Need your help
Tongmumu-i opened this issue · 13 comments
Tongmumu-i commented
Dear blogger:
I'm a college student from China. I made a machine by myself according to your steps. After the assembly is completed and the firmware is burned, it can't be displayed normally. It's just a white screen. I bought the left and right components according to the BOM provided by you. Can you help me solve this problem? If you can, I hope you can contact me. Thank you!
Mailbox: 823878209@qq.com
zapta commented
Hi 823878209, can you post here a picture of your build?
Tongmumu-i commented
------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 上午9:59
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Dear zapta, hello, first of all thank you for replying to me.
According to the open source document you posted on GitHub, I found the Gerber file and completed the PCB proofing. I purchased all the components according to the BOM. After I assembled as required, I burned the program and my LCD screen was running. The correct content is not displayed on the screen, and he is always in a white screen state.
After the assembly was completed, I burned the program, and it ran for the first time, and a part of the content was displayed on the LCD screen but it was incomplete, and then I ran it again and the situation in the picture below appeared.
Since I didn’t get in touch with you in time, I thought it was a problem with the LCD screen. I contacted the LCD manufacturer. They said that the LCD screen I purchased might be different from your model. I carefully compared the BOM table. The problem, I also showed them and they said there was no problem,
Finally, the LCD screen manufacturer told me that I need to contact you, take a look at the photo on the back of the LCD screen you are using, and see how the components on it are distributed.
This is my confusion and problem. I can't find the problem with my machine, so I ask you for advice and study.
Tongmumu-i commented
Dear zapta, hello, first of all thank you for replying to me.
According to the open source document you posted on GitHub, I found the Gerber file and completed the PCB proofing. I purchased all the components according to the BOM. After I assembled as required, I burned the program and my LCD screen was running. The correct content is not displayed on the screen, and he is always in a white screen state.
After the assembly was completed, I burned the program, and it ran for the first time, and a part of the content was displayed on the LCD screen but it was incomplete, and then I ran it again and the situation in the picture below appeared.
Since I didn’t get in touch with you in time, I thought it was a problem with the LCD screen. I contacted the LCD manufacturer. They said that the LCD screen I purchased might be different from your model. I carefully compared the BOM table. The problem, I also showed them and they said there was no problem,
Finally, the LCD screen manufacturer told me that I need to contact you, take a look at the photo on the back of the LCD screen you are using, and see how the components on it are distributed.
This is my confusion and problem. I can't find the problem with my machine, so I ask you for advice and study.
Tongmumu-i commented
------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 上午9:59
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Dear zapta, hello, first of all thank you for replying to me.
According to the open source document you posted on GitHub, I found the Gerber file and completed the PCB proofing. I purchased all the components according to the BOM. After I assembled as required, I burned the program and my LCD screen was running. The correct content is not displayed on the screen, and he is always in a white screen state.
After the assembly was completed, I burned the program, and it ran for the first time, and a part of the content was displayed on the LCD screen but it was incomplete, and then I ran it again and the situation in the picture below appeared.
Since I didn’t get in touch with you in time, I thought it was a problem with the LCD screen. I contacted the LCD manufacturer. They said that the LCD screen I purchased might be different from your model. I carefully compared the BOM table. The problem, I also showed them and they said there was no problem,
Finally, the LCD screen manufacturer told me that I need to contact you, take a look at the photo on the back of the LCD screen you are using, and see how the components on it are distributed.
This is my confusion and problem. I can't find the problem with my machine, so I ask you for advice and study.
zapta commented
Hello 823878209,
I like your build.
Here is a video that shows how my board behaves https://imgur.com/SCAhCDZ.
It does not matter if the TFT is connected or not.
Do you get the same LED blinking pattern and similar output on the
terminal?
Zapta
…On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***> wrote:
------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 上午9:59
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Dear zapta, hello, first of all thank you for replying to me.
According to the open source document you posted on
GitHub, I found the Gerber file and completed the PCB proofing. I purchased
all the components according to the BOM. After I assembled as required, I
burned the program and my LCD screen was running. The correct content is
not displayed on the screen, and he is always in a white screen state.
After the assembly was completed, I burned the
program, and it ran for the first time, and a part of the content was
displayed on the LCD screen but it was incomplete, and then I ran it again
and the situation in the picture below appeared.
Since I didn’t get in touch with you in time, I
thought it was a problem with the LCD screen. I contacted the LCD
manufacturer. They said that the LCD screen I purchased might be different
from your model. I carefully compared the BOM table. The problem, I also
showed them and they said there was no problem,
Finally, the LCD screen manufacturer told me that I
need to contact you, take a look at the photo on the back of the LCD screen
you are using, and see how the components on it are distributed.
This is my confusion and problem. I can't find
the problem with my machine, so I ask you for advice and study.
—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
<zapta/simple_stepper_motor_analyzer#8 (comment)>,
or unsubscribe
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.
Tongmumu-i commented
Thank you very much for your help. I just watched your video.
The LED working status of my device is the same as your video.
I just tried to use the serial port assistant to read the information of the device.
The information shown in the video, but my LCD screen still does not display any information, is there something wrong with my LCD screen?
I also need to ask you, do the three BIN files in the open source file have any different functions? (Firmware-2021-02-01, firmware-2021-02-01, firmware-2021-02-01)
…------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 晚上10:32
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Hello 823878209,
I like your build.
Here is a video that shows how my board behaves https://imgur.com/SCAhCDZ.
It does not matter if the TFT is connected or not.
Do you get the same LED blinking pattern and similar output on the
terminal?
Zapta
On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***> wrote:
> ------------------ 原始邮件 ------------------
> 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&gt;;
> 发送时间:&nbsp;2021年5月13日(星期四) 上午9:59
> ***@***.***&gt;;
> ***@***.******@***.***&gt;;
> 主题:&nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
>
>
>
>
>
> Dear zapta, hello, first of all thank you for replying to me.
>
> &nbsp; &nbsp; &nbsp; According to the open source document you posted on
> GitHub, I found the Gerber file and completed the PCB proofing. I purchased
> all the components according to the BOM. After I assembled as required, I
> burned the program and my LCD screen was running. The correct content is
> not displayed on the screen, and he is always in a white screen state.
>
>
> &nbsp; &nbsp; &nbsp; After the assembly was completed, I burned the
> program, and it ran for the first time, and a part of the content was
> displayed on the LCD screen but it was incomplete, and then I ran it again
> and the situation in the picture below appeared.
>
>
> &nbsp; &nbsp; &nbsp; Since I didn’t get in touch with you in time, I
> thought it was a problem with the LCD screen. I contacted the LCD
> manufacturer. They said that the LCD screen I purchased might be different
> from your model. I carefully compared the BOM table. The problem, I also
> showed them and they said there was no problem,
>
>
> &nbsp; &nbsp; &nbsp; Finally, the LCD screen manufacturer told me that I
> need to contact you, take a look at the photo on the back of the LCD screen
> you are using, and see how the components on it are distributed.
>
>
> &nbsp;&nbsp; &nbsp; &nbsp; This is my confusion and problem. I can't find
> the problem with my machine, so I ask you for advice and study.
>
> —
> You are receiving this because you commented.
> Reply to this email directly, view it on GitHub
> <zapta/simple_stepper_motor_analyzer#8 (comment)>,
> or unsubscribe
> <https://github.com/notifications/unsubscribe-auth/AAQVMQJEMLOSQDSD43W3JL3TNNBRTANCNFSM44UNR6ZA>
> .
>
—
You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
zapta commented
Hello 823878209,
1. Please use the binary with the latest date. This is the latest version.
2. Can you send me a picture of your TFT PCB. I want to look at the jumpers
and resistors to see that you have the proper version.
3. Try to connect a resistor between pins 26 (/RD) and 2 (VDD Power Supply)
of the TFT. This is a potential design issue that I noticed recently. Any
resistor between 1K to 10K is OK.
Zapta
…On Thu, May 13, 2021 at 7:55 AM 823878209 ***@***.***> wrote:
Thank you very much for your help. I just watched your video.
The LED working status of my device is the same as your video.
I just tried to use the serial port assistant to read the information of
the device.
The information shown in the video, but my LCD screen still does not
display any information, is there something wrong with my LCD screen?
I also need to ask you, do the three BIN files in the open source file
have any different functions? (Firmware-2021-02-01, firmware-2021-02-01,
firmware-2021-02-01)
------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 晚上10:32
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Hello 823878209,
I like your build.
Here is a video that shows how my board behaves https://imgur.com/SCAhCDZ.
It does not matter if the TFT is connected or not.
Do you get the same LED blinking pattern and similar output on the
terminal?
Zapta
On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***> wrote:
> ------------------ 原始邮件 ------------------
> 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&gt;;
> 发送时间:&nbsp;2021年5月13日(星期四) 上午9:59
> ***@***.***&gt;;
> ***@***.******@***.***&gt;;
> 主题:&nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your help
(#8)
>
>
>
>
>
> Dear zapta, hello, first of all thank you for replying to me.
>
> &nbsp; &nbsp; &nbsp; According to the open source
document you posted on
> GitHub, I found the Gerber file and completed the PCB proofing. I
purchased
> all the components according to the BOM. After I assembled as
required, I
> burned the program and my LCD screen was running. The correct content
is
> not displayed on the screen, and he is always in a white screen
state.
>
>
> &nbsp; &nbsp; &nbsp; After the assembly was completed, I
burned the
> program, and it ran for the first time, and a part of the content was
> displayed on the LCD screen but it was incomplete, and then I ran it
again
> and the situation in the picture below appeared.
>
>
> &nbsp; &nbsp; &nbsp; Since I didn’t get in touch with you
in time, I
> thought it was a problem with the LCD screen. I contacted the LCD
> manufacturer. They said that the LCD screen I purchased might be
different
> from your model. I carefully compared the BOM table. The problem, I
also
> showed them and they said there was no problem,
>
>
> &nbsp; &nbsp; &nbsp; Finally, the LCD screen manufacturer
told me that I
> need to contact you, take a look at the photo on the back of the LCD
screen
> you are using, and see how the components on it are distributed.
>
>
> &nbsp;&nbsp; &nbsp; &nbsp; This is my confusion and
problem. I can't find
> the problem with my machine, so I ask you for advice and study.
>
> —
> You are receiving this because you commented.
> Reply to this email directly, view it on GitHub
> <
zapta/simple_stepper_motor_analyzer#8 (comment)>,
> or unsubscribe
> <
https://github.com/notifications/unsubscribe-auth/AAQVMQJEMLOSQDSD43W3JL3TNNBRTANCNFSM44UNR6ZA>
> .
>
—
You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
<zapta/simple_stepper_motor_analyzer#8 (comment)>,
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.
Tongmumu-i commented
This is a photo of my LCD screen, which is a bit blurry.
I tried to compare with the LCD screen you used before, but I couldn't see the photo you posted.
My current LCD screen, I have sent it back to the LCD screen manufacturer for processing.
I contacted him before, and I thought it was a quality problem with the LCD screen, so he asked me to send it back to him for processing.
It is estimated that in a few days he can send me a new LCD screen.
My LCD screen was purchased on Buydisplay according to the BOM parameters you got.
Or can you give me a PCB photo of the LCD screen you are using.
Thank you very much！！！
Tongmumu-i commented
This is a photo of my LCD screen, which is a bit blurry.
I tried to compare with the LCD screen you used before, but I couldn't see the photo you posted.
My current LCD screen, I have sent it back to the LCD screen manufacturer for processing.
I contacted him before, and I thought it was a quality problem with the LCD screen, so he asked me to send it back to him for processing.
It is estimated that in a few days he can send me a new LCD screen.
My LCD screen was purchased on Buydisplay according to the BOM parameters you got.
Or can you give me a PCB photo of the LCD screen you are using.
Thank you very much！！！
…------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 晚上11:20
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Hello 823878209,
1. Please use the binary with the latest date. This is the latest version.
2. Can you send me a picture of your TFT PCB. I want to look at the jumpers
and resistors to see that you have the proper version.
3. Try to connect a resistor between pins 26 (/RD) and 2 (VDD Power Supply)
of the TFT. This is a potential design issue that I noticed recently. Any
resistor between 1K to 10K is OK.
Zapta
On Thu, May 13, 2021 at 7:55 AM 823878209 ***@***.***> wrote:
> Thank you very much for your help. I just watched your video.&nbsp;
>
>
> The LED working status of my device is the same as your video.&nbsp;
>
>
> I just tried to use the serial port assistant to read the information of
> the device.&nbsp;
>
>
> The information shown in the video, but my LCD screen still does not
> display any information, is there something wrong with my LCD screen?
>
>
> I also need to ask you, do the three BIN files in the open source file
> have any different functions? (Firmware-2021-02-01, firmware-2021-02-01,
> firmware-2021-02-01)
>
>
>
>
>
>
>
>
>
>
> ------------------&nbsp;原始邮件&nbsp;------------------
> 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&gt;;
> 发送时间:&nbsp;2021年5月13日(星期四) 晚上10:32
> ***@***.***&gt;;
> ***@***.******@***.***&gt;;
> 主题:&nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
>
>
>
>
>
> Hello 823878209,
>
> I like your build.
>
> Here is a video that shows how my board behaves https://imgur.com/SCAhCDZ.
>
> It does not matter if the TFT is connected or not.
>
> Do you get the same LED blinking pattern and similar output on the
> terminal?
>
> Zapta
>
>
>
>
> On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***&gt; wrote:
>
> &gt; ------------------ 原始邮件 ------------------
> &gt; 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&amp;gt;;
> &gt; 发送时间:&amp;nbsp;2021年5月13日(星期四) 上午9:59
> &gt; ***@***.***&amp;gt;;
> &gt; ***@***.******@***.***&amp;gt;;
> &gt; 主题:&amp;nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your help
> (#8)
> &gt;
> &gt;
> &gt;
> &gt;
> &gt;
> &gt; Dear zapta, hello, first of all thank you for replying to me.
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; According to the open source
> document you posted on
> &gt; GitHub, I found the Gerber file and completed the PCB proofing. I
> purchased
> &gt; all the components according to the BOM. After I assembled as
> required, I
> &gt; burned the program and my LCD screen was running. The correct content
> is
> &gt; not displayed on the screen, and he is always in a white screen
> state.
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; After the assembly was completed, I
> burned the
> &gt; program, and it ran for the first time, and a part of the content was
> &gt; displayed on the LCD screen but it was incomplete, and then I ran it
> again
> &gt; and the situation in the picture below appeared.
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Since I didn’t get in touch with you
> in time, I
> &gt; thought it was a problem with the LCD screen. I contacted the LCD
> &gt; manufacturer. They said that the LCD screen I purchased might be
> different
> &gt; from your model. I carefully compared the BOM table. The problem, I
> also
> &gt; showed them and they said there was no problem,
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Finally, the LCD screen manufacturer
> told me that I
> &gt; need to contact you, take a look at the photo on the back of the LCD
> screen
> &gt; you are using, and see how the components on it are distributed.
> &gt;
> &gt;
> &gt; &amp;nbsp;&amp;nbsp; &amp;nbsp; &amp;nbsp; This is my confusion and
> problem. I can't find
> &gt; the problem with my machine, so I ask you for advice and study.
> &gt;
> &gt; —
> &gt; You are receiving this because you commented.
> &gt; Reply to this email directly, view it on GitHub
> &gt; <
> zapta/simple_stepper_motor_analyzer#8 (comment)&gt;,
>
> &gt; or unsubscribe
> &gt; <
> https://github.com/notifications/unsubscribe-auth/AAQVMQJEMLOSQDSD43W3JL3TNNBRTANCNFSM44UNR6ZA&gt;
>
> &gt; .
> &gt;
>
> —
> You are receiving this because you authored the thread.
> Reply to this email directly, view it on GitHub, or unsubscribe.
>
> —
> You are receiving this because you commented.
> Reply to this email directly, view it on GitHub
> <zapta/simple_stepper_motor_analyzer#8 (comment)>,
> or unsubscribe
> <https://github.com/notifications/unsubscribe-auth/AAQVMQJWKH34O4NK3EJPKGDTNPR6JANCNFSM44UNR6ZA>
> .
>
—
You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
zapta commented
I modified my TFT for a different project. Ignore the areas marked in red.
Everything else should be like your TFT.
Your TFT seems to have the FONT chip. Did you order it from buydisplay.com with
the FONT chip? I never tried a TFT with a FONT chip.
Also, when you will get your TFT back from the vendor, try to connect the
resistor and tell me if it solves the problem..
https://imgur.com/Vo2hg8B
…On Thu, May 13, 2021 at 8:34 AM 823878209 ***@***.***> wrote:
This is a photo of my LCD screen, which is a bit blurry.
I tried to compare with the LCD screen you used before, but I couldn't see
the photo you posted.
My current LCD screen, I have sent it back to the LCD screen manufacturer
for processing.
I contacted him before, and I thought it was a quality problem with the
LCD screen, so he asked me to send it back to him for processing.
It is estimated that in a few days he can send me a new LCD screen.
My LCD screen was purchased on Buydisplay according to the BOM parameters
you got.
Or can you give me a PCB photo of the LCD screen you are using.
Thank you very much！！！
------------------ 原始邮件 ------------------
发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
发送时间: 2021年5月13日(星期四) 晚上11:20
***@***.***>;
***@***.******@***.***>;
主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
Hello 823878209,
1. Please use the binary with the latest date. This is the latest version.
2. Can you send me a picture of your TFT PCB. I want to look at the
jumpers
and resistors to see that you have the proper version.
3. Try to connect a resistor between pins 26 (/RD) and 2 (VDD Power
Supply)
of the TFT. This is a potential design issue that I noticed recently. Any
resistor between 1K to 10K is OK.
Zapta
On Thu, May 13, 2021 at 7:55 AM 823878209 ***@***.***> wrote:
> Thank you very much for your help. I just watched your
video.&nbsp;
>
>
> The LED working status of my device is the same as your
video.&nbsp;
>
>
> I just tried to use the serial port assistant to read the information
of
> the device.&nbsp;
>
>
> The information shown in the video, but my LCD screen still does not
> display any information, is there something wrong with my LCD screen?
>
>
> I also need to ask you, do the three BIN files in the open source
file
> have any different functions? (Firmware-2021-02-01,
firmware-2021-02-01,
> firmware-2021-02-01)
>
>
>
>
>
>
>
>
>
>
> ------------------&nbsp;原始邮件&nbsp;------------------
> 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&gt;;
> 发送时间:&nbsp;2021年5月13日(星期四) 晚上10:32
> ***@***.***&gt;;
> ***@***.******@***.***&gt;;
> 主题:&nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your help
(#8)
>
>
>
>
>
> Hello 823878209,
>
> I like your build.
>
> Here is a video that shows how my board behaves
https://imgur.com/SCAhCDZ.
>
> It does not matter if the TFT is connected or not.
>
> Do you get the same LED blinking pattern and similar output on the
> terminal?
>
> Zapta
>
>
>
>
> On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***&gt; wrote:
>
> &gt; ------------------ 原始邮件 ------------------
> &gt; 发件人: "zapta/simple_stepper_motor_analyzer"
***@***.***&amp;gt;;
> &gt; 发送时间:&amp;nbsp;2021年5月13日(星期四) 上午9:59
> &gt; ***@***.***&amp;gt;;
> &gt; ***@***.******@***.***&amp;gt;;
> &gt; 主题:&amp;nbsp;Re: [zapta/simple_stepper_motor_analyzer]
Need your help
> (#8)
> &gt;
> &gt;
> &gt;
> &gt;
> &gt;
> &gt; Dear zapta, hello, first of all thank you for replying to
me.
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; According to
the open source
> document you posted on
> &gt; GitHub, I found the Gerber file and completed the PCB
proofing. I
> purchased
> &gt; all the components according to the BOM. After I assembled
as
> required, I
> &gt; burned the program and my LCD screen was running. The
correct content
> is
> &gt; not displayed on the screen, and he is always in a white
screen
> state.
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; After the
assembly was completed, I
> burned the
> &gt; program, and it ran for the first time, and a part of the
content was
> &gt; displayed on the LCD screen but it was incomplete, and then
I ran it
> again
> &gt; and the situation in the picture below appeared.
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Since I didn’t
get in touch with you
> in time, I
> &gt; thought it was a problem with the LCD screen. I contacted
the LCD
> &gt; manufacturer. They said that the LCD screen I purchased
might be
> different
> &gt; from your model. I carefully compared the BOM table. The
problem, I
> also
> &gt; showed them and they said there was no problem,
> &gt;
> &gt;
> &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Finally, the
LCD screen manufacturer
> told me that I
> &gt; need to contact you, take a look at the photo on the back of
the LCD
> screen
> &gt; you are using, and see how the components on it are
distributed.
> &gt;
> &gt;
> &gt; &amp;nbsp;&amp;nbsp; &amp;nbsp; &amp;nbsp;
This is my confusion and
> problem. I can't find
> &gt; the problem with my machine, so I ask you for advice and
study.
> &gt;
> &gt; —
> &gt; You are receiving this because you commented.
> &gt; Reply to this email directly, view it on GitHub
> &gt; <
>
zapta/simple_stepper_motor_analyzer#8 (comment)&gt;,
>
> &gt; or unsubscribe
> &gt; <
>
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> &gt; .
> &gt;
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zapta commented
FYI, I added to the schematic an errata regarding the missing pull up.
Details here
https://github.com/zapta/simple_stepper_motor_analyzer/blob/master/kicad/stepper_analyzer-sch.pdf
…On Thu, May 13, 2021 at 9:19 AM Tal Dayan ***@***.***> wrote:
I modified my TFT for a different project. Ignore the areas marked in red.
Everything else should be like your TFT.
Your TFT seems to have the FONT chip. Did you order it from buydisplay.com with
the FONT chip? I never tried a TFT with a FONT chip.
Also, when you will get your TFT back from the vendor, try to connect the
resistor and tell me if it solves the problem..
https://imgur.com/Vo2hg8B
On Thu, May 13, 2021 at 8:34 AM 823878209 ***@***.***>
wrote:
> This is a photo of my LCD screen, which is a bit blurry.
>
>
> I tried to compare with the LCD screen you used before, but I couldn't
> see the photo you posted.
>
>
> My current LCD screen, I have sent it back to the LCD screen manufacturer
> for processing.
>
>
> I contacted him before, and I thought it was a quality problem with the
> LCD screen, so he asked me to send it back to him for processing.
>
>
> It is estimated that in a few days he can send me a new LCD screen.
>
>
> My LCD screen was purchased on Buydisplay according to the BOM parameters
> you got.
>
>
> Or can you give me a PCB photo of the LCD screen you are using.
>
>
> Thank you very much！！！
>
>
>
>
>
>
>
>
>
> ------------------ 原始邮件 ------------------
> 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***>;
> 发送时间: 2021年5月13日(星期四) 晚上11:20
> ***@***.***>;
> ***@***.******@***.***>;
> 主题: Re: [zapta/simple_stepper_motor_analyzer] Need your help (#8)
>
>
>
>
>
> Hello 823878209,
>
> 1. Please use the binary with the latest date. This is the latest
> version.
>
> 2. Can you send me a picture of your TFT PCB. I want to look at the
> jumpers
> and resistors to see that you have the proper version.
>
> 3. Try to connect a resistor between pins 26 (/RD) and 2 (VDD Power
> Supply)
> of the TFT. This is a potential design issue that I noticed recently. Any
> resistor between 1K to 10K is OK.
>
> Zapta
>
>
>
>
>
>
> On Thu, May 13, 2021 at 7:55 AM 823878209 ***@***.***> wrote:
>
> > Thank you very much for your help. I just watched your
> video.&nbsp;
> >
> >
> > The LED working status of my device is the same as your
> video.&nbsp;
> >
> >
> > I just tried to use the serial port assistant to read the
> information of
> > the device.&nbsp;
> >
> >
> > The information shown in the video, but my LCD screen still does not
> > display any information, is there something wrong with my LCD
> screen?
> >
> >
> > I also need to ask you, do the three BIN files in the open source
> file
> > have any different functions? (Firmware-2021-02-01,
> firmware-2021-02-01,
> > firmware-2021-02-01)
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ------------------&nbsp;原始邮件&nbsp;------------------
> > 发件人: "zapta/simple_stepper_motor_analyzer" ***@***.***&gt;;
> > 发送时间:&nbsp;2021年5月13日(星期四) 晚上10:32
> > ***@***.***&gt;;
> > ***@***.******@***.***&gt;;
> > 主题:&nbsp;Re: [zapta/simple_stepper_motor_analyzer] Need your
> help (#8)
> >
> >
> >
> >
> >
> > Hello 823878209,
> >
> > I like your build.
> >
> > Here is a video that shows how my board behaves
> https://imgur.com/SCAhCDZ.
> >
> > It does not matter if the TFT is connected or not.
> >
> > Do you get the same LED blinking pattern and similar output on the
> > terminal?
> >
> > Zapta
> >
> >
> >
> >
> > On Wed, May 12, 2021 at 8:29 PM 823878209 ***@***.***&gt; wrote:
> >
> > &gt; ------------------ 原始邮件 ------------------
> > &gt; 发件人: "zapta/simple_stepper_motor_analyzer"
> ***@***.***&amp;gt;;
> > &gt; 发送时间:&amp;nbsp;2021年5月13日(星期四) 上午9:59
> > &gt; ***@***.***&amp;gt;;
> > &gt; ***@***.******@***.***&amp;gt;;
> > &gt; 主题:&amp;nbsp;Re: [zapta/simple_stepper_motor_analyzer]
> Need your help
> > (#8)
> > &gt;
> > &gt;
> > &gt;
> > &gt;
> > &gt;
> > &gt; Dear zapta, hello, first of all thank you for replying to
> me.
> > &gt;
> > &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; According to
> the open source
> > document you posted on
> > &gt; GitHub, I found the Gerber file and completed the PCB
> proofing. I
> > purchased
> > &gt; all the components according to the BOM. After I assembled
> as
> > required, I
> > &gt; burned the program and my LCD screen was running. The
> correct content
> > is
> > &gt; not displayed on the screen, and he is always in a white
> screen
> > state.
> > &gt;
> > &gt;
> > &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; After the
> assembly was completed, I
> > burned the
> > &gt; program, and it ran for the first time, and a part of the
> content was
> > &gt; displayed on the LCD screen but it was incomplete, and then
> I ran it
> > again
> > &gt; and the situation in the picture below appeared.
> > &gt;
> > &gt;
> > &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Since I didn’t
> get in touch with you
> > in time, I
> > &gt; thought it was a problem with the LCD screen. I contacted
> the LCD
> > &gt; manufacturer. They said that the LCD screen I purchased
> might be
> > different
> > &gt; from your model. I carefully compared the BOM table. The
> problem, I
> > also
> > &gt; showed them and they said there was no problem,
> > &gt;
> > &gt;
> > &gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; Finally, the
> LCD screen manufacturer
> > told me that I
> > &gt; need to contact you, take a look at the photo on the back
> of the LCD
> > screen
> > &gt; you are using, and see how the components on it are
> distributed.
> > &gt;
> > &gt;
> > &gt; &amp;nbsp;&amp;nbsp; &amp;nbsp; &amp;nbsp;
> This is my confusion and
> > problem. I can't find
> > &gt; the problem with my machine, so I ask you for advice and
> study.
> > &gt;
> > &gt; —
> > &gt; You are receiving this because you commented.
> > &gt; Reply to this email directly, view it on GitHub
> > &gt; <
> >
> zapta/simple_stepper_motor_analyzer#8 (comment)&gt;,
>
> >
> > &gt; or unsubscribe
> > &gt; <
> >
> https://github.com/notifications/unsubscribe-auth/AAQVMQJEMLOSQDSD43W3JL3TNNBRTANCNFSM44UNR6ZA&gt;
>
> >
> > &gt; .
> > &gt;
> >
> > —
> > You are receiving this because you authored the thread.
> > Reply to this email directly, view it on GitHub, or unsubscribe.
> >
> > —
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> > <
> zapta/simple_stepper_motor_analyzer#8 (comment)>,
>
> > or unsubscribe
> > <
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> > .
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Tongmumu-i commented
Dear zapta, I already got my LCD screen yesterday. Connect a 4.7K resistor between pins 26 (/RD) and 2 (VDD power supply) of the TFT according to the method you provided. Basically, the device can work normally. Thank you very much for your help. I will connect the stepper motor today and try its detection function.
zapta commented
Hi 823878209, I am glad that it works for you.
Please let me know if you will encounter any other problem.
…On Sun, May 16, 2021 at 5:33 PM 823878209 ***@***.***> wrote:
Dear zapta, I already got my LCD screen yesterday. Connect a 4.7K resistor between pins 26 (/RD) and 2 (VDD power supply) of the TFT according to the method you provided. Basically, the device can work normally. Thank you very much for your help. I will connect the stepper motor today and try its detection function.
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