After a bad water damage (our cellar basically filled up whilst we were away for several days), I decided to monitor our water usage for anomalies. Enters Arduino… The idea of this project is to use an arduino to count every drop of water that goes through the water company meter. Said arduino needs to
Aquameterduino: Water meter plus Arduino Continue Reading
At this year’s “Arduinos in the Physics Lab” workshop at the AAPT meeting, one of the participants asked for a simple way of using the Arduino as a tethered A/D converter for data collection direct to a computer. This is my quick & dirty demonstration solution. Here’s the code for the Arduino. It waits for
Simple Arduino data-collection Continue Reading
Energino is a plug-load meter that measures the amount of power consumed by whatever DC electrical appliance is plugged into its. It was originally designed to monitor the energy consumption of simple networking devices such as Ethernet switches and WiFi access points, but it can be used to monitor any DC appliance. Energino “sits” between
Energino: an Arduino-based energy consumption monitoring shield Continue Reading
So I had some luck with getting the Sharp Infrared range finder working and I’ve now plugged this on to my servo rig to see if I get better results on my radar styled display. Check out how to use the Sharp IR range finder here Few things to bare in mind, whilst the code
A guide to using the SRF05 Distance Sensor with Arduino in order to calculate distances from objects. In this case I’m also altering the output of an LED with PWM according to how close an object is to the sensor. So the nearer you are the brighter the LED. So if we start with the
Arduino – Sonic range finder with SRF05 Continue Reading
This intervalometer used infrared LED To built intervalometer you need: Arduino Nano (or Arduino-compability). I used Nano V3 Serial LCD Joystick Module IR Led and resistor ~200 Ohm Switch Push Button Plastic enclosure Battery 9V Schematic is very simple Step 2: Connection Serial LCD has 4 output: GND, VCC, SDA, SCL. SDA (data) connect to
Intervalometer for Sony NEX 5n Continue Reading
A simple diagram demonstrating how to regulate the velocity of a DC motor using a potentiometer connected to your Arduino device. Additionally demonstrates the method of utilizing a TIP120 transistor for enabling the Arduino to manage a more powerful power source. Transistors consist of 3 pins, with the third pin (Base) enabling control of the
Arduino – Control a DC motor with TIP120, potentiometer and multiple power supplies Continue Reading
After posting up the v1 of my project many people requested an more detailed instructable. So i decided to start with a new one with a little upgrades to my previous instructable. What does this thing do? Well its quite simple it is just an replacement for an distance tape. It can also measure temperature,
Smart Distance Measuring Tape v2 Continue Reading
How a divider-based Arduino ohmmeter turns resistance into a voltage, why auto-ranging helps, and where ADC resolution, tolerance and calibration limit accuracy.
Arduino Auto-Ranging Ohmmeter: Divider Measurement and Accuracy Limits Continue Reading
This is an explanation and set of building plans for a USB-powered sourcemeter with a personal computer interface. The sourcemeter uses an open-source Arduino microprocessor and the user interface uses the open-source Processing environment. The sourcemeter was designed as a homemade current-voltage (IV) tester to measure the IV characteristics of a solar cell by sweeping applied voltage across
Build Your Own Sourcemeter Using Arduino Continue Reading
