- #RASPBERRY PI USING WRONG GUTENPRINT INSTALL#
- #RASPBERRY PI USING WRONG GUTENPRINT UPDATE#
- #RASPBERRY PI USING WRONG GUTENPRINT UPGRADE#
- #RASPBERRY PI USING WRONG GUTENPRINT CODE#
- #RASPBERRY PI USING WRONG GUTENPRINT DOWNLOAD#
Just follow the prompts and teir default setting, I've split this part out as I was getting error when I ran it all as one: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2 "No such file or directory").
#RASPBERRY PI USING WRONG GUTENPRINT INSTALL#
Then PHPmyAdmin: sudo apt-get install phpmyadmin Next up install LAMP: sudo apt-get install apache2 php7.0 mariadb-server-10.1
#RASPBERRY PI USING WRONG GUTENPRINT UPDATE#
No biggie really except all those handy internet how-tos are all out of date so I thought I'd bring you the way I takled it.įirst off, update everything, you'll need to be running this in bash or over SSH: sudo apt-get update -y & sudo apt-get dist-upgrade -y & sudo apt-get autoclean & sudo apt-get autoremove Still on Apache version 2 though so not everything has changed. MySQL is gone instead being replaced by MariaDB (think it is just a rebrand though. PHP5 has finally been updated and now is now officially available in the 7th flavour having missed out 6 completely - only 7.0 though, no 7.1. So the time has come to commission it and I find the lastest version of Raspian called stretch is out and theres been a few other updates. Note : You will need to replace my reference to 28-00000482b243 with the id of your device.I've been eagerly awaiting the fourth version of the RaspberryPi for a while, but when it passed the point where I had expected it to be released I googled it only to find that the next incarnation may be a while.ĭarn it, I have to get anothe RaspberryPi3. This ds18b20.py script can be downloaded directly to your Pi from BitBucket : wget In order to read the temperature via Python here is a basic script :į = open('/sys/bus/w1/devices/' + id + '/' + filename, 'r') Try touching the sensor with your finger and then using “cat w1_slave” to take another reading … In this example the temperature is 23.062 degrees Celsius (centigrade). The “w1_slave” file contains a bunch of data but the “t=23062” at the end is the temperature reading. The complete command line setup process looks like this : DS18B20 Command Line Setup Using “cd” we can change to the temperature sensor directory, list the contents and then view the “w1_slave” file :
#RASPBERRY PI USING WRONG GUTENPRINT CODE#
Your ID will be different so be sure to use that in the example code below. Get Sensor IDĮach sensor has a unique ID and in my case it is 28-00000482b243. This will list the directories associated with your 1-wire devices. Use the commands below to go to the directory that contains the detected 1-wire devices : The device is setup to report its temperature via GPIO4.įor the changes to take effect you will need to reboot using : sudo reboot Check for Connected Devices You can save the file using CTRL-X, Y then RETURN. In order to enable the 1-Wire interface you just need to make a small change to the config.txt file using : sudo nano /boot/config.txtĪdd the following line to the bottom : dtoverlay=w1-gpio,gpiopin=4 This needs to be enabled so either follow the instructions below or refer to the Enable 1-Wire Interface on the Raspberry Pi post.
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The DS18B20 sensor uses the 1-Wire protocol.
#RASPBERRY PI USING WRONG GUTENPRINT UPGRADE#
Sudo apt-get upgrade Enable 1-Wire Interface
#RASPBERRY PI USING WRONG GUTENPRINT DOWNLOAD#
I tend to use the latest Raspbian image from the download page and then update it from time to time using the following two commands : sudo apt-get update It’s always best to tackle new projects with an updated SD card. Once you have connected everything together you can power up your Raspberry Pi.
![raspberry pi using wrong gutenprint raspberry pi using wrong gutenprint](https://content.instructables.com/ORIG/F9H/925N/IOIQNTZE/F9H925NIOIQNTZE.jpg)
Sensor Pin 2 connected to P1-07 (GPIO4)Ī 4.7Kohm resistor was placed between Sensor pin 2 and 3.ĭouble check that you don’t confuse Pin 1 and Pin 3 on the device otherwise the power will be applied the wrong way round!.Sensor Pin 1 connected to P1-06 (Ground).I used a small piece of breadboard and some jumper cables to connect it to the GPIO header on my Raspberry Pi. In my testing I didn’t have one of these so I used 2 x 2.2Kohm resistors in series. The only external component required is a single 4.7Kohm resistor. Pin 2 is the data pin and Pin 3 is the power pin. It has three pins and comes in a TO-92 package which means it looks similar to other devices you may have used such as transistors. The diagram on the right shows the DS18B20 device. It is so simple to use and the perfect starting point for creating a Raspberry Pi based temperature data logger. Within a few minutes I was measuring the temperature with it. The device only cost a few pounds and it seemed too good to be true … This promised an accurate way of measuring temperature with a few wires and almost no external components. While searching for a simple way to measure temperature using my Raspberry Pi I came across the DS18B20 1-wire digital temperature sensor.