Hi,
This is a really cool project/product ! IMO it has a lot of scope and possibilities !

I am an embedded developer and amateur endurance athlete ( https://www.strava.com/athletes/12265248 ) and the prospect of being able to tinker with the wrist unit I use is very appealing to me even though it may not be sufficiently rugged for general use but for my purposes this is not a big problem.

Some questions,

1. Can I buy one or two units, If so where from and how ?
2. Do you have any plans to add Bluetooth and maybe WiFi to the hardware at some point ?
3. I have been using LVGL for a few years now and generally use the IAR compiler.
   I am be willing to adapt the project to IAR for both IAR and Eclipse IDE's and in future VisualGDB ( https://visualgdb.com/ ) using either IAR and/Or GNU Compilers. I am also willing to migrate the source code for LVGL V7.x compatibility. Would you welcome collaboration in this regard ?

Looking forward to your response.

这是一个很棒的项目，我想复现一个学习一下，但是发现元器件清单中的2016晶振没有标明频率，想要请教一下。非常期待您的回复！

我在学习作者的LVGL模拟器搭建，来尝试完成自己设计的UI模拟，请问需要将github上的lvgl工程更改哪些配置

如题

移植了楼主的lvgl显示驱动，在1.14寸屏幕上只能显示一般的图案

您好，冒昧的打搅一下： 因为很喜欢watchX里面的pagemanager库。所以尝试把您的库集成到了之前自己的keil工程里面（stm32F429），并加上了--gnu选项。现在编译器报很多错误。您看可能是哪里的问题呢？感谢！
Build started: Project: NETWORK
*** Using Compiler 'V5.06 update 6 (build 750)', folder: 'D:\PROGRAM\Keil\ARM\ARMCC\Bin'
Build target 'NETWORK'
compiling main.c...
..\LWIP\lwip-1.4.1\src\include\ipv4\lwip/ip_addr.h(53): warning: #3135-D: attribute does not apply to any entity
PACK_STRUCT_BEGIN
..\LWIP\lwip-1.4.1\src\include\ipv4\lwip/ip_addr.h(74): warning: #3135-D: attribute does not apply to any entity
PACK_STRUCT_BEGIN
..\GUI\DisplayPrivate.h(19): warning: #1295-D: Deprecated declaration DisplayError_Init - give arg types
void DisplayError_Init();
..\GUI\DisplayPrivate.h(20): warning: #1295-D: Deprecated declaration Display_Init - give arg types
void Display_Init();
..\GUI\DisplayPrivate.h(21): warning: #1295-D: Deprecated declaration Display_Update - give arg types
void Display_Update();
..\Libraries\PageManager\PageManager.h(44): error: #20: identifier "class" is undefined
class PageManager {
..\Libraries\PageManager\PageManager.h(44): error: #65: expected a ";"
class PageManager {
..\Libraries\PageManager\PageManager.h(65): warning: #12-D: parsing restarts here after previous syntax error
);
..\Libraries\PageManager\PageManager.h(68): warning: #1295-D: Deprecated declaration PagePop - give arg types
bool PagePop();
..\Libraries\PageManager\PageManager.h(71): warning: #1295-D: Deprecated declaration PageStackClear - give arg types
void PageStackClear();
..\Libraries\PageManager\PageManager.h(72): warning: #1295-D: Deprecated declaration Running - give arg types
void Running();
..\Libraries\PageManager\PageManager.h(73): warning: #77-D: this declaration has no storage class or type specifier
private:
..\Libraries\PageManager\PageManager.h(73): error: #65: expected a ";"
private:
..\Libraries\PageManager\PageManager.h(80): error: #169: expected a declaration
};
..\GUI\DisplayPrivate.h(42): error: #757: variable "PageManager" is not a type name
extern PageManager page;
..\GUI\DisplayPrivate.h(55): warning: #1295-D: Deprecated declaration lv_port_disp_init - give arg types
void lv_port_disp_init();
..\GUI\DisplayPrivate.h(67): error: #18: expected a ")"
uint16_t time = LV_ANIM_TIME_DEFAULT,
..\GUI\DisplayPrivate.h(70): warning: #12-D: parsing restarts here after previous syntax error
);
..\GUI\DisplayPrivate.h(84): warning: #1295-D: Deprecated declaration AppWindow_Create - give arg types
void AppWindow_Create();
..\GUI\DisplayPrivate.h(86): warning: #1295-D: Deprecated declaration AppWindow_GetHeight - give arg types
lv_coord_t AppWindow_GetHeight();
..\GUI\DisplayPrivate.h(87): warning: #1295-D: Deprecated declaration AppWindow_GetWidth - give arg types
lv_coord_t AppWindow_GetWidth();
main.c(212): warning: #223-D: function "W25QXX_Init" declared implicitly
W25QXX_Init(); //SPI W25Q128 init 32MByte
main.c(283): warning: #223-D: function "app_system_parameter_init" declared implicitly
if(app_system_parameter_init())
main.c(193): warning: #177-D: variable "res" was declared but never referenced
u8 res;
main.c(194): warning: #177-D: variable "dtsize" was declared but never referenced
u32 dtsize,dfsize;
main.c(194): warning: #177-D: variable "dfsize" was declared but never referenced
u32 dtsize,dfsize;
main.c(195): warning: #177-D: variable "stastr" was declared but never referenced
u8 stastr=0;
main.c(196): warning: #177-D: variable "version" was declared but never referenced
u8 version=0;
main.c(197): warning: #177-D: variable "verbuf" was declared but never referenced
u8 verbuf[12];
main.c(199): warning: #177-D: variable "icowidth" was declared but never referenced
u8 icowidth;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(820): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad7705ctr1 += 0.5;
main.c: 37 warnings, 6 errors
"..\OBJ\Tempate.axf" - 6 Error(s), 37 Warning(s).
Target not created.
Build Time Elapsed: 00:00:10

你好Utility和MDK都无法连接到设备

非常棒的项目！
手头正好有一块F429和F407的开发板，还有一块7寸的触摸屏。
请问您这个如何移植呢？
非常感谢

我最近也在做一款类似的手表，看到您的项目很有帮助。我认为在这种情况下使用线性电源有以下优点：
1.外围元件少，节省布线空间
2.单节锂电池降压到3.3V，也有80~90%的效率
请问您为什么选择使用开关电源呢？是为了追求尽可能高的电源效率还是有其他考虑呢

从主页面进入到菜单正常，但是从菜单进入其他页面会卡死在Setup

如果应用于单片机需要增加ArduinoAPI吗？我看里面的编译又会include stm32的库进来。
我正要运行到nrf52832上面

i had downloaded this project and watching you video , it's so cool , but when I ready to compile this project I find something error that located in audio.app 160 line, 164 line 170 line 175line .those error are same they are #19:extra text after expected end of number .

您好，冒昧的打搅一下： 因为很喜欢watchX里面的pagemanager库。所以尝试把您的库集成到了之前自己的keil工程里面（stm32F429），并加上了--gnu选项。现在编译器报很多错误。您看可能是哪里的问题呢？感谢！
Build started: Project: NETWORK
*** Using Compiler 'V5.06 update 6 (build 750)', folder: 'D:\PROGRAM\Keil\ARM\ARMCC\Bin'
Build target 'NETWORK'
compiling main.c...
..\LWIP\lwip-1.4.1\src\include\ipv4\lwip/ip_addr.h(53): warning: #3135-D: attribute does not apply to any entity
PACK_STRUCT_BEGIN
..\LWIP\lwip-1.4.1\src\include\ipv4\lwip/ip_addr.h(74): warning: #3135-D: attribute does not apply to any entity
PACK_STRUCT_BEGIN
..\GUI\DisplayPrivate.h(19): warning: #1295-D: Deprecated declaration DisplayError_Init - give arg types
void DisplayError_Init();
..\GUI\DisplayPrivate.h(20): warning: #1295-D: Deprecated declaration Display_Init - give arg types
void Display_Init();
..\GUI\DisplayPrivate.h(21): warning: #1295-D: Deprecated declaration Display_Update - give arg types
void Display_Update();
..\Libraries\PageManager\PageManager.h(44): error: #20: identifier "class" is undefined
class PageManager {
..\Libraries\PageManager\PageManager.h(44): error: #65: expected a ";"
class PageManager {
..\Libraries\PageManager\PageManager.h(65): warning: #12-D: parsing restarts here after previous syntax error
);
..\Libraries\PageManager\PageManager.h(68): warning: #1295-D: Deprecated declaration PagePop - give arg types
bool PagePop();
..\Libraries\PageManager\PageManager.h(71): warning: #1295-D: Deprecated declaration PageStackClear - give arg types
void PageStackClear();
..\Libraries\PageManager\PageManager.h(72): warning: #1295-D: Deprecated declaration Running - give arg types
void Running();
..\Libraries\PageManager\PageManager.h(73): warning: #77-D: this declaration has no storage class or type specifier
private:
..\Libraries\PageManager\PageManager.h(73): error: #65: expected a ";"
private:
..\Libraries\PageManager\PageManager.h(80): error: #169: expected a declaration
};
..\GUI\DisplayPrivate.h(42): error: #757: variable "PageManager" is not a type name
extern PageManager page;
..\GUI\DisplayPrivate.h(55): warning: #1295-D: Deprecated declaration lv_port_disp_init - give arg types
void lv_port_disp_init();
..\GUI\DisplayPrivate.h(67): error: #18: expected a ")"
uint16_t time = LV_ANIM_TIME_DEFAULT,
..\GUI\DisplayPrivate.h(70): warning: #12-D: parsing restarts here after previous syntax error
);
..\GUI\DisplayPrivate.h(84): warning: #1295-D: Deprecated declaration AppWindow_Create - give arg types
void AppWindow_Create();
..\GUI\DisplayPrivate.h(86): warning: #1295-D: Deprecated declaration AppWindow_GetHeight - give arg types
lv_coord_t AppWindow_GetHeight();
..\GUI\DisplayPrivate.h(87): warning: #1295-D: Deprecated declaration AppWindow_GetWidth - give arg types
lv_coord_t AppWindow_GetWidth();
main.c(212): warning: #223-D: function "W25QXX_Init" declared implicitly
W25QXX_Init(); //SPI W25Q128 init 32MByte
main.c(283): warning: #223-D: function "app_system_parameter_init" declared implicitly
if(app_system_parameter_init())
main.c(193): warning: #177-D: variable "res" was declared but never referenced
u8 res;
main.c(194): warning: #177-D: variable "dtsize" was declared but never referenced
u32 dtsize,dfsize;
main.c(194): warning: #177-D: variable "dfsize" was declared but never referenced
u32 dtsize,dfsize;
main.c(195): warning: #177-D: variable "stastr" was declared but never referenced
u8 stastr=0;
main.c(196): warning: #177-D: variable "version" was declared but never referenced
u8 version=0;
main.c(197): warning: #177-D: variable "verbuf" was declared but never referenced
u8 verbuf[12];
main.c(199): warning: #177-D: variable "icowidth" was declared but never referenced
u8 icowidth;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(681): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[0].Temp = p1ad[0].Rtad[0].Rtad[0].Rtad[0].Rt + p2ad[0].Rtad[0].Rtad[0].Rt + p3ad[0].Rtad[0].Rt + p4ad[0].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(725): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[1].Temp = p1ad[1].Rtad[1].Rtad[1].Rtad[1].Rt + p2ad[1].Rtad[1].Rtad[1].Rt + p3ad[1].Rtad[1].Rt + p4ad[1].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(769): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[2].Temp = p1ad[2].Rtad[2].Rtad[2].Rtad[2].Rt + p2ad[2].Rtad[2].Rtad[2].Rt + p3ad[2].Rtad[2].Rt + p4ad[2].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(812): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad[3].Temp = p1ad[3].Rtad[3].Rtad[3].Rtad[3].Rt + p2ad[3].Rtad[3].Rtad[3].Rt + p3ad[3].Rtad[3].Rt + p4ad[3].Rt + p5;
main.c(820): warning: #1035-D: single-precision operand implicitly converted to double-precision
ad7705ctr1 += 0.5;
main.c: 37 warnings, 6 errors
"..\OBJ\Tempate.axf" - 6 Error(s), 37 Warning(s).
Target not created.
Build Time Elapsed: 00:00:10

您好！非常棒的软硬件设计，感谢分享！
我用原版PCB打样并且焊好了三块，现在遇到问题：ST-LINK Utility和MDK都只能识别到单片机，不能下载，焊接检查了没有问题，用按住Reset再松开的办法也不能正常下载，请问你有这个问题吗？如何debug呢？谢谢

如果想要再嘉立创打SMT贴片的话，PCB文件中使用元器件封装是否跟嘉立创的封装标准对应