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Set up build environment

MeterLogger for Kamstrup meters are programmed with a standard FT232RL FTDI USB to TTL serial adapter also used for Arduino. DTR pin is left unconnected. Here shown with a male-to-female adapter and a cap connected to the 3.3 V supply to help supplying power for the MeterLogger when programming the flash:

It can be ordered from https://www.banggood.com/FT232RL-FTDI-USB-To-TTL-Serial-Converter-Adapter-Module-For-Arduino-p-917226.html

MeterLogger is running at 3.3 V, so remember to configure the adapter for 3.3 V!

Given the serial programmer is connected to /dev/ttyUSB0, run:

git clone https://github.com/nabovarme/MeterLogger.git
cd MeterLogger
sudo docker build -t meterlogger:latest .
docker run -t -i --device=/dev/ttyUSB0 meterlogger:latest

Generate master key

perl -e 'print map(chr(int rand(256)), 1..16)'|xxd -g 16

and copy the generated key (ef500c9268cf749016d26d6cbfaaf7bf)

Set meter up in database

in mysql client run:

insert into `meters` (`serial`, `key`) values ('9999999', 'ef500c9268cf749016d26d6cbfaaf7bf');

Build and flash

Put jumper on pins marked 'PRG' and connect the serial programmer to the MeterLogger

Run the following to clean, build and flash:

KEY=<key> AP=1 make clean all flashall

where <key> is the key copied in previous step.

links: http://41j.com/blog/2015/01/esp8266-notes-summary/ gode posts om esp8266