ESP Wordclock

Setup

Initial Setup

Install the firmware on the ESP: The ESP must be set into the bootloader mode, like this

The firmware can be downloaded with the following script:

cd os/
./flash.sh ttyUSB0

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:

file.format()
node.restart()

Then disconnect the serial terminal and copy the required files to the microcontroller:

./tools/initialFlash.sh /dev/ttyUSB0

Upgrade

Determine the IP address of your clock and execute the following script:

./tools/remoteFlash.sh IP-Address

Hardware Setup

• GPIO2 LEDs
• GPIO0 Bootloader (at start)
• GPIO0 factory reset (long during operation)

MQTT Interface

• basetopic/cmd/single ** ON Set brightness to 100% ** OFF Set brightness to 0% ** 0-100 Set brightness to given value ** #rrggbb Bacground color is set to hex representation of red, green and blue ** 0-255,0-255,0-255 Background color is set to decimal representation of red, green an blue
• basetopic/cmd/telnet ** ignored Stop MQTT server and start telnetserver at port 23