RFID sensor

[NirViaje]

RFID sensor for temperature, humidity, pressure, etc.

with RFID as User Interface, both analog and switch on/off etc

RFID传感器作为交互界面以及环境感知

[NirViaje]

Developer Resources

Running a Local Build

In root directory of your Vuese project: 1. Run `yarn run build` 2. Run `yarn link` In project that you want to use the libaries: 1. If `@vuese/cli` is not yet installed, add it: `yarn add @vuese/cli` 2. Run `yarn link vuese-monorepo` 3. Navigate to `node_modules/.bin` and open `vuese.cmd` and `vuese` 4. Change any instance of `@vuese` to `vuese-monorepo\packages` in both files To generate the documentation locally, run the vuese binary from `node_modules/.bin` : 1. Run `node_modules\.bin\vuese gen` (cmd) or 1. Run `node_modules/.bin/vuese gen` (powershell)

Samples

#### Component Notation 1. [Samples/Components Folder](/samples/components) 2. [Vuese Explorer](https://vuese.github.io/vuese-explorer/) #### Component Documentation 1. [Samples/Docs Folder](/samples/docs)

[NirViaje]

admin login

• https://files.000webhost.com
• ixdweb - Pb%%@vW&AH4F@VwoOuA1

乐鑫云端

• https://blog.csdn.net/yu__jia/article/details/77488588
• http://iot.espressif.cn/
• https://github.com/EspressifApp/IOT-Espressif-Android-APK

阿里云物联网平台

• https://help.aliyun.com/product/30520.html
  • alink_smart_device_demo for Ali-iot
  • https://github.com/NirViaje/nirviaje.github.io/issues/58

ESP32+Arduino快速连接阿里云物联网应用

• https://dev.iot.aliyun.com/demo/detail/748891

天猫精灵AliGenie

• https://doc-bot.tmall.com/docs/doc.htm?spm=0.7629140.0.0.682c17800D8fQR&treeId=393&articleId=107522&docType=1
• https://github.com/zhusaidong/IntelligentSpeakers/blob/master/docs/AliGenie.md
• https://g.alicdn.com/aic/ilop-docs/2018.10.31/index.html

php cloud server from instructables

• https://www.instructables.com/id/Build-Own-Secured-PHP-IOT-Website-Free-Arduino/
• https://hackernoon.com/create-your-first-arduino-node-js-iot-visualization-app-in-under-15-minutes-619f8e6f7181

网上有rn的封装

• https://github.com/tuanpmt/react-native-smartconfig
• https://github.com/EspressifApp

[NirViaje]

ESP32

20 GPIO, compare to 32 GPIO of esp32 WROOM

• https://docs.m5stack.com/#/zh_CN/core/gray

Notice2：M5PORT 说明（不同颜色的GROVE端口分别代表不同的功能）

• 红色的PortA（21/22），为默认的I2C协议接口
  • PortA（红色）被作为信号总线连接至是ESP32的GPIO21/22 ，没有AD通道转换方案，因此不能用作模拟输入使用
• 黑色的PortB（26/36）, 支持DA/AD转换与信号总线通信
• 蓝色的PortC（16/17）, 支持Uart串口通信.在使用Unit进行功能拓展的时候，只需要匹配二者的端口的颜色，相应的进行连接即可正常使用.不仅提供简洁的硬件连接方式，还支持引脚的重映射

ADC端口

• ADC1(8 通道 GPIO 32-39)
• ADC2(10 通道 GPIO 0，2，4，12-15，25-27)

使用AD读取功能：

1. 使用杜邦线连接机身侧面的能够AD转换的引脚
2. 堆叠一个M5GO底座，使用其提供PortB
3. 使用PbHUB连接至PortA，拓展出6个PortB

有关引脚分配和引脚重映射的更多信息，请查阅ESP32数据手册

工具链

• ESP-Jumpstart：快速构建基于 ESP32 的产品
  • https://github.com/espressif/esp-jumpstart
• Arduino ESP8266/ESP32 Exception Stack Trace Decoder
• ESP32 secure/encrypt and Factory Flow
• https://docs.espressif.com/projects/esp-idf/zh_CN/stable/api-guides/build-system.html

esp32_technical_reference_manual_en

• https://www.espressif.com/sites/default/files/documentation/esp32_technical_reference_manual_en.pdf

Great Docs on everything about esp8266

• https://tttapa.github.io/ESP8266/Chap15%20-%20NTP.html

Xuhongv notes on ESP

• https://github.com/xuhongv/StudyInEsp32
• https://blog.csdn.net/xh870189248/article/category/7667042

ESP Smart-Config

• https://www.espressif.com/sites/default/files/documentation/esp-touch_user_guide_en.pdf

Firmware

• https://github.com/espressif/arduino-esp32/blob/master/libraries/WiFi/examples/WiFiSmartConfig/WiFiSmartConfig.ino

ESP-Touch

• ESP-TOUCH编码规则及解码
  • https://github.com/EspressifApp/EspRelease

/**
  * @brief     Set mode of SmartConfig. default normal mode.
  *
  * @attention 1. Please call it before API esp_smartconfig_start.
  * @attention 2. Fast mode have corresponding APP(phone).
  * @attention 3. Two mode is compatible.
  *
  * @param     enable  false-disable(default); true-enable;
  *
  * @return
  *     - ESP_OK: succeed
  *     - others: fail
  */
esp_err_t esp_smartconfig_fast_mode(bool enable);

  //Init WiFi as Station, start SmartConfig
  WiFi.mode(WIFI_AP_STA);
  esp_smartconfig_fast_mode(true);  //with this line, 26821ms to connect successful
  WiFi.beginSmartConfig();

Low power

Data acquisition or abnormal detection (GPIO trigger is not supported and frequent data uploading is not needed)

on battery supply

当ESP8266以AP方式连接到路由器且运行于Modem-sleep模式时，它会在两次DTIM Beacon间隔内关闭WIFI电路以达到省电效果，在下次Beacon到来前自动唤醒。睡眠时间由路由器的DTIM Beacon时间决定。睡眠的同时ESP8266可以保持与路由器的WI-FI连接，并通路由器接受来自手机或者服务器的交互信息。

一般路由器的DTIM Beacon间隔为100ms~1,000ms

作者：梁睿坤 链接：https://www.jianshu.com/p/8533e5a52890 来源：简书 简书著作权归作者所有，任何形式的转载都请联系作者获得授权并注明出处。

• https://blog.voneicken.com/2018/lp-wifi-esp32-light/
• ESP32 测试（五）： Light-sleep 模式下的电流功耗测试及特性(使用 Wi-Fi)
• https://www.espressif.com/sites/default/files/documentation/9b-esp8266-low_power_solutions_cn.pdf
• https://github.com/espressif/esp-idf/tree/release/v3.2/examples/wifi/power_save
  • https://blog.csdn.net/qq_27114397/article/details/106451678
  • http://club.gizwits.com/thread-5969-1-1.html
• https://github.com/EspressifSystems/low_power_voltage_measurement/wiki
• Beacon时槽大小到底对路由器有什么影响

ESP.deepSleep(20e6); // 20e6 is 20 microseconds

• https://www.losant.com/blog/making-the-esp8266-low-powered-with-deep-sleep
• https://electronza.com/esp8266-running-on-battery-power/
• measuring the input voltage of ESP8266 – that would be V3.3
  • https://openhomeautomation.net/esp8266-battery

ULP

install the toolchain -

• https://github.com/espressif/esp-idf/issues/483#issuecomment-344547335

ESP32自带独立的低功耗协处理器ULP，平均消耗电流4.7uA

• https://blog.csdn.net/espressif/article/details/78608569
• https://www.youtube.com/watch?v=-QIcUTBB7Ww
• https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/ulp_macros.html
• https://github.com/duff2013/ulptool
• ULPCC, A C compiler targeting the ULP coprocessor on the ESP32 chip
  • https://github.com/jasonful/lcc
• ESP32 - ULP 协处理器在低功耗模式下读片内霍尔传感器 HALL SENSOR
  • https://blog.csdn.net/espressif/article/details/79131425
  • https://blog.csdn.net/espressif/article/details/79359437
• ESP32 的 ULP 协处理器简介和汇编编译环境设置
  • https://blog.csdn.net/espressif/article/details/79131076

ULP 协处理器的主频是 8MHz， ULP 协处理器在正常工作时，瞬时电流消耗为 1.4 - 2.2 mA 左右。理想的 ULP 协处理器用法是较长的周期性进入 Deep-Sleep 和短暂的醒来工作来换取功耗平衡。 此例子为了演示效果，我们的设定 ULP 协处理器睡眠周期设置为 3 S，醒来工作的周期不足 1ms， 用电流表测得电流值维持在 4.7uA

作者：espressif 来源：CSDN 原文：https://blog.csdn.net/espressif/article/details/78608569 版权声明：本文为博主原创文章，转载请附上博文链接！

RTC

• syncing with NTP if you use internal sntp functions
• https://randomnerdtutorials.com/esp32-ntp-client-date-time-arduino-ide/
• Re: How the built-in RTC works, ULP in Deep Sleep consumes ~ 150uA
  • https://www.esp32.com/viewtopic.php?t=3705
• Switch RTC clock to external 32kz xtal #1225
  • https://github.com/espressif/arduino-esp32/issues/1225

The only parts of the chip which can still be powered on are: RTC controller, RTC peripherals (including ULP coprocessor), and RTC memories (slow and fast).

ulp_io_number = rtc_gpio_desc[gpio_num].rtc_num; /* map from GPIO# to RTC_IO# */

The minimum wakeup time represents clock cycles spend by ULP's FSM on internal tasks:

1. Time to wakeup - 2 clock cycles
2. Waiting until the 8M clock is stable - 16 clock cycles
3. Preparation to go to sleep - 2 clock cycles

This makes the total of 20 clock cycles or 20/150KHz = ~133us

• https://esp32.com/viewtopic.php?f=2&t=7081

ULP coprocessor is started by a timer. The timer is started once ulp_run is called. The timer counts a number of RTC_SLOW_CLK ticks (by default, produced by an internal 150kHz RC oscillator). The application can set ULP timer period values (SENS_ULP_CP_SLEEP_CYCx_REG, x = 0..4) using ulp_set_wakeup_period function.

• https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/ulp.html#ulp-program-flow

Multi-core tasks

TaskHandle_t TaskA, TaskB;

void Task2code(void * pvParameters) {
  while(true) {
    ;
  }
}

void setup() {
  xTaskCreatePinnedToCore(
             Task2code,  /* Task function. */
             "Task2",    /* name of task. */
             10000,      /* Stack size of task */
             NULL,       /* parameter of the task */
             1,          /* priority of the task */
             &TaskA,     /* Task handle to keep track of created task */
             1);         /* pin task to core 0 */
}

• https://randomnerdtutorials.com/esp32-dual-core-arduino-ide/

Audio

• Coding a Sound Driver on the ESP32 ULP
  • https://www.youtube.com/watch?v=6PGrsZmYAJ0
• https://www.xtronical.com/basics/audio/digitised-speech-sound-esp32-playing-wavs/
  • https://www.youtube.com/watch?v=gxpHDUHcBMk

NVS: Non-volatile storage

• ESP8266/ESP32 NVS 基本操作
  • https://blog.csdn.net/espressif/article/details/84749096

[NirViaje]

Handnotes

• Advanced library installation for PlatformIO

\.platformio\penv\Scripts> .\pio upgrade

• Adding ability to include arduino-esp32 as component for espidf builds #142
• 预先build ESP-IDF和Arduino库以避免不必要的编译开销 //test

Install ESP32 develop kits

install esp msys32 package

• https://github.com/VirgiliaBeatrice/esp32-devenv-vscode/blob/master/tutorial.md
  • https://github.com/xytpai/esp32-note/blob/b8ad540424cf98aab5a6c90bf2602cd17d667270/readme.md

• simply COM10 or other port in Windows
• To exit IDF monitor use the shortcut Ctrl+].
• make flash monitor to start serial monitor after finish compile and upload
  • idf.py -p PORT flash monitor

Copy example from ESP-IDF, here /esp is located in /msys32/home/user-name/esp/

cd ~/esp
cp -r $IDF_PATH/examples/get-started/hello_world .
$

Arduino on esp-idf

• To use as a component of ESP-IDF
• 安装时
  • https://docs.espressif.com/projects/esp-idf/zh_CN/stable/get-started/
• 安装后
  • https://docs.espressif.com/projects/esp-idf/zh_CN/latest/api-guides/build-system.html

~/esp-idf$ git checkout ebdcbe8c60a3b5a228d9e80335d869cc01c527ab
  265  cd arduino/
  266  git submodule update --init --recursive
  267  git log | grep 7df50a9
  268  git checkout 7df50a97d17b0953ea01cad0355410a66bd8b8b4

c for esp-idf, cpp for arduino.

Versions need to take care

1. ESP-IDF
2. Arduino
3. Gcc compiler and toolchain
4. target code

Network protocol

Web Server = TCP Server + Request header etc

TCP+Web Server/Client, AJAX, etc

• https://blog.csdn.net/Naisu_kun/article/details/80398667

AJAX

• https://www.w3schools.com/js/js_ajax_intro.asp
• https://www.w3schools.com/js/js_ajax_http.asp
• https://www.w3schools.com/js/js_ajax_http_send.asp

• http://www.lucadentella.it/en/2017/01/16/esp32-6-collegamento-ad-una-rete-wifi/

---

//fix with

• https://github.com/espressif/esp-idf/issues/2480

1. python -m pip install --upgrade pip
2. pacman -S mingw-w64-i686-python2-cryptography

network operations

HTTP

• https://blog.csdn.net/haif_city/article/details/78333213
  • GET
  • POST
  • PUT
  • DELETE

[NirViaje]

Parts in need

1. Wi-Fi link
   • smartconfig
     • with AP at the same time?
     • open the cover for smartconfig?
     • register multiple AP info
   • persistence of wifi connection information
   • if no smartconfig set wifi available (what if network error?
     • [ ] setup AP
     • get indicated by UI (no wifi connection? raised the AP?
       • try to connect the smartconfig wifi simultaneously, before anyone connect (the http?
     • get chance to reset smartconfig
       • or setup wpa
     • or use in standalone mode
   • OTA upgrade
2. low power
   • [ ] sleep
     • [ ] with wifi connection
   • [ ] ulp with ADC detection of extra Hall sensor
     • signal filtering under low power
   • [ ] RTC
     • ntp
3. UI with LED segments and other io
   • TM1637
   • [ ] beeper
   • cover hall
4. Charging
   • IP5306_I2C
   • low power alert/alarm by UI
5. network
   • long pooling
   • [x] data structure
     • pull data
     • push data
   • mqtt?
6. customize app
   • [ ] set the pack alert (queue
   • pack alert
     • [ ] beep and display
     • ending after the user took
     • timeout
     • data send back
7. sensor and calibration
   • [ ] calibration in manufacture
     • filtering
     • persistance storage
     • error detect
   • bias surpress
   • time calibrate