LoRa Trough 8 Floors – Using 100 mA

My student Tatu Erkinjuntti sent LoRa radio transmissions. His device can send messages trough eight concrete floors with minimal power consumption. He is using ESP32 with an external LoRa module, programmed with Arduino IDE. Power consumption during transmission is just … Continue reading

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ESP32 – Arduino Compatible 6 EUR DevBoard with WiFi and Sensors

My colleague Heikki Hietala experimented with ESP32. He could connect it to Eduroam, the world wide free WiFi network for students. Heikki used it for building a network controlled version of his morse moai, but you could use ESP32 to … Continue reading

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Raspberry Mirror Shows Weather and News

Walk in front of a mirror, and it shows you the weather. Kuvastin is a Raspberry Pi based magic mirror with news feeds and weather. Half year course Monialaprojekti has just started, so I’m pretty happy to see students already … Continue reading

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Prototyypin rakentaminen bus4tn007-8 w22

Opi rakentamaan itse keksimiäsi prototyyppejä: robotteja, varashälyttimiä, kauko-ohjaimia… Update: check projects and feedback.

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Internet of Things in Lapland – Demo Day

In just four days, students have designed and built their own Internet of Things devices. I’m teaching a workshop with Kimmo Karvinen. We’re with Art & Design students in University of Lapland, Rovaniemi.

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Machine Vision, Robots & Fish Food

My embedded course was just finished. Student projects included (some reports are in Finnish) Nosy Neighbor (Hanna Hoffren) Human Fall Detection with Machine Vision (Kim Salmi) Automatic Plant Watering (Ilari Porma & Henrik Huhtaluoma) Rage-O-Meter (Antti Stenman) BatVision (Tatu Polvinen … Continue reading

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Run Arduino IDE on Xubuntu Live USB

You can develop your own robots and other hardware with Arduino. You can do this even when booting the computer from a USB stick. With Xubuntu Live USB, you must use ‘newgrp dialout’ after adding yourself to the dialout group. … Continue reading

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Free SSL Certs, 50 Salt Slaves, 5 USD Raspberry Pi, Free Home Automation

Get free SSL cert for your business. Deploy and configure 50 servers to DigitalOcean. Buy RaspBerry Pi Zero for 5 USD (*actual price may vary). Automate your home. Read Ashkan’s thesis while he writes it.

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Make Sensors Video

Watch Make Sensors Video – robot hand, ancient chest from future and much more. Read “Make Sensors” the book – it’s in pre-sales on Amazon.com. It’s already number 5 4 3 in Sensors category. I wrote the book with Ville and … Continue reading

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Two Books for Robot & Sensor Hackers

I’m finishing two new books for robot & sensor hackers. Would you like to get started with electronics and sensors? Are you ready to meet simple Arduino and Linux-based Raspberry Pi?  Read Getting Started with Sensors. Written with Kimmo Karvinen. … Continue reading

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