Noduino NODEC
Chinese version: Noduino NODEC CN
目录 |
1 Overview
- Super mini, 15.5mm*17.8mm, 1 cent coin size
- ESP8285, built in 1MB Flash
- 2nd generation WiFi IoT model, independent WiFi nodes (MCU not necessary)
- 3.3v power supply
- Support up to 6 relay, sensor and OLED
2 Quick Start
Link 3.3V power supply (600mA output) to VCC&GND that is on the back of model;
Power on, the model will auto detect Wifi. If there is no available router can be detected, the model will be waiting for network connection. Please follow below indication to connect WiFi.
2.1 Setup WiFi
Make sure that your phone is connected to your WiFi router.
Scan the QR code in WeChat
Coming to below page:
Click "Connecting Network" button:
Enter WiFi password then click "Connect" to complete WiFi connection. (NOTE, this network connection model only apply to 2.4G router, unapplicable for neither 5G router nor Enterprise level security certification.
2.2 Link Device
Complete WiFi connection, WeChat will auto detect linkable devices in current routed environment and list them:
1st device, last 4 letters is the MAC address that can corresponds to the serial port output
Click the 1st device then click the "Link Device" on the bottom of next page. (Note, if this device has been linked, button at the bottom will be "Enter Official Account"
2.3 List device
Following above step, please click "Enter Official Account" button, all your linked devices will be listed in the menu "Smart Devices" (The second button on the bottom of the page)
2.4 Control Device
The default device name of this quick example is Noduino Ctrl5Relay". Click "Noduino Ctrl5Relay" in the device list page then coming to the control page:
Correspondence of Relay and model pins:
1. GPIO13(D4) control the 1st relay 2. GPIO12(D5) control the 2nd relay (pull up) 3. GPIO14(D6) control the 3rd relay 4. GPIO16(D7) control the 4th relay 5. GPIO4 (D8) control the 5th relay
Turn On/Off Relay in WeChat UI page. Corresponding GPIO will be increase or reduce physically.
3 Application
3.1 Relay Switch
通用 110V / 220V WiFi 微信电源开关:
110V/220V WeChat Power
内置Airkiss,手机控制 WiFi 智能开关,详情:Noduino_OpenOnoff_CN
Airkiss build-in, Mobile remote WiFi smart switch
3.2 多路继电器控制
Multi-channel Relay Control
110V / 220V WiFi 微信继电器开关,单路 250V/10A
110V/220V WiFi WeChat Relay switch, single channel 250V/10A
家庭自动化、智能家居。。。
Home Automation, Smart Home...
Archive: IBaihe-v2.0-layout.png | 600px ]]
底板设计文件在 github: https://github.com/icamgo/Noduino-iBaihe-Shield
Backplane design documents: github: https://github.com/icamgo/Noduino-iBaihe-Shield
3.3 四路 LED 控制
R, G, B, W 全彩 LED 控制器,微信 Airkiss,微信控制
OpenLight,最高支持 32W
3.4 窗帘电机控制
- 正转控制
- 反转控制
- 位置传感器读取
4 管脚接口
注意:模块只能 3.3V 供电,5V 供电会烧毁芯片,切记切记!
正面:
GPIO12 GPIO13 GPIO14 GPIO4 GPIO5 GPIO15
背面:
GPIO16 GPIO0 GND TX RX VCC
默认烧写的固件为 5 路继电器控制固件,使用的 GPIO 资源为:
1. GPIO13(D4) control the 1st relay 2. GPIO12(D5) control the 2nd relay (pull up) 3. GPIO14(D6) control the 3rd relay 4. GPIO16(D7) control the 4th relay 5. GPIO4 (D8) control the 5th relay
6 路继电器控制固件,第 6 路为: GPIO5 (D9) control the 6th relay
应用如需外接 I2C 口的传感器、OLED 屏等,可将 GPIO4 (D8) 和 GPIO5 (D9) 作为 I2C 之 SCL 和 SDA,参考示例:
- Noduino SHT2x SHT2X Digital Humidity & Temperature Sensor
- Noduino TSL2561 TSL2561 Digital Luminosity/Lux/Light Sensor
- Noduino BMP180 BMP180 Barometric Pressure/Altitude Sensor
- Noduino BMP085 BMP085 Barometric Pressure/Temperature/Altitude Sensor
- Noduino BH1750 BH1750 Digital Light Sensor
- Noduino PCF8563 PCF8563 I2C RTC Chip
- Noduino OLED SSD1306 I2C OLED Screen support
- Noduino I2C Scan Scan all the I2C devices
这样即便 GPIO4 和 GPIO5 用作 I2C,依然有 GPIO12, GPIO13, GPIO14, GPIO15, GPIO16, GPIO0 用作继电器控制
5 原理图
6 驱动继电器
模块是 3.3V 电平,驱动 5V 继电器,需要有个简单的外围电路:
继电器推荐 HKE HRS3FNH
SI2302 MOSFET 管,可用 DTC143ECA 替换 (此时可移去 R1)
此电路经大功率 1200W 感性负载、容性负载测试,稳定可靠,已大规模用于批量产品中。。。
多路继电器控制,复制该单元电路即可
7 按钮和 LED
默认固件支持:
- GPIO0 可以接一个按钮,按下接地。固件支持。短按反转所有继电器的状态,长按恢复出厂设置(清除 WiFi 配置、清除设备 ID ...)
- RX 接一个蓝 LED 到地。固件默认支持,用于指示 WiFi 状态
8 电源
模块供电电压 3.3V,正常运转所需电流 200mA,特殊情形瞬时电流可到 1A
所需电源之额定电流必须能到 600mA,电源电流不够,芯片会不稳定,最常见为无故重启
电源输出侧建议加 220uF / 470uF 电容蓄容,以应对芯片可能到 1A 的瞬时电流
DC-DC 芯片,推荐 AP2112 (5V 转 3.3V,小体积) / AMS1117-3.3 (12V-5V 转 3.3V,大电流) / WL2803G
8.1 AMS1117-3.3
- Feature
- 1000mA LDO
- Dropout voltage : 1.1V @ Iout = 800mA load current
- The quiescent current is typically 5mA
- Vin MAX = 15V
- SOT-223-3L package
8.2 WL2803G
需要低 dropout voltage 的场合,替换 AMS1117
- Feature
- 1000mA CMOS LDO
- Dropout voltage : 260mV @ Iout = 800mA load current
- The quiescent current is typically 150uA
- Vin MAX = 6.5V
- SOT-223-3L package
- Output 3.3V is marking 2803G**/YYWW [ ** - Voltage code (33: 3.3V), YY - Year code, WW - Week code ]
8.3 AP2112
- Feature
- 600mA CMOS LDO
- Low Dropout Voltage (3.3V): 250mV (Typ.) @ 600mA
- Low Quiescent Current: 55μA (Typ.)
- Low Standby Current: 0.01μA (Typ.)
- Vin MAX = 6.5V
- Provides SOT-23-5, SOT-89-5, and SOIC-8 packages
8.4 MP1470
宽电压输入,建议用 MP1470
- Wide 4.7V-to-16V Operating Input Range
- Fixed 500kHz Switching Frequency
- Over-Current Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.8V
- Available in a 6-pin TSOT-23 package
9 固件烧写
模块默认烧写的是微信控制 5 路继电器的固件,可自行刷写微信控制 6 路继电器的固件
模块自带 Bootloader,可直接通过串口刷写固件。
GPIO0 拉高是正常启动;拉低后再上电,模块会自动进入刷机模式
9.1 准备工具
模块设计时把编程刷机的接口都放在在背面,用一个顶针接上杜邦线,连上 USB 转 TTL 板,就能刷写固件
准备一个 5 pin 的顶针,此物某宝有售,烧录探针2.54 5P烧录工具
准备一个 USB 转串口板,此处我们使用一个 FT232RL USB 转串口板,此物某宝有售:FT232RL USB 转串口板
如下接线:
- USB_GND ------> NODEC_GPIO0
- USB_GND -----> NODEC_GND
- USB_RXD -----> NODEC_TX
- USB_TXD -----> NODEC_RX
以上接好后,最后 USB_VCC3.3 -----> NODEC_VCC 通电开机,即进入刷机模式
9.2 准备固件
获取 noduino-sdk:
$ git clone --recursive git://github.com/icamgo/noduino-sdk.git noduino-sdk
生成 toolchain (you need Python 2.7):
$ cd noduino-sdk/toolchain $ ./gen.py
编译:
$ cd ../sketch/ctrl6relay $ make
各平台下,Noduino SDK 使用,更多参考:
- Getting Started with Noduino SDK on Linux
- Getting Started with Noduino SDK on Mac OS X
- Getting Started with Noduino SDK on Windows
9.3 刷写固件
还是在 sketch/ctrl5relay 目录下,直接 make flash:
$ make produce
即可上传固件。不同平台下,你的串口设备号可能不一样,确认一下你的串口设备,比如在 Windows 下 FT232RL 板可能被识别为 COM3 (设备管理器里查看),则:
$ make produce ESPPORT=COM3
即可
10 常见问题
10.1 射频性能
出厂测试,保证家用环境下 WiFi 穿一堵墙,配网和控制可正常使用
如发现配网多次失败、经常掉线类似问题,可先用示波器确认电源纹波:
一般情形下,发送 11N MCS7 的包,电源纹波必须 < 80 mV。发送 11B 包时,电源纹波必须 < 120 mV
11 扩展阅读
- 更多问题参考: