2016年10月25日 (二) 16:38的最后版本

[编辑] 1 Overview

OpenLight Bulb：

OpenLight Controller：

[编辑] 2 Quick Start

• Power on, waiting 8s to light

• Light is flashing slowly in red means waiting for network connection

• If the light is not flashing in red, please turn on and off 3 times, (eg. turn on - light on - turn off, 3 times) the light will be in red gradient for network connection

• Connect mobile to Wifi then scan QR code in WeChat to click “Network Connection”

• Enter WiFi password, click "Connect" then waiting for network connecting complete. (P.S. only 2.4G WiFi is applicable, 5G WiFi and WiFi enterprise-level security certifications are not applicable)

• Complete WiFi configuration, WeChat will be in LAN devices discovery mode. Available devices list will be visible.

• Click the first device then press "Link Device" button to bind the device. (P.S. if the device has been binding, then the button at bottom is "Enter Official Account")

• Finish above steps, please press "Enter Official Account" button then click "My Device" button to find your binding devices list. Click the device to enter control page.

Note：

• If more people need to control the device, please connect to the same router and scan the same QR code while the device is power on. Click "Device connected and skip" -> "Link Device"->"Enter Official Account" to control smart devices

• To connect the device to another router in same network, please turn on and off the light 3 times and scan the QR code in Wechat to connect the network, binding is not necessary.

• To transfer the device to different place(networks), the light will be in red gradient waiting for networks matching. To connect networks please just scan QR code in WeChat.

• Turn on and off the light 6 times to restore the factory settings

[编辑] 3 API

[编辑] 4 Firmware

[编辑] 4.1 Compile

Getting noduino-sdk：

$ git clone --recursive git://github.com/icamgo/noduino-sdk.git noduino-sdk

Generate toolchain (you need Python 2.7)：

$ cd noduino-sdk/toolchain
$ ./gen.py

Compile：

$ cd ../sketch/open-light
$ make

The generated firmware is located in build/ dir named user1.bin annnd user2.bin

Window environment please refer to Getting Started with Noduino SDK on Windows, you can get how to setup the basic developmennt environment

[编辑] 4.2 Upload

[编辑] 4.2.1 Serial

Prepare a USB2UART board, something like FT232RL or CP2102/CP2104:

Upload firmware throught serial for OpenLight Bulb:

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Upload firmware throught serial for OpenLight Controller:

• USB2UART_GND ------> SmartNode_GPIO0 / Bulb_GPIO0
• USB2UAR_GND -----> SmartNode_GND / Bulb_GND
• USB2UAR_RXD -----> SmartNode_TX / Bulb_TX
• USB2UAR_TXD -----> SmartNode_RX / Bulb_TX

Connect USB2UAR_VCC3.3 -----> SmartNode_VCC / Bulb_3V3 at last

ESP8285 will be enter upload mode, we can upload the compiled firmware through serial using following commands in Linux:

$ cd /path/to/noduino-sdk/sketch/open-light
$ make produce ESPPORT=/dev/ttyUSB1

In windows:

$ make produce ESPPORT=COM7

COM7 is your USB2UART device

In MAC OS, maybe it's:

$ make produce ESPPORT=/dev/cu.SLAB_USBtoUART

/dev/cu.SLAB_USBtoUART is your USB2UART device

[编辑] 4.2.2 Online

Access

http://dev.noduino.org/openlight

Login

• Username: noduino
• password: noduino1234

Click the "Add files", select the user1.bin and user2.bin located in /path/to/noduino-sdk/sketch/open-light/build/

Then click "Start upload" to upload the user1.bin and user2.bin into the server temporaily

[编辑] 5 Hardware

[编辑] 5.1 LED

OpenLight 铝基板上，LED 灯珠默认布局为：

• Red LED 6 颗串联，正极接 12V，负极接控制板 R (MY9291 之 OUTA)
• Green LED 4 颗串联，正极接 12V，负极接控制板 G (MY9291 之 OUTB)
• Blue LED 4 颗串联，正极接 12V，负极接控制板 B (MY9291 之 OUTC)
• White LED x8 (4 颗串联为一组， 2 组并联，正极接 12V，负极接控制板 W (MY9291 之 OUTC))

LED 灯珠 (5730) 单颗特性为：

• 尺寸 5.7 x 3.0 mm
• 最大电流 150mA (0.5W)
• VF 为 3.0 - 3.4V (Red LED为 2.0 - 2.2V)
• 亮度 50 - 55 lm

LED 灯珠其实就是一个二极管，只要有一个正向导通电压 (VF) 就能发光，一般为 2 - 3.5V，低于此电压灯珠不能发光，高于此电压，灯珠会烧坏。

控制灯珠亮度的，是电流大小，因此调光灯实际调得是电流的大小。电流超过额定电流，会加速灯珠老化，缩短灯珠寿命

[编辑] 5.2 MY9291

OpenLight 采用台湾明阳 4 通道恒流 LED 驱动芯片，控制 R, G, B, W 四路 LED 灯珠

Feature：

• 3.3 - 5V 电源电压范围(±10%)
• 每个通道 5 - 350 mA 恒流输出范围
• 可承受最大输出电压 24V，支持多颗 LED 串联
• 外接器件少，仅需四个外接电组来设定四組恆流电流

Block Diagrame：

电源为恒压源，可以多片级联，MCU 的控制线就两个：DI 和 DCK

电源电压与灯珠串并联确定：

• 12V 电源的情形，如选用 VF 为 3V 左右的 LED 灯珠，则需要 4 颗串联，这样每颗灯珠分到电压为 3V 左右；2V 左右的灯珠，则需要 6 颗串联
• 24V 电源，则 3V 灯珠 8 颗串联，2V 灯珠 12 颗串联
• 6V 电源，则 3V 灯珠 2 颗串联，2V 灯珠 3 颗串联

输出限流

MY9291 单路最大输出 350mA，为节约灯珠寿命，可限制通过灯珠的最大电流以节约灯珠寿命

最大输出电流限制：

 R = 380mV / Iout

满输出 350mA，则每路的限流电阻都得选为：1R，1/4 W 够用

OpenLight 球泡灯，R/G/B 选用电阻 4R7，限流为 81mA 左右，W 用两个 4R7 并联 2.35R 左右，限流为 162mA 左右。这样基本限制经过每颗 5730 (0.5W) 灯珠的电流为 80mA 左右，以延迟灯珠老化。这样整体功率被限制在 5W，如要增加亮度，可将这 5 个 4R7 电阻替换为 3R0，可将输出功率增加到 7W

[编辑] 6 Power

[编辑] 6.1 12V

220V 转 12V 恒压电源模块，额定 12W，1A 电流输出

[编辑] 6.2 3.3V

ESP8266/ESP8285 chip、MY9291/MY9231 chip、SPI Flash chip are all 3.3V power.

[编辑] 6.2.1 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

[编辑] 6.2.2 MP2359

• Wide 4.5V to 24V Operating Input Range
• 1.2A Peak Output Current
• 0.35Ω Internal Power MOSFET Switch
• Stable with Low ESR Output Ceramic Capacitors
• Up to 92% Efficiency
• 0.1μA Shutdown Mode
• Fixed 1.4MHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Output Adjustable from 0.81V to 15V