Category Archives: Raspberry Pi

Raspberry Pi

PLNOG: The 18th, 19th and 22nd Polish editions – with presentations, both SildeShare and YouTube (Polish language only)

IoT, Orange Pi, Raspberry Pi, SMOG Sunday September 24th, 2017 Łukasz Jokiel 2 Comments

PLNOG is a conference held in Warsaw and Krakow twice a year. This is the place where IT and telco people meet. Last time I spoke about some of my experiences in building small devices, listen if want to (Polish only): During next PLNOG 19 I’m going to talk about SMOG sensor: Big Thank You to all who were present – hope you liked it! Presentation: SMOG w Grafanie (PLONOG 19 w Krakowie) from Lukasz C. Jokiel PLNOG 22, thanks for attendence and comments! PLNOG22…

Power supply for Raspberry Pi, Orange Pi, ESP8266 – XBOX 360 PSU modification

ESP8266, IoT, Raspberry Pi Saturday May 6th, 2017 Łukasz Jokiel 3 Comments

Proper supply of power is a very important part of our SBC (Small Board Computers) projects. Power supplies with too low current efficiency, instability and lack of filtration – often lead to accidental resets, lack of sensor readings or simply unstable behavior of SBCs. One of the solution is to modify the power supply from Microsoft console – XBOX 360. WARNING: We will work with high currents and high voltage, which requires basic knowledge of electrical engineering. The author is not responsible for accidents and…

FLARM w szybowcu (zdjęcie: Sebastian Lampart)

Tracking gliders, airplanes, helicopters and baloons, part 3 – FLARM

Linux, Raspberry Pi, SDR Monday April 10th, 2017 Łukasz Jokiel 11 Comments

We already know how to track airplanes using DVB-T USB dongle and Orange Pi or Raspberry Pi. Let’s move on to a new system that allows tracking of light aircrafts: gliders helicopters baloons smaller airplanes FLARM – is a collision avoidance system for light aircrafts, popularized and approved by EASA, gaining traction, used mainly on gliders in Poland and Europe. We’re not going to use it to avoid collision – but to receive position and track light aircrafts – so we can share them on the…

Raspberry Pi B+ with Neoway GSM M590 module

Raspberry Pi and GSM network- sending SMS, connecting to the Internet (IoT)

IoT, Linux, Raspberry Pi Sunday October 9th, 2016 Łukasz Jokiel 30 Comments

This time I’m going to connect to our Raspberry Pi a GSM module. Why? Internet of Things, in short IoT, as it was noted at Krakow’s PLNOG17 by Marcin Aronowski involves and depends on the network which should be easily accessible, and the very essence of IoT is the energy efficiency. Perhaps, he said, 3G will go away but 2G but will still remain. And we do not huge pipes – just enough bandwidth. 2G connection is still the cheapest in the implementation (also due…

Domoticz part 6: Water/Rain/Snow/ sensor FC-37 using ESPEasy (digital)

Domoticz, IoT, Raspberry Pi Wednesday June 8th, 2016 Łukasz Jokiel 13 Comments

We return today to the simple and quick solutions! The weather station or irrigation/sprinkler system – can’t operate without proper detection of rain, water or even snow. Let’s use the FC-37 sensor (also know as YL-38 or MH-RD, or just similar to the picture) What will you need? rain sensor type FC-37/MH-RD (rain drop/snow sensor) – must come with D0 pin, price around $0.50 to $1.50 ESPEasy working on ESP8266 from the previous entries Installation and configuration The sensor must be connected to the power supply + 3.3V (3V)…

BME280 in Domoticz – updating the sensor data via Python

Raspberry Pi Saturday March 26th, 2016 Łukasz Jokiel 3 Comments

[Update: 30.07.2017 – as of now – latest stable domoticz version supports BME280, so this is now obsolete! The Hardware menu has now I2C Sensors and BME280 is present in submenu] This is a modification of: https://bitbucket.org/MattHawkinsUK/rpispy-misc/raw/master/python/bme280.py, which after you change the IP address and port of Domoticz in ip_domoticz, and creating dummy sensor in Domoticz – “Temp+Humi+Baro” – and then changing the IDX to it’s value in: idx_dummy_bme280 – will update the sensor with the same data as you can see while running the program. This…

Domoticz part 4: connecting the DS18b20 thermometer

Raspberry Pi Tuesday March 1st, 2016 Łukasz Jokiel 32 Comments

Temperature readout is one of the first sensor we add to domoticz. It’s a very simple task and allows to connect multiple thermometers via the 1-wire bus. 1-wire means that thermometer has a single data wire, on top of VCC and GND. This wire is used to send back data to 1-wire controller and then it gets verified. What will you need? Hardware: thermometer DS18B20 (Dallas) – comes in variety of housings – usually it’s a chip with 3 pins. It’s good to measure from…

ESP8266 on NodeMCU Amica Board with DHT22 sensor and battery power

Domoticz part 3: ESP Easy – quick and easy sensor for weather station using ESP8266

Raspberry Pi Tuesday February 9th, 2016 Łukasz Jokiel 85 Comments

ESP8266 has become so popular that a beginner can choose from multitude of projects/firmwares and then – just start using them. Advanced IoT adopters will praise it’s quick implementation and stability. Today we will check out the Richard Ten Klooster’s project ESPEasy – https://github.com/ESP8266nu/ESPEasy. Basically ESPEasy is a firmware that can be flashed onto ESP8266 – preferably ESP-12E or ESP-12F and right after boot – we can join it’s WiFi access point (AP) to configure it via web interface. No console needed. Then, it is…

Domoticz part 2: WiFi remote thermometer for weather station, dual digit precision – it’s ESP8266 for beginners

ESP8266, IoT, Linux, Raspberry Pi Thursday October 15th, 2015 Łukasz Jokiel 46 Comments

Last time we installed Domoticz, and soon we will move to Z-Wave, but first – let’s take a look at fantastic little gadget: ESP8266 What is an ESP8266? ESP8266 (also called ESP here) is a SoC – System on a Chip, which in our case is – CPU/RAM/FLASH with GPIO and WiFi interface – so another mini komputer with wireless interface. You can think of it as scaled down version of Raspberry Pi, less power hungry, but with own WLAN and a lot (minimum 2)…

OpenVPN Raspberry Pi – split-tunnel with Internet access

Linux, Raspberry Pi Friday September 11th, 2015 Łukasz Jokiel 18 Comments

Would you like to connect from any place, usually using open WiFi network in town, at friends or airport – with your’re own home network? Virtual Private Network (VPN) is here to allow you to log-in securely to your home network, with additional perk of using it to get secure Internet access. What will you need? Hardware: Rapberry Pi (A, A+ or B, B+, 2, Zero) Home Router with Port Forwarding or Virtual Server support – any will do Software: Raspbian – standard Linux distribution for…

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Embedded devices: Linux on Raspberry Pi, ESP 8266 and others