82 lines
2.8 KiB
Markdown
82 lines
2.8 KiB
Markdown
# ESP Wordclock
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## Setup
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### Initial Setup
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Install the firmware on the ESP:
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The ESP must be set into the bootloader mode, like [this](https://www.ccc-mannheim.de/wiki/ESP8266#Boot_Modi)
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The firmware can be downloaded with the following script:
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<pre>
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cd os/
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./flash.sh ttyUSB0
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</pre>
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Connect to the ESP via a terminal emulator like screen using a baud rate of 115200. Then format the filesystem and reboot the ESP with the following commands:
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<pre>
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file.format()
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node.restart()
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</pre>
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Then disconnect the serial terminal and copy the required files to the microcontroller:
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<pre>
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./tools/initialFlash.sh /dev/ttyUSB0
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</pre>
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### Upgrade
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Determine the IP address of your clock and execute the following script:
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<pre>
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./tools/remoteFlash.sh IP-Address
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</pre>
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## Hardware Setup
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Mandatory:
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* GPIO2 LEDs
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* GPIO0 Bootloader (at start)
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* GPIO0 factory reset (long during operation)
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Optinal:
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* ADC VT93N2, 48k light resistor
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* GPIO4 DS18B20 Temperatur sensor
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## MQTT Interface
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### Status
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* **basetopic**/brightness **Current brightness in percent**
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* **basetopic**/background **Current background color**
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* **basetopic**/row1 **Current background color**
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* **basetopic**/temp **Temperatur**
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### Commands
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* **basetopic**/cmd/single
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* ON **Set brightness to 100%**
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* OFF **Set brightness to 0%**
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* 0-100 **Set brightness to given value**
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* #rrggbb **Background color is set to hex representation of red, green and blue**
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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* **basetopic**/cmd/telnet
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* ignored **Stop MQTT server and start telnetserver at port 23**
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* **basetopic**/cmd/row1
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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* **basetopic**/cmd/row1
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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* **basetopic**/cmd/row2
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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* **basetopic**/cmd/row3
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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* For all rows...
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* **basetopic**/cmd/row10
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* 0-255,0-255,0-255 **Background color is set to decimal representation of red, green an blue**
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## OpenHAB2
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Tested MQTT with binding-mqtt 2.5.x
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### Configuration
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```
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Thing mqtt:topic:wordclock "Wordclock" (mqtt:broker) @ "MQTT" {
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Channels:
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Type dimmer : dim "Dimming" [ stateTopic="basetopic/brightness", commandTopic="basetopic/cmd/single" ]
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Type string : cmd "Command" [ commandTopic="basetopic/cmd/single" ]
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Type switch : active "Active" [ commandTopic="basetopic/cmd/single" ]
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Type colorRGB : background "Background" [ stateTopic="basetopic/background", commandTopic="basetopic/cmd/single", on="28,0,0", off="0,0,0" ]
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}
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```
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