egreiner / read_ds18b20_sensors

Read DS18B20 temperature-sensors on 1-wire bus, automatic sensor detection and continuously refreshing temperature and status

read_DS18B20_sensors

Read DS18B20 temperature-sensors on a 1-wire bus

• automatic sensor detection
• continuously refreshing temperature and status
• indicating current read pointer, timestamp, duration device id, temperature and connection-status

Video

This script is running on a Raspberry Pi 3

Change sensor resolution (in linux shell not Python)

This is optional.
The lower the resolution the faster the scan...

More infos here...

Change resolution temporary

This is the simplest solution i have found, directly via linux shell.

cd /sys/bus/w1/devices/  
sudo su  
for dir in 28-*; do echo 10 > "$dir"/resolution; echo "$dir"; done  

or

sudo su  
for dir in /sys/bus/w1/devices/28-*; do echo 10 > "$dir"/resolution; echo "$dir"; done  

check settings

cat 28-*/resolution  

or

cat /sys/bus/w1/devices/28-*/resolution  

Change resolution persistent (save it in the sensor-eeprom)

cd /sys/bus/w1/devices/  
sudo su  
for dir in 28-*; do echo 10   > "$dir"/resolution; echo "$dir"; done  
for dir in 28-*; do echo save > "$dir"/eeprom_cmd; echo "$dir"; done