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#1 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 不拆SoC,不用X光机,利用已知IO探测未知的IO连接情况 » 2022-01-22 09:33:31

以前mcu搞过 yikes ,丝印被磨,重塑封装,引脚打乱,但板子一般不复杂,时间支付不太大
但soc扫io的方式,估计时间上会支出比较大,起码板子探测就要比较久的时间了

哦,不过探测部分引出的io,应该可行

#3 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 网线直连,网卡单向ping通,求问应该从哪里入手解决。 » 2021-12-29 10:40:53

我之前遇到过一个这样的问题,是phy与控制芯片的时钟线冲突导致,收发的情况,有时可以,有时又没有

#4 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » lvgl7重复调用lv_img_set_src后造成系统(RTOS)死机 » 2021-12-29 10:33:22

我在esp32上v5.3使用的情况看,lvgl导致rtos挂掉的,多出现在在lv_task_hander之外的线程调用了lv_obj_del导致,这个跨线程删除控件,有一定的操作风险,而这个风险导致rtos挂掉是随机出现的;建议del操作,建立一个lv_task来做del;
v7版本有个lv_obj_del_async的操作就是,你可以尝试一下看
我怀疑崩掉不一定是这里的问题

#5 Re: RISC-V » 基于qlexcel大佬开源的热成像仪 » 2021-12-29 10:21:56

我前几天帮别人用esp32也搞了一个,是直接在温度map做差值,最后出图 big_smile

#9 Re: ESP32/ESP8266 » esp-idf v4.3怎么设置gpio0输出时钟信号给rmii? » 2021-08-05 10:19:08

在menuconfig里Ethernet里有选项
4.3RMII clock部分用宏做到hal里了
参考idf里hal部分

void emac_hal_lowlevel_init(emac_hal_context_t *hal);
..
#if CONFIG_ETH_RMII_CLK_INPUT
#if CONFIG_ETH_RMII_CLK_IN_GPIO == 0
    /* RMII clock (50MHz) input to GPIO0 */
    PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0_EMAC_TX_CLK);
    PIN_INPUT_ENABLE(GPIO_PIN_MUX_REG[0]);
#else
#error "ESP32 EMAC only support input RMII clock to GPIO0"
#endif
#endif
#if CONFIG_ETH_RMII_CLK_OUTPUT
#if CONFIG_ETH_RMII_CLK_OUTPUT_GPIO0
    /* APLL clock output to GPIO0 (must be configured to 50MHz!) */
    PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0_CLK_OUT1);
    PIN_INPUT_DISABLE(GPIO_PIN_MUX_REG[0]);
#elif CONFIG_ETH_RMII_CLK_OUT_GPIO == 16
    /* RMII CLK (50MHz) output to GPIO16 */
    PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO16_U, FUNC_GPIO16_EMAC_CLK_OUT);
    PIN_INPUT_DISABLE(GPIO_PIN_MUX_REG[16]);
#elif CONFIG_ETH_RMII_CLK_OUT_GPIO == 17
    /* RMII CLK (50MHz) output to GPIO17 */
    PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO17_U, FUNC_GPIO17_EMAC_CLK_OUT_180);
    PIN_INPUT_DISABLE(GPIO_PIN_MUX_REG[17]);
#endif
#endif // CONFIG_ETH_RMII_CLK_OUTPUT
    /* Clock configuration */
...

#14 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » little vgl的移植,完全不得要领?? » 2020-08-19 09:21:29

juri3953 说:

就是stm的片子,我的屏幕是黑白的,spi驱动,我怀疑我的回调函数有问题;

disp_drv.flush_cb = my_flush_cb;
my_flush_cb中调用的put_px(x, y, *color_p)函数,我实现的非常简单,
由于是黑白屏幕,*color_p 实际上没有引用,实现的方式就是把屏幕坐标(x,y)的点,点亮;

你可以把这部分贴出来,感觉是你实现的flush的问题吧

#17 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » littlevgl 在List上创建btn,btn上的label自动滚动 » 2020-07-23 10:03:34

style的问题,btn要显示中文,需要设置三个style的font,press,inv,rel

#18 Re: 全志 SOC » 求littervgl源码 » 2020-07-13 10:12:38

应该不是下载不了,是太慢了……
试试fastgit
git clone --recurse-submodules https://hub.fastgit.org/littlevgl/lvgl.git

#22 Re: ESP32/ESP8266 » 求解esp-wrover-kit无法烧写 » 2020-06-22 10:34:00

不知道你说的没反应是啥,:笑哭

#24 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 寻找立创EDA比赛队友 » 2020-06-15 14:04:57

mooniscrazy 说:

智能家居不错。我有很多想法,比如对空调的控制系统不满意,太土了,居然不能用手机控制,也没有wifi,不能编程。

哈哈,这个想法,我在等家里的部分电器过保,过保了之后,准备看看那些能够改装的,准备试试做个控制器

#26 Re: ESP32/ESP8266 » make: *** 没有规则可制作目标“check_python_dependencies”,由“menuconfig” 需求 » 2020-06-03 16:07:09

缺少依赖文件,看提示你的idf应该是4.0或者以前的(猜测)
可以参考
https://github.com/espressif/esp-idf/tree/release/v4.0进行配置环境
在esp-idf目录下,执行

python -m pip install -r requirements.txt

#28 Re: 全志 SOC » Littlevgl移植ARM环境 » 2020-05-21 09:42:28

lvgl官网的例程应该可以作为很好的参考

#32 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 求推荐电容触摸控制芯片 » 2020-05-11 11:15:55

貌似有的是,台湾和泰bs,通泰tty,ttp4-16键,韩国ads1-16键,博晶微的sc系列 4-12键
我现在用的是通泰tty6955,16键i2c输出,出现个奇怪的问题,上月中旬过后,天气热燥导致触摸受干扰(随机性的个别按键误触发),开了空调就没事

#33 Re: Cortex M0/M3/M4/M7 » 基于新唐M0516的MDK+GCC的编译环境建立与LOOK应用开发--缥缈九哥 » 2020-05-11 09:38:50

哈哈,九哥,你也来坑网了 big_smile
看帖子,你是把你博客的都搬过来了啊

#36 Re: ESP32/ESP8266 » 编译esp-aliyun的两个例程,遇到了问题,求助。 » 2020-04-11 13:42:11

Gentlepig 说:

嗯,确实是烧录的分区表不对,我不该用esp-aliyun/config/mass_mfg目录下的single_mfg_config.csv.
在esp-aliyun/examples/mqtt/mqtt_example目录下有个partitions_esp32.csv,在menuconfig里设置分区表为自定义的,然后默认的名称是partitions.csv,改成partitions_esp32.csv即可。
然后idf.py build,报错,提示超过2m,按提示进入Menuconfig菜单,串口下载那里配置,把flash容量改成4M。
再次编译,通过,下载,重启,程序成功启动,不过提示mqtt订阅失败。

有两个疑惑点:
1:mqtt/mqtt_example目录下有两个.csv文件,一个是8266的,一个是esp32的。但是esp-idf的esp-idf.py set-target命令,后面跟的参数只能是esp32或者是esp32s2,没法设置成8266吧?
2:默认配置里串口下载参数那里程序大小是2M,为什么是2M呢?买的esp32-wroom模块都是4M flash的啊。

1.因为我用8266的时候,没有用过idf工具,所以没办法回答,不过还是建议先看py工具的源码,最近我的项目是esp32,我自己使用esptool做了生产及相关的具有gui界面的工具,看了下源码,里面是包含了esp8266和esp32的接口,想必最新的idf工具也是这样
2.串口下载,我的esptool工具里,是有flash容量检测的接口的,你可以留意下工具源码,或者menuconfig里flash部分的设置没有设置对

#37 Re: ESP32/ESP8266 » 编译esp-aliyun的两个例程,遇到了问题,求助。 » 2020-04-11 13:35:59

Gentlepig 说:

第二个问题,在报错文件里加入了#include "esp_sleep.h"后,通过编译。
不过下载程序,启动后,还是报错:

[inf] wrapper_mqtt_subscribe(2879): mqtt subscribe packet sent,topic = /sys/a10FtPOWmu8/esp32_modbus_test1/thing/property/desired/delete_reply!
I (6705) factory_rst: Quick reboot timeout, clear reboot times
I (6715) app main: IOTX_AWSS_BIND_NOTIFY
user_awss_status_event_handler.68: Awss Status 4111

***ERROR*** A stack overflow in task Tmr Svc has been detected.

Backtrace:0x40090623:0x3ffbd480 0x400902e9:0x3ffbd4a0 0x40092ffd:0x3ffbd4c0 0x400946a2:0x3ffbd540 0x400930f0:0x3ffbd560 0x400930a6:0x3ffd6530 0x0000027d:0x401014d4 |<-CORRUPTED
0x40090623: panic_abort at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/esp_system/panic.c:330

0x400902e9: esp_system_abort at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/esp_system/system_api.c:68

0x40092ffd: vApplicationStackOverflowHook at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/freertos/xtensa/port.c:436

0x400946a2: vTaskSwitchContext at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/freertos/tasks.c:2769

0x400930f0: _frxt_dispatch at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/freertos/xtensa/portasm.S:431

0x400930a6: _frxt_int_exit at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/freertos/xtensa/portasm.S:231

0x401014d4: sntp_retry at /home/any/EclipseWorkship/MCU/ESP32/esp-idf/components/lwip/lwip/src/apps/sntp/sntp.c:367

从你的log里看,是任务Tmr Svc的栈溢出了,你适当调整下试试

#38 Re: ESP32/ESP8266 » 编译esp-aliyun的两个例程,遇到了问题,求助。 » 2020-04-10 17:41:19

分区文件csv各个键值部分的说明
参考分区表 esp32 — ESP-IDF 编程指南 latest 文档
报错信息是分区表不对应bootloader,你跑的aliyun的例程,也应烧对应的例程的Bootloader
可以参考

$IDF_PATH$/components/bootloader_support/src/bootloader_utility.c

#40 Re: ESP32/ESP8266 » 编译esp-aliyun的两个例程,遇到了问题,求助。 » 2020-04-10 16:39:01

aliyun没跑过
第一个问题,看提示应该是分区表,你检查下你的程序对应的分区表
第二个问题,像你说的一样,配置文件有没有对应的宏关闭了
我是来水贴的 cool

#43 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » littlevgl多界面切换问题 » 2020-01-15 10:11:14

我的界面切换思路也差不多
也是创建一个base_obj作为界面的parent控件,其他界面元素都以该控件为parent,切换时删除旧的base_obj,创建新的base_obj;
至于hide操作整个base_obj没试过,但是在操作界面内其他元素是没有问题的,比如一个列表选择后显示对应的图表

Blizzard 说:

好像确实不行,界面切换,我是直接创建,删除,再创建,再删除这样循环

#44 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » littlevgl多界面切换问题 » 2020-01-15 09:13:26

不管用,具体是怎么不管用?没有隐藏掉当前界面?还是要切换的界面没有出现?还是其他? neutral

#47 Re: 好钜润半导体(TIKY) » 早上起来刷根天线,无意中看到好钜润更新了一个板子,不知道啥时候更新的,大家看看 » 2020-01-11 09:49:53

看店铺标价,单零卖应该就是88,液晶的话应该是他店里这款https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-1175222619.26.69975228i8Alrv&id=527324515844
不过发现就是没有触摸

红白机 说:

看起来不错, 这个液晶是什么型号, 单卖什么价格呢?

#48 好钜润半导体(TIKY) » 早上起来刷根天线,无意中看到好钜润更新了一个板子,不知道啥时候更新的,大家看看 » 2020-01-11 09:29:09

夏雨夜寐
回复: 30

早上起来刷根天线,无意中看到3.2寸800x480全视角IPS液晶屏WIFI物联网智能显示屏M4
地址淘宝网 https://item.taobao.com/item.htm?spm=a1z10.5-c.w4002-1175222619.19.6d51516cIIPLZo&id=608671060640
产品特点:

1、IPS全视角液晶屏,阳光下可视度高;

2、高分辨率800*480;

3、超大存储空间:16MB的FLASH及8MB的RAM,可以运行复杂的界面程序;

4、采用高性能TK499芯片,240MHz,带FPU,支持硬件浮点运算;

5、USB方式下载,可以用USB更新程序,图标及字库;

6、带WIFI模块,支持无线显示,利于接入IoT物联网

6、提供丰富外设:串口、SPI、GPIO、USB,SDIO、五向按键、3路LED灯;

7、性价比高,88元包含了高性能M4芯片,16M FLASH与8M RAM及高分辨率TFT屏,可以直接片上编程,比串口屏灵活,速度更快;

8、提供参考程序,原理图等;

9、批量客户支持定制;
O1CN01hQNgSm1UGvB3fLSAs_!!23732491.jpg
O1CN01j1cWcj1UGvAyc0jtQ_!!23732491.jpg

#49 Re: DIY/综合/Arduino/写字机/3D打印机/智能小车/平衡车/四轴飞行/MQTT/物联网 » 闲鱼捡漏,拆解一台收银机【多图警告,流量党劝退】 » 2019-12-23 13:12:17

有很多公司都是直接用的,快啊

伍零壹 说:

我靠  做这个项目的人也是不缺钱   直接上树莓派啊

#57 Re: DIY/综合/Arduino/写字机/3D打印机/智能小车/平衡车/四轴飞行/MQTT/物联网 » 感谢@weiyongwill 赠送的某银行淘汰终端机,AM3354 CPU,运行Android【开车了, 凑满50台就发车, 60元+运费】 » 2019-11-29 17:47:22

哈哈,团长,来一块

weiyongwill 说:

现在开团,凑够50个(3天之内吧,要快,迟了怕没了),我去拿了帮大家发货(老板是垃圾佬,基本不零卖)。
需要的在下面留言,要几个

#59 Re: Qt/MSVC/MINGW/C++/MFC/GTK+/Delphi/BCB » 一个商业化的Qt组件 (多图预警!!!考验剩余流量和网速) » 2019-11-29 13:15:41

这个做自定义控件挺六的,去年自己写工具时,用到自定义控件,搜到过这个大全了

#65 Re: RT1050/RT10XX » keil MDK 5.25 下载 » 2019-11-19 16:15:34

这么大,竟然快1G了,没注册机,明年就不好玩了

晕哥 说:
[uVision updated to V5.29.0.0] ◾Added: option in License Manager to request a 30-day evaluation license of the MDK Professional edition.
◾Added support for v8.1-M architecture extensions (requires MDK Professional).
◾Enhanced: auto-generated scatter files can manage multiple modules with the same name.
◾Enhanced: librarian is skipped in build if all contained objects are up to date shortening the build times.

◾[Arm Compiler included] ◾Included Arm Compiler 5 version 5.06u6 - unchanged: see Release Notes for further details.
◾Updated Arm Compiler 6 to version 6.13 - see Release Notes for further details.

◾[Software Packs included] ◾Keil - MDK Middleware 7.10.0 ◾Updated File System Component to version 6.13.0 ◾Added ftime_set and ftime_get functions used to manage the file or directory timestamps.
◾Added status codes fsAlreadyExists and fsNotDirectory that allow more control when using fmkdir, frmdir and fchdir.
◾Added debug configuration for debugging with Event Recorder.
◾Added second instance of the RAM drive (drive R1).
◾Corrected bug in FAT file name compare for names with equal root and 13 characters in length (LFN).
◾Corrected bug in FAT cluster handling when deleting file which could cause false out of space error.
◾Corrected bug in fmedia which could cause non-initialized pointer access when using uninitialized drive.

◾Updated Network Component to version 7.12.0 ◾Added support for Digest access authentication in HTTP server.
◾Added support for user accounts in HTTP server Digest authentication.
◾Added support for passwords stored as MD5 hash value HA1.
◾Added support for the WiFi interface.
◾Added send frame buffering, if the MAC address in the IPv6 NDP cache is not resolved (the first call to the netUDP_Send function does not fail anymore).
◾Corrected possible memory corruption in CHAP authentication, when PPP interface used in client mode, and the server generates CHAP challenges of less than 16 bytes.
◾Corrected memory issue when receiving fragmented broadcast message.
◾Corrected return code from BSD_EINVAL to BSD_ESOCK if BSD socket is not created.
◾Corrected filtering for link-layer addressed UDP messages (datagrams with correct MAC address and invalid IP address are no longer received).
◾Corrected Neighbor Discovery failure, when the requested global IPv6 address is on-link.
◾Corrected problem in BSD socket timeouts, when the blocked receiving and blocked sending in the socket are simultaneously used from two threads.
◾Corrected problem, that the device is not accessible to IPv6 after changing the MAC address.
◾Corrected possible TCP socket retransmission failure in keep-alive mode for very short time limits, when the keep-alive timer expired before the retransmission timer.
◾Corrected CHAP authentication failure in the PPP interface, when used in client mode.
◾Improved and optimized network core processing.
◾Improved versioning, added library version to a map file (i.e.: "network_ip4_release_v7.10.6").
◾Improved access to ethernet, serial and modem drivers.
◾Improved Event Recorder debug support and updated documentation for the debug events available in the Network Services.
◾Optimized send_frame functions for network interfaces.
◾Updated IGMP multicast address filtering.
◾Updated lease renewal in the DHCP client also updates the default Gateway.

◾Updated USB Component to version 6.13.7 ◾Added thread name for all threads created by the USB stack.
◾USB Host ◾Corrected CMSIS-RTOS1 compatibility mode compilation error in USART_CDC_ACM.c and USART_PL2303.c templates.
◾Corrected USBH_Device_GetController, USBH_Device_GetPort, USBH_Device_GetAddress, USBH_Device_GetVID, and USBH_Device_GetPID functions to work in device enumeration Initialize callbacks.

◾USB Device ◾Corrected delay on USB out transfer when multiple USB devices are used.
◾Corrected handling if endpoint configuration in driver fails.
◾Corrected MSC class support for sector size different than 512.
◾Corrected MAC_str_to_addr function in Ethernet RNDIS driver.
◾Corrected MAC_str_to_addr function in USBD_User_CDC_ACM_RNDIS_ETH.c and USBD_User_CDC_ACM_RNDIS_VETH.c templates.
◾Improved USB input buffers alignment (aligned to 32 bytes, support cache up to 32 bytes per cache line).


◾Unchanged Graphics Component to version 5.50.
◾Unchanged Board Support Interface specification.

◾ARM - CMSIS 5.6.0 ◾Updated:  CMSIS-Core (Cortex-M) to version 5.3.0. ◾Added provisions for compiler-independent C startup code.
◾Corrected a compilation issue in cmsis_armclang_ltm.h introduced in 5.2.0.

◾Updated:  CMSIS-Core (Cortex-A) to version 1.1.4. ◾Corrected an issue in the Floating Point Unit Function __FPU_Enable().
◾Modified functions __get_SP_usr() / __set_SP_usr() to work with ArmClang.
◾Corrected a zero argument handling in function __CLZ().

◾Updated: CMSIS-DSP to version 1.7.0. ◾Modified arm_math.h . ◾Removed dependance on cores.
◾Deprecated __SIMD32 and introduced new functions for SIMD accesses.

◾Added compilation flags for FFT. It is now possible to include only the tables required for FFTs.

◾Updated: CMSIS-NN to version 1.2.0. ◾Added arm_status arm_depthwise_conv_u8_basic_ver1 function for depthwise convolution with asymmetric quantization.
◾Added arm_nn_sat_doubling_high_mult and arm_nn_divide_by_power_of_two support functions for quantization.

◾Updated: CMSIS-RTOS to version 4.82. ◾Corrected: Recursive Mutex 16-bit lock counter is now checked to not overflow.

◾ Devices ◾Generalized C startup code for all Cortex-M family devices.
◾Updated Cortex-A memory regions and system configuration files.

◾ Utilities ◾Updated SVDConv to version 3.3.27.
◾Updated PackChk to version 1.3.87.


◾ARM - CMSIS-Driver 2.4.1 ◾Added CMSIS-WiFi driver for the Espressif ESP8266 WiFi module.
◾Updated CMSIS-WiFi driver for the Inventek ISM43362 WiFi module to version 1.2.0. ◾Corrected SocketClose functionality.
◾Updated Initialization function to handle unavailable reset pin.
◾Updated functionality to comply with CMSIS WiFi Driver Validation.
◾Added debug of SPI traffic to Event Recorder.
◾Corrected PHY_LAN8742A power down bit definition.


◾Keil - Arm Compiler 1.6.2 (Software Pack) ◾Added ARMV81MML to the list of supported processors.
◾Updated EventRecorder.scvd: ◾using level 'Detail' for start/stop A event group to not show in red.
◾adding prefix attribute to enable linking the event property to the doxygen documentation.



◾[Target debugging] ◾ULINKpro: ◾updated firmware to version 1.59 adding support for JTAG-DPv3 (ADIv6).
◾added support for CoreSight DAP v3 based on ADIv6.
◾added support for SDF files from CMSIS debug description for complex trace topologies.
◾added support for switch out of dormant state for CoreSight SW-DPv2 (Serial Wire Debug Port).

◾ULINKplus: ◾added support for CoreSight DAP v3 based on ADIv6.
◾added support for SDF files from CMSIS debug description for complex trace topologies.
◾added support for switch out of dormant state for CoreSight SW-DPv2 (Serial Wire Debug Port).

◾ULINK2: ◾added support for SDF files from CMSIS debug description for complex trace topologies.
◾added support for switch out of dormant state for CoreSight SW-DPv2 (Serial Wire Debug Port).

◾CMSIS-DAP: ◾added support for CoreSight DAP v3 based on ADIv6.
◾added support for SDF files from CMSIS debug description for complex trace topologies.
◾added support for switch out of dormant state for CoreSight SW-DPv2 (Serial Wire Debug Port).

◾ST-LINK (STMicroelectronics): ◾updated debug driver to version 3.0.7.0.
◾including firmware upgrade utility ST-LinkUpgrade.exe version 2.5.2.

◾NULink (Nuvoton) updated debug driver to version 3.01.6951.
◾Stellaris ICDI support has been removed.

◾ [Cortex-M Architecture models] ◾Updated Fixed Virtual Platform (FVP)  support to version 11.8.59.

◾[Supported Operating Systems] ◾Refer to System Requirements Overview for hardware and operating system requirements.

https://armkeil.blob.core.windows.net/eval/MDK529.EXE

MDK 529 下载。

#66 Re: 全志 SOC » 请问大家荔枝派网盘里面的 V3s TF卡 debian 桌面镜像有哪位朋友跑起来了? » 2019-11-19 10:30:35

大佬想找个理由睡一觉……你看,我在等--它。启。。动。。。

Jmhh247 说:

一个小。。。。。。时,比。。。闪电。。。还。。。。慢。。。。,大佬你想干啥

#67 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » LittlevGL新版本在线生成字体还可以用么? » 2019-11-18 11:02:03

你如果单单要使用awesome图标的话,我这里有个24*24的awesome的c文件
builtin_Symbol24P.zip,已转换好的当前awesome已有的图标
使用参考lvgl内部的图标宏
其实你也可以直接在awesome官网下了ttf文件,然后在lvgl转换

cdft 说:

不限定任何方式,只要是能生成littlevgl 可用的awesome图标字体就可以。

#69 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » LittlevGL新版本在线生成字体还可以用么? » 2019-11-16 11:56:48

论坛里有网友阿里写的lvgl_font_convert工具,用起来不错,你找下看

cdft 说:

最近发现老版本上 https://littlevgl.com/ttf-font-to-c-array-old 可以在线生成字体,但是新版本 https://littlevgl.com/ttf-font-to-c-array 上尝试生成字体,一直无法成功。。请问下有成功的么?

#78 Re: ESP32/ESP8266 » 如何实现ESP32开发板接入物联网平台,实现通过远程app与ESP32进行通信和控制? » 2019-09-29 09:51:22

dreams2084 说:

如何实现ESP32开发板接入物联网IoT平台,实现远程app与ESP32进行通信和控制?
百度的DuerOS平台除了提供智能语音服务还有物联网功能吗?若有如何实现及其例程?

试试emqx,可以自己搭一个测试,下过如下图
FluxBB bbcode emqx

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