最近自己组了一个MMDVM盒子，顺便研究了一下串口屏固件开发，写了一个固件，目前在DMR模式下测试良好，但因为没有其他制式设备，所以YSF等其他模式没有写，如果哪位可以提供YSF模式下的串口原始传输数据的话后续可以添加进去。屏幕固件基于TJC8048X370_011开发，测试硬件为树莓派4+双工热点板，WPSD系统，Nextion驱动。DMR模式支持双时隙，可显示呼号、姓名、组呼号，所在国家/地区（包括根据国内呼号判断所在省份），以及最后6个呼叫。如果有TJC X系列800*480分辨率串口屏的可以联系我获取相应固件测试，T系列和K系列因为部分控件属性与X系列不同可能需要一些额外调整。 [upl-image-preview url=https://storage.hamcq.cn/2024-05-29/1716987204-756409-tjc8048x370-wpsd.png] [upl-image-preview url=https://storage.hamcq.cn/2024-05-29/1716987205-589847-tjc8048x370-wpsd2.jpg] [upl-image-preview url=https://storage.hamcq.cn/2024-05-29/1716987544-210115-img-0663.jpg]

20240721更新了3.5寸屏幕固件，修正WPSD系统12小时制转换24小时制的BUG，并额外增加了一点点小改进。此版功能基本成型，后续不会花费太多精力更新版本。故本版本开始提供HMI文件，各位HAM可以自己修改适配屏幕型号、显示方向等。免费使用，但修改请保留原作者信息。如有发现BUG或优化代码请也请抄送原作者。链接: https://pan.baidu.com/s/19FrWKRvhTgzIQMzrHmCHLQ 提取码: 7ANY

左上角呼号的风格有点眼熟

@"BD4MCG"#p19065 左上角呼号是会根据MMDVM盒子的呼号自动更新的。至于配色风格……不要问，问就是本人的恶趣味😏

@"BH7FBP"#p19052 算了吧，光搞清楚串口屏控件和MMDVM通信指令就用花了一个多星期，还只搞定了一个DMR……

这个固件看着不错啊大佬知道哪里可以下载外壳的3D打印文件或者购买成品外壳吗？多谢🙏

@"BI7ANY"#p19076 串口屏的指令能发到mmdvm host处理了？github那个open的bug 开发一只没close

@"DF4_9460"#p20613 外壳某宝搜就有

@"BI1RRE"#p20618 NextionDriver的说明里是提到可以侦听串口返回的指令，但我反复测试后，最多也就切换下页面，调整下屏幕亮度这种，其他诸如关机、重启、更新系统等功能通过串口指令都无法实现。

I have created an MMDVM serial port firmware. Please test it.

DF4_9460

Hey everyone, I've already installed the firmware and it seems to be working well so far. I haven't found any bugs yet.😆

BI7ANY

DF4_9460 Besides DMR, other modes cannot return user name data (even for modes like NXDN that have a user database), so the final list of calls contains large gaps, which is quite frustrating.

DF4_9460

BI7ANY I haven't even realized this yet.😅
Regarding another issue: When returning from the call list page in P25 mode to the clock (standby) page, the date and time may display incorrectly for 1-2 seconds, or show "2019//". This is likely because the duplex board hasn't yet sent a new time/date command at that point. This transition could be optimized.

DF4_9460

DF4_9460 I made a mistake.😂 It displays "20//" I am using the WSPD system.

BI7ANY

DF4_9460 The reason the system displays "20//" is because the time formats of PI-STAR and WPSD systems are different. Specifically, when the WPSD system is set to a 24-hour format, the data received via serial port still appears in a 12-hour format. Therefore, I wrote specific code to unify the time format.
It's also very easy to fix: just change the memory usage (vscope) for the date text to "global" (basically, I was just being lazy).🤪）。

BI7ANY

BI7ANY I suddenly realized that directly modifying the global value doesn't work, because my timestamp is set to update every 0.5 seconds. If there isn't new data within 0.5 seconds after switching pages, it will still revert to "20//" [embarrassed].
I'll think about how to solve it tomorrow, but for now, I'm going to sleep.

DF4_9460

BI7ANY Haha, I just realized! I've now switched it to DMR mode, and the information displayed is definitely much richer.😆

BG5CDM

TJC4832K035, I see that the firmware on my cloud storage (Meituan) is an older version. I tried exporting it myself using the HMI, but it didn't work.

BI7ANY

BG5CDM Download the HMI file for a 3.5-inch screen, use software to change the device information to TJC4832K035, and then export the TFT file.

BG5CDM

BI7ANY Thank you, esteemed colleague. The operation has been completed.

BI7ANY

Updated firmware for 3.5-inch and 4.3-inch devices.
4.3-inch display with call indicator: When a channel has an active call, the mode name will turn red; when the channel is idle, it turns white.
There are also a few minor changes.

BH8GG

"Liking and learning from open-source projects is a great approach. Starting with emulation allows for a much broader understanding compared to simply asking others for specific code implementations. Some people, when asked about the implementation of a particular piece of code, directly admit they don't know and suggest looking at Tao Jingchi's documentation."👍

BI7ANY

BH8GG or maybe I just forgot how the code was implemented at the time.😂
After all, as the saying goes, "If a piece of code works, don't mess with it."

BI7ANY

I've added a new feature to my work "time-wasting" app: it now displays the duration of calls.
When a call is active, the font color will be red, and the current call duration will be displayed. When there is no active call, the last call's duration will be displayed, along with the time elapsed since that call. This interface is now very close to the Livecaller interface of WPSD.😁
Additionally, comments have been added to the code to adapt it for a 3.5-inch screen, and the HMI file has been uploaded. Please test it.
Link: https://pan.baidu.com/s/19FrWKRvhTgzIQMzrHmCHLQ
Extraction code: 7ANY

BG5CDM

Hey boss, what's going on here?

BI7ANY

BG5CDM It appears to be an issue with the RadioID database. The database does not contain detailed user information, and it should resolve itself once the database is updated.
However, in most cases, the RadioID database should only display a 7-digit ID and I haven't seen any that show "DMRID + call sign" either. I'll take a look later when I have time, but it has been almost a month since I last used the radio…

BD4TZY

BI7ANY Yes, this is a real issue. The new call sign should display the ID, but instead it displays DMRID + call sign. The last few digits of the call sign are obscured by the flag. A fix could be to move the call sign to the top and also increase the length of the call sign display bar.
I am using the TJC4832T135 screen.

BI7ANY

BD4TZY I have a personal compulsion to only display the call sign, so I essentially rebuilt all the serial port return data using code.
If this is the same issue I'm facing, adding a piece of code should resolve it. I'll take a closer look tomorrow or the day after.

bigQ

Thank you, Open Source! Could you please advise on how to perform online testing for this screen code?

BI7ANY

bigQ 软件可以测试，用USB-TTL工具连接热点板串口（即连接屏幕的接口）和电脑USB口，在软件里选择对应的COM口即可联机测试

BI7ANY

I've made a revision that addresses the "DMRID" situation by adding code, but it hasn't been tested yet. You can download and try it out.

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