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What touchscreen are you using? Many require special drivers and edits to actually display, let alone work like a mouse. For example, an Elecrow 5" touchscreen needs this at the end of Config.txt: # --- added by elecrow-pitft-setup --- hdmi_force_hotplug=1 max_usb_current=1 hdmi_drive=1 hdmi_group=2 hdmi_mode=1 hdmi_mode=87 hdmi_cvt 800 480 60 6 0 0 0 ...


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tl;dr: Q: What should I do next? Please run the following command, and edit your question to include the results: $ pgrep -a dhcpcd I think the only real misstep in your procedure was following this cool guide. The fact that this cool guide doesn't have a date stamp anywhere on the page is the only real clue that it is FUBAR. But documentation was never ...


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If you include dhcp in interfaces you break dhcpcd networking. Restore to standard (or just delete it - it does nothing). Don't follow ancient random tutorials. Try any of the official guides. See How to set up networking/WiFi


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I have the same issue with my Pi Zero board, I compiled a new kernel image and copy to SD card, when it boots up, the screen displays "Firmware Bug: Bootloader left irq enabled bank 1 irq 9", and nothing else displays. Wait a few more seconds, the QT application runs and the Wi-Fi connection also works. So I think this is not a problem for my board....


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From a quick search on FOTEK 40A SSR, the data below in Figure 1 and Figure 2 was located. From these specifications, it appears that you do not need the 2N2222 transistor. Figure 2 states that only 2.4V are required to turn the SSR "ON", and 1.0V to turn it "OFF"; further that the current needed (Trigger Current) is 7.5 mA. (The ...


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It seems you misunderstood the QEMU network configuration. I think your command line instantiates two network interfaces, one with netdev/device usb-net, another with two nic's. Is this what you really meant to do? The machine must have been working network through first NIC (from device usb-net/netdev), but you've set up port forwarding in the second NIC ...


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Newer drivers are at https://github.com/aircrack-ng/rtl8812au and if you read the readme, you'll find what you're looking for. 32 bit kernel For 32 bit ARM CPU + kernels (e.g. running uname -m gives armv7l) it is: sudo apt install git dkms raspberrypi-kernel-headers git clone https://github.com/aircrack-ng/rtl8812au.git cd rtl8812au sed -i 's/...


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I moved the USB connector from my 5V audio supply adapter to RPI USB port. That eliminated the buzz totally. The problem may be same for you, if you take the power from two separate 12V to 5V power supplies.


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I moved the USB connector from adapter to RPI USB port. The 50Hz sound disappeared. This works for 5V powered audio. Some countries use 60Hz power supply.


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I think (unless you have not corrected it yet) you have your wires wrong. The green one is the signal (data) and you have it connected to the 3V3. Source: DFRobot - SEN0137 DHT22 Temperature and humidity module Hint: Try running it in the loop like in the dht_simpletest.py - as @Milliways mentioned the python library is not stable. Running in the loop and ...


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If you are serious about programming C# on the Raspberry Pi it should be noted that running an IDE on the Pi itself is not the best choice. Sooner or later you want to have a fast workflow, debugging possibilities and convenience. I wrote a little walkthrough on how to set this up using Windows 10 and Visual Studio 2019 Community. C-Sharp-programming-setup-...


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