Introduction We built 2 small cars which used Bluetooth Received Signal Strength Indicator (RSSI) measurements to navigate towards a stationary base station. The cars and base station used a Bluetooth Low Energy (BLE) 4.0 module to take the measurements and a PIC32MX250 microcontroller. The cars also used a 3 axis magnetometer as as compass in […]
Blue Hunters: Bluetooth RSSI Locator Robots Read More »
Electric power tools changed the way most of us work around the house. Simple and quick, as no extension cords are needed. But they do come with some effort. I still have some power tools that are powered by old Ni-Cad or Ni-Mh batteries. They work great, but if they are not used on a
Automated Power Tool Charger Read More »
Some time ago the tail light of my bike stopped working. When I opened it, there was a small PCB with some electronics and a LED in it. The problem was the push button switch that did not function. I could have replaced the switch but something about this design disturbed me. The point is
Intelligent Tail Light Read More »
(You can skip the paragraph)My sister has a Nikon D60 camera and is an active photographer. She had been begging for a remote control for the camera and this particular model doesn’t have the option of wired remote, which would have been easier to make myself. The original ML-L3 remote costs something around 40$ in
LEGO Nikon IR Remote Read More »
This project describes the second part of the following two projects: A wireless doorbell transmitter as described in the Wireless Doorbell Transmitter Instructable. This Instructable also gives some introduction to these projects. A wireless doorbell receiver described in this Instructable. The wireless doorbell receiver will make a sound and will blink a LED 5 times after it
Wireless Doorbell Receiver Read More »
To start with, I do not hate cats but I love birds. In my garden we have some open cages where birds can enter and leave as they please. They can find food and water there. Unfortunately sometimes a cat from the neighborhood enters my garden and I do not want it to catch any
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