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Harri Ohra-aho
92 followers -
Spiral out. Keep going.
Spiral out. Keep going.

92 followers
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Harri's posts

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Oh this? Just taking a ride in my mobile phone.

https://hackaday.io/project/8409-kaukomieli-a-telepresence-bot
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Shuffling through the sensor data displayed on the Numitron clock. There was a convenient hole for the crank handle on the field telephone's casing, so didn't need to drill the immaculate bakelite when installing the rotary encoder.
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Numitron tubes, an Arduino and an ESP8266 find a new home inside an old field telephone to form a kind of smart clock.
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Numitron tubes, an Arduino and an ESP8266 find a new home inside an old field telephone to form a kind of smart clock.
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Numitrons can be a bit of a pain to wire up. Soldered some adapters with screw connectors to ease the pain. 
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Luddite cats disrupting ESP8266 PWM tests. Thou shalt not suffer the fly emulating network brain to live! 

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Finally got around to trying out a standalone ESP8266 setup on the home sensors. The overkill Arduino + unreliable Bluetooth combo needs to make way for the compact ESP. 
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Finally got around to trying out a standalone ESP8266 setup on the home sensors. The overkill Arduino + unreliable Bluetooth combo needs to make way for the compact ESP. 
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I needed to verify the dimensions and orientation of an underground oil tank and only had access to it through the filling tube. Attached an Arduino and an ultrasonic sensor to a stick and lowered that into the tank. The readings were all over the place, probably due to the ultrasound bouncing on the tank walls.

Fortunately I also have a LIDAR-Lite module, so I replaced the Ping sensor with it and had very solid results.
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2015-05-30
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