rfb

#
# roland_plotter_flowcontrol.py
#
# chunks hpgl commands into 256 bytes. feeds plotters new chunks
# when there is available space.
#
# expects plotter at /dev/ttyUSB0 9600 8N1
# 
# tested with a roland dxy-885
#

rfb

> rrdcreate temp.rrd DS:temp:GAUGE:30:-100:100 RRA:AVERAGE:0.5:1:1000
> rtl_433 -F "mqtt://localhost" 
> mosquitto_sub -h localhost -t 'rtl_433/barley/events' | jq --unbuffered 'select(.id == 56 and .model == "Acurite-606TX") | .temperature_C' | xargs -I{} rrdtool update temp.rrd N:{}
> rrdtool graph temp.png DEF:temp=temp.rrd:temp:AVERAGE:step=1200 LINE1:temp#FF00FF:"Temp"

rfb

#!/usr/bin/env python3    
                        
import sys              
                        
ZERO_COUNT = 4          
ONE_COUNT = 8           
                        
def ppm_scan(s):        
    count = 0           
    for bit in s: