re-flash to switch between micropython and Arduino sketches. Status remains constant, however, if the power is switched off-on. Post any further questions you have and I'll try to find answers for you. Regards.

Please take a look at ruclips.net/video/EEJB_KGO3DE/видео.html and let me know if you have further questions (I'm having some A/V challenges at my end and therefore I rushed this release). There are a few things I have skipped for now because I would like to do a drill-down in a later tutorial. Regards.

Does the Spressence not support Float and Double?

The API is not limited to mobile apps. (I had just embarked on learning Android Studio) The API accepts handwritten images but my presentation is limited to that illustrated. Slightly different method would have to be invoked. Thanks for your questions. Regards.

@@MathaGoram may i know how to accept the handwritten image? what is the method you metioned?

Hello @@kaiw1619, are you able to "write" on the screen in the magenta colored field? The example, for demonstration purposes, uses the locale "BN" and you will have to set the locale to any other supported (a very comprehensive list) language if you want your handwriting to be interpreted in that language. Perhaps, I am not understanding your question. Please clarify if you wish. Thanks.

Every Arduino product cannot please everyone. (I gave up giving up griping and took some time off). Too many specialized solutions in the broader market to meet specific needs economically. Fully understand your viewpoint. Regards.

Would love to receive suggestions on what Arduino GIGA topics would be useful to the wider audience. Thanks again for your viewing time. Regards.

​@@MathaGoram I don't know what the average would like, but I'd be interested in something like speed tests, stuff with the audio jack and usb host port anda display or camera. I probably wont buy the Giga, because I just dont need anything that powerfull and I'm interessted in the "new" stuff the other arduinos dont have.

Excellent question! Naturally it is all dependent on the interfaces. It would be impractical to expose the Ethernet Shield directly to the WAN (without a router). You may want to explore LoRaWAN for your question. I had hoped to make a very, very simple demo on LoRaWAN but I've fallen behind. Regards.

@adhim, unfortunately the W5500 is unsuitable for your proposed interface since it is an Ethernet interface. There are other technologies more suitable for your intended application (e.g. LoRa and LoRaWAN). Arduino has some excellent modular units for this purpose especially since you will presumably be dependent on software libraries. These technologies are becoming pervasive in distance communications at very low power consumption rates. The other technology ESP32 may not be an option for you at distances > 1km. Hope this helps to steer you in the right direction.

@@MathaGoram oohh..I've tried using Lora ra-02 sx1278 but the range is why it can only be 100 meters. does the sender have to be in a high location?

@@adhimsuryahidayat8921 100 meters is too short; there must be other factors at work here that results in this limited range. As usual, the libraries and communication classes affect the results. I haven't used the SX1278 but perhaps I will try to set aside some time, explore and report in a future video. Thanks for the ideas. Regards.

@@MathaGoram ok..do you have any good lora type references? thank you very much for your time

@@adhimsuryahidayat8921 Unfortunately, I haven't spent much time with LoRa. However, thanks to your interest I will look into this shortly. The usual fork in the road - stick to Arduino or evaluate alternate options! I will try to publish some conclusions quickly in the interests of the wider audience. Regards.

More practical solution to address large number of LEDs individually.

How many LEDs do you want to drive? The solution uses Arduino MCU but the power requirements impose the need for a source that the Arduino alone cannot provide. You can drive a "LEDs" (do a simple sizing calc for Amps based on the number of LEDs) but not the number shown in the video.

أن تسأل هو أن تتلقى شكرا Check out GitHub repository under baqwas/odml

@@MathaGoram thanks

Any UVC interface supported camera will work. Regards.

​@@MathaGoram I can't use CameraSelector.DEFAULT_EXTERNAL_CAMERA, can you give me some examples?

@@ptdong With all due respect you may be better off posting your question at groups.google.com/a/android.com/g/camerax-developers because I just tried a MOKOSE external webcam and it worked. Sorry for deflecting your question but there is also an active support group for CameraX at the android developer forum. Hope you get your issue resolved - developer.android.com/training/camerax. Regards.

@@ptdong Try camerax-developers at android dot com,

Hello @Saing, I will upload the repository to GitHub today. Thanks.

@@MathaGoram wow! thanks

Send me an email to baqwas via Google mail.

Haven't measured the temperature on three different shields (one on Mega & other two on UNOs). There is naturally some heat dissipation but nothing that alarms me. These shields are running 24x7. Interestingly, two have DHTxx sensors but I never thought about measuring shield temperature. Perhaps I should think about doing that exercise as a follow up with an extended DS18B20. Thanks.

@@MathaGoram I added a small piece of aluminum bracket (as heatsink) on top of the W5100 chip, and the temp went down by ~10F (max measured after ~4hrs, 112F). Just very curious why this chips runs hot like this. (separately, room temp is ~76F).

@@agustinguzman6375 I looked at the datasheet for the W5100 chip. It consumes 183 mA (max) at 3.3V. That is rather high (even if that is the design intent by Wiznet). Your heat sink solution should be emulated (and applauded). Thanks for sharing.

@@MathaGoram wow, that is high for such a small IC package. if the chip was a BGA, I'd say it was sweating it's balls off... but it's not, so the joke doesn't quite apply.

Yes, the Arduino Ethernet Shield 2 is compatible with Arduino Mega 2560 Rev3 board. Be wary of clones especially with respect to firmware. Obviously the clones flourish owing to MSRP for the "genuine" boards. Rgds.

Try one of the HiLetgo boards. The tech support is responsive. Rgds.

You have the right approach (viz. re-install) when the upgrade target is itself a very simple installation. Many things can and do go wrong if the steps are not followed "properly" during the upgrade. However, when user application packages have to be reinstalled, unless one has kept a careful repository to restore configuration settings, it may be more difficult to put Humpty Dumpty back together again. It is more a reflection on the robustness of the two approaches. Your point is taken.

Hello Anil, thanks for your suggestion. I'll update it shortly. Kind regards.

@@MathaGoram thanx ☺️

I would strongly recommend that you try it with the Edge Impulse solution. I'll do the same mid-March. Regards.

Я не знаком с b0 для Arduino/ESP8266; используя только D2/GPIO4.

I've used the Alitove 20A unit (but it should be encased for domestic use). Pay special attention to the Amp rating for your preferred unit to drive each and every LED adequately without significant dimming at the end away from the power input. Regards.

@@MathaGoram Thanks for this.

@@Richie_ Also, pay attention to the SWG of the conductor wires. At 20A, you will need "thick" wires the exact rating of which should be your experiment;) Just note that I did fry the insulation of 26AWG conductors and therefore my recommendation for 300 LEDs would be to go thicker. Regards.

@syaduinotech. If you do not have "physical" visibility to a MAC address, you can assign one arbitrarily (in Arduino world :)) keeping the xx:xx:xx:xx:xx:xx format intact but avoiding any conflict with other Ethernet devices in your LAN sub-net. All genuine Arduino Ethernet Shields have the prefix A8:61:0A:xx:yy:zz. All Wiznet shields have the prefix 00:08:DC:xx:yy:zz. These prefixes are licensed (i.e. the companies "register" their prefixes under licensed agreements). However, if you have only your own devices in the LAN sub-net and you are completely sure that there will be no MAC address conflict you can use just about anything compliant with the format. Network management software simply won't be able guess the licensee (which should not be an issue for dev/test LAN farms). For example, use 00:08:DC:5E:B2:C2 and if you have only one "clone" ETH shield, it will work for you. I rely on DHCP for my LAN and therefore do not need to set the MAC address explicitly. However, I have to use Ethernet.maintain() in the loop() section repeatedly to renew the lease (something that desktop users are probably unaccustomed to). On the flip side, as you are probably already aware, if you are not using DHCP then you will have to set the MAC address explicitly. Use the one that I suggested above. Network monitoring software will report the interface as a Wiznet device. You can change the trailing bits, 5E:B2:C2, for additional network devices. Hope this helps. Let me know if you need further help on this topic. Kind regards.

It does if you know anything about arduino, dont make fun of people who are more intelligent than you because you dont understand the words they use.

The examples are at github.com/FastLED/FastLED/tree/master/examples. No changes to any line of code other than the model/config setting for the strips that I have used. Of course, I did some trivial/non-essential documentation changes for future personal reference purposes. In approx. 3 months, I plan to revisit this library for use with Arduino Nano RP2040 Connect. In the interim, I can try to answer specific questions that you may have but please understand that reddit/fastled can offer you more experienced assistance.

@@MathaGoram Thanks