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Very good video to introduce the board. However, please allow me point it out that the board in this video is a copy version. ELECHOUSE designed the board and now has upgraded the module to V4. V3 was widely counterfeited in China. Now even the NXP PN532 chip was copied. That's why you could buy it much cheaper than the chip price in NXP.
I really like the use of a transformer to secure the current of the optokopplers diode. However I dislike the uses of blocking funktions like delays or serial.write in a interrupt service routine. I recommend to seta flag in the ISR and to handle this in the main loop
Hello, can you please tell me why my receiver lora module stops receiving the signal after I change the input from pot, and it happens only when I Connect servo to it
Is there anything specific to be done with the Esp32 DevKit V1 board, to use the nRF24L01+PA+LNA, because I've done it in several ways and didn't connect for anything?
Think about the locations where wifi is not available. This module supports 4G LTE. I have used it in some intermediate and advanced level projects. Check the esp32 playlist.
Nice work! Could you help me? Chinese calliper data reading pi pico micropyton is the few lines of code that do this! Unfortunately, I couldn't find a sample example of such a thing anywhere!
Nice work! Could you help me? Chinese calliper data reading pi pico micropyton is the few lines of code that do this! Unfortunately, I couldn't find a sample example of such a thing anywhere!
Great Video! Why did you isolate both, the EC and the PH Probe? I understand from a dfrobot video, it is sufficient to isolate one of them. As long as the two probes do not have common lines, one is fine. Also, did you experiment with switchen one probe off when testing with the other one? For me this worked well in one direction - switching PH Probe off, the EC Probe had proper values. The other way round it took a while (20 sec) waiting time for it to work
Hello Done all the steps, everything ok STM32 now the green LED flashes, but the end of the loading, gives me this writing in red? maple_loader v0.1 Resetting to bootloader via DTR pulse Reset via USB Serial Failed! Did you select the right serial port? Searching for DFU device [1EAF:0003]... Assuming the board is in perpetual bootloader mode and continuing to attempt dfu programming... dfu-util - (C) 2007-2008 by OpenMoko Inc. This program is Free Software and has ABSOLUTELY NO WARRANTY Couldn't find the DFU device: [1EAF:0003] timeout waiting for COM14 serial What does this writing mean?
I'm pretty sure the ground of the 12V-connector and the ground of the 7805 voltage regulator should be connected in the schematic at 9:21, right? Otherwise, I don't see how the circuit would ever receive power. Other than that, this video is a great source of information!
I am using this very same sensor like yours. I used 12v pump as well to maintain constant pressure however I am getting inaccurate readings. Should the sensor be above the pump? And is there any recommended distance from the pump to the sensor for a more accurate readings? Please advise me if you can 😊
