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        Rules\n
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    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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    -titleTs: "'bit':4 'miss':3 'regist':2 'shift':1"
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        \n
        Rules\n
        -----\n
        \n
        1: Be nice.\n
        \n
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    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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        **For questions about component-level electronic circuits, tools and equipment.**\n
        \n
        Rules\n
        -----\n
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        \n
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    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
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    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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        \n
        Rules\n
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    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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        \n
        Rules\n
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    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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    +domain: Proxies\__CG__\App\Entity\Domain {#1912 …}
    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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    +domain: Proxies\__CG__\App\Entity\Domain {#1912 …}
    +slug: "Shift-register-missing-bits"
    +title: "Shift register missing bits"
    +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
    +body: """
      Hey friends,\n
      \n
      I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
      \n
      The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
      \n
      ```\n
      \n
      <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
      </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
      </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
      </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
      </span><span style="color:#323232;">    usleep(10);\n
      </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
      </span><span style="color:#323232;">\n
      </span><span style="color:#323232;">    delay(10)\n
      </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
      </span><span style="color:#323232;">} \n
      </span>\n
      ```\n
      \n
      Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
      """
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          \n
          Rules\n
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      +slug: "Shift-register-missing-bits"
      +title: "Shift register missing bits"
      +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
      +body: """
        Hey friends,\n
        \n
        I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
        \n
        The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
        \n
        ```\n
        \n
        <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
        </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
        </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
        </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
        </span><span style="color:#323232;">    usleep(10);\n
        </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    delay(10)\n
        </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
        </span><span style="color:#323232;">} \n
        </span>\n
        ```\n
        \n
        Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
        """
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        +name: "askelectronics@discuss.tchncs.de"
        +title: "askelectronics"
        +description: """
          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
          \n
          3: No commercial stuff, buying, selling or valuations.\n
          \n
          4: Be safe.\n
          \n
          ---
          """
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      +slug: "Shift-register-missing-bits"
      +title: "Shift register missing bits"
      +url: "https://discuss.tchncs.de/pictrs/image/7da4f08e-8d93-4cf1-99c9-22f2aea08d32.png"
      +body: """
        Hey friends,\n
        \n
        I have a two [daisy chained shift registers](https://i.imgur.com/tZBQ45e.png) ([74AHC595](https://www.diodes.com/assets/Datasheets/74AHC595.pdf)) which are controlled via an ESP32. I want to set one output to high at a time before switching to the next.\n
        \n
        The code seems to work, but the outputs O_9 and O_10 are not [staying high](https://i.imgur.com/v5OOE1K.png) ([zoom](https://i.imgur.com/VpMbdW3.png)) after setting them, whereas all the other ones are working fine. This is the used code snipped:\n
        \n
        ```\n
        \n
        <span style="color:#323232;">pinMode(SHIFT_OUT_DATA, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_CLK, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_N_EN, OUTPUT);\n
        </span><span style="color:#323232;">pinMode(SHIFT_OUT_LATCH, OUTPUT);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">digitalWrite(SHIFT_OUT_N_EN, LOW);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">uint16_t input_bin = 0b1000000000000000;\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">for(int i=0; i&lt;17; i++){\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    byte upper_byte = input_bin >> 8;\n
        </span><span style="color:#323232;">    byte lower_byte = input_bin &amp; 0x00FF;\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, LOW);\n
        </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, lower_byte);\n
        </span><span style="color:#323232;">    shiftDataOut(SHIFT_OUT_DATA, SHIFT_OUT_CLK, MSBFIRST, upper_byte);\n
        </span><span style="color:#323232;">    usleep(10);\n
        </span><span style="color:#323232;">    digitalWrite(SHIFT_OUT_LATCH, HIGH);\n
        </span><span style="color:#323232;">\n
        </span><span style="color:#323232;">    delay(10)\n
        </span><span style="color:#323232;">    input_bin = input_bin>>1;\n
        </span><span style="color:#323232;">} \n
        </span>\n
        ```\n
        \n
        Is there anything I’m doing wrong, or any idea on where the problem may lie? I’ve already tried looking for shorts and other error sources, but the design was manufactured on a PCB and no assembly issues are noticeable.
        """
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      -titleTs: "'bit':4 'miss':3 'regist':2 'shift':1"
      -bodyTs: "'/assets/datasheets/74ahc595.pdf))':17 '/tzbq45e.png)':13 '/v5ooe1k.png)':59 '/vpmbdw3.png))':63 '0':116 '0b1000000000000000':112 '0x00ff':131 '1':170 '10':52,158,165 '17':118 '74ahc595':14 '8':125 '9':49 'alreadi':189 'anyth':173 'assembl':208 'bin':111,124,130,167,169 'byte':120,122,126,128,146,156 'chain':8 'clk':89,143,153 'code':41,79 'control':20 'daisi':7 'data':84,140,150 'delay':164 'design':200 'digitalwrit':102,132,159 'en':95,106 'error':196 'esp32':23 'fine':74 'friend':2 'hey':1 'high':31,56,163 'i.imgur.com':12,58,62 'i.imgur.com/tzbq45e.png)':11 'i.imgur.com/v5ooe1k.png)':57 'i.imgur.com/vpmbdw3.png))':61 'idea':180 'input':110,123,129,166,168 'int':114 'issu':209 'latch':100,135,162 'lie':186 'look':191 'low':107,136 'lower':127,145 'm':175 'manufactur':202 'may':185 'msbfirst':144,154 'n':94,105 'next':39 'notic':211 'o':48,51 'one':28,71 'output':29,47,85,90,96,101 'pcb':205 'pinmod':81,86,91,97 'problem':184 'regist':10 'seem':42 'set':27,65 'shift':9,82,87,92,98,103,133,138,141,148,151,160 'shiftdataout':137,147 'short':193 'snip':80 'sourc':197 'stay':55 'switch':36 'time':34 'tri':190 'two':6 'uint16':108 'upper':121,155 'use':78 'usleep':157 've':188 'via':21 'want':25 'wherea':67 'work':44,73 'wrong':177 'www.diodes.com':16 'www.diodes.com/assets/datasheets/74ahc595.pdf))':15 'zoom':60"
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    +body: "What does shiftDataOut do? You loop over it but you give the whole byte to it anyway in each loop."
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