Wednesday, October 18th, 2017
Alexander Lang writes: The gentlemen for whom I'm developing this hardware for has requested some additional functionality. The additional functionality requested is a Pulse Oximetry measurement. Pulse Oximetry is the measurement of a person's pulse along with how much oxygen is present within their blood. It is a common measurement...Tags: medical, Pulse Oximeter
Posted in Arduino, tutorials | No Comments »
Tuesday, August 22nd, 2017
Paul Gardner-Stephen writes: Early in the year, one of my colleagues, Damian, showed me one of these strain-gauge solid-state joysticks that they were using as part of the undergraduate engineering curriculum. Their goal was to teach the students how to read strain-gauges. But I immediately saw the applicability for making...Tags: Arduino, joystick
Posted in Arduino, gadget | No Comments »
Tuesday, July 4th, 2017
Kerry Wong published a new build: A flat bed scanner typically uses three rows of CCD sensors (RGB) to capture images placed directly on top of the glass bed. When the CCD array scans from one end of the image to the other, the digitized color image is formed. So...Tags: Arduino Due, scanner, X-Y plotter
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Tuesday, June 20th, 2017
An update on Edward Mallon’s Arduino data logger project we covered previously: If you need a logger with a cheap durable housing, it’s still hard to beat the Dupont-jumper build released in 2016. But sometimes I need more of a bare-bones unit for bookshelf test runs while I shake down...Tags: data logger
Posted in Arduino, DIY | No Comments »
Tuesday, June 6th, 2017
Edward Mallon writes: I saved SD power control to the end of my quest for low power logging, because of all the potential weirdness that could arise with the Arduino libraries. But after a reasonably thorough round of testing it all seems to be working OK with a BJT switching...Tags: datalogger, sd card
Posted in Arduino | 7 Comments »
Wednesday, May 17th, 2017
Steve Smith has published a new build: It’s taken some research but I have built a prototype with my trusty ARDX Arduino Uno kit Currently, the device changes mode with a press of the mode button which will later be incorporated in a suitable rotary encoder. I modified the prototype’s...Tags: Atmega328, cable release
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Tuesday, May 9th, 2017
https://youtu.be/V-PAW3KoB_A Yu Jiang Tham designed and built his own bartender robot named Bar Mixvah, that is available on Github: I built a robot that mixes drinks named Bar Mixvah. It utilizes an Arduino microcontroller switching a series of pumps via transistors on the physical layer, and the MEAN stack (MongoDB, Express.js,...Tags: 3D, how-to, Raspberry Pi, Raspian
Posted in 3D Model, Arduino, DIY, tutorials | No Comments »
Monday, May 8th, 2017
BVarv wrote an instructable detailing the build of his pool playing robot project with Arduino: I redesign the prototype with servos, belts and gears at the points of rotation to add programmable motion. While doing so, I stumble across an easy win. It turns out that the "parked under the table"...Tags: Arduino, how-to, robot
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Tuesday, May 2nd, 2017
Edward Mallon writes, "I’ve managed to get cheap thermistors calibrated to about to +/- 0.2C with 3.3v Arduinos. Instead of playing whack-a-mole with the various sources of error, I simply rolled them into some synthetic Steinheart-Hart constants, and I was able to get the therm’s output onto the reference line...Tags: Arduino, thermistor
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Friday, April 21st, 2017
Researchers at the UC Irvine and the FX Palo Alto Laboratory present Lift, a visible light-enabled finger tracking: By projecting encoded visible patterns onto an object’s surface (e.g. paper, display, or table), and localizing the user’s fingers with light sensors, Lift offers users a richer interactive space than the device’s...Tags: Arduino, light sensors
Posted in Arduino, sensors | No Comments »
Thursday, April 20th, 2017
Dimitar writes: If you are reading this I suppose you are already familiar with GMLAN. In short, GMLAN is a communication protocol based on CAN-BUS to send data between different Electronic Control Units (ECUs) in the car like BCM (Body Control Module), IPC (Instrument Panel Cluster), EHU (Entertainment Head Unit)...Tags: Arduino, canbus, gmlan, mcp2551
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Tuesday, April 18th, 2017
Rui Santos from Random Nerd Tutorials has posted a detailed tutorial on how to create a standalone web server with an ESP32 that can toggle two LEDs using the Arduino IDE. Full details at Random Nerd Tutorials homepage. Check out the video after the break. (more…)Tags: Arduino IDE, ESP32, how-to
Posted in Arduino, tutorials, wireless | 1 Comment »
Tuesday, April 18th, 2017
Michael wrote an article on controlling a bunch of lamps individually with WS2811 drivers and Arduino: I simply used the same technology as LED strips to allow communication between lamp modules. LED strips have RGB LEDs with an embedded driver chip which uses PWM (pulse width modulation) to control the...Tags: Arduino, WS2811
Posted in Arduino, LEDs | No Comments »
Tuesday, April 18th, 2017
Boris Landoni writes about an open source sprinkler system powered by Yún: A control unit for the garden sprinkler that can be controlled via web and smartphone thanks to Arduino Yún. With summer approaching, our plants and our gardens need some regular watering in order to stay lush and green...Tags: Arduino Yun, open source
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Friday, April 14th, 2017
Jakub designed and built a programmable electronic load for Arduino, the MightyWatt R3: MightyWatt R3 is a programmable electronic load. That means you can use it for testing batteries, power supplies, fuel cells, solar cells and other sources of electrical power. You can also make a programmable power supply from a...Tags: electronic load
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Thursday, April 6th, 2017
Dave Curran blogged about his Arduino based programmer for the DivMMC future: With the labels on, it may make more sense. This is a programmer and tester. And that is what it programs and tests, the new DivMMC Future from The Future Was 8 Bit. With lots of orders...Tags: DivMMC
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Thursday, March 2nd, 2017
An Arduino Knight Rider Rainbow dice built using a clock by Davide Gironi: This project implements a Knight Rider / Rainbow effect Random Selector. It uses an Arduino UNO and a WS2812B RGB led strip. A friend of mine needs a random selector for train scale model. I've developed this...Tags: Arduino Uno, RGB LED, WS2812B
Posted in Arduino, LEDs | No Comments »
Wednesday, March 1st, 2017
Simple 3 Phase Arduino energy meter from The DIY Life: Again, with this meter I was going for simplicity. Sure, for perfectly accurate measurements you need to measure both the supply current and voltage but for this application and in the interests of keeping the energy meter simple and safe...Tags: DIY, energy meter
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Tuesday, February 28th, 2017
From the comments on our previous post Improving ADC resolution by oversampling and averaging application note, Edward Mallon writes: I managed to get oversampling working well on cheap Arduino promini clones. Turns out all you have to do is toggle a digital pin connected to ground with the right size...Tags: adc resolution, oversampling
Posted in Arduino, techniques | No Comments »
Tuesday, February 28th, 2017
An Arduino Nano-based open source data logger by Liudr. I have been designing data logger for a number of years. This is my answer to lots of data logging needs. An Arduino Nano-based open source data logger More details at Liudr's blog.Tags: data logger
Posted in Arduino, open source | No Comments »
