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Archive for the ‘Arduino’ Category

DIY PWM to PPM converter for 2.4GHz receiver using Arduino

Wednesday, September 2nd, 2015

A DIY PWM to PPM converter using an Arduino Pro Mini from Al Prettybong.  Oscar wrote a post on his blog detailing how Al made it: For radio receiver, there are a few output signal formats. The traditional and also most common type of RX signal is the PWM and...

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Posted in Arduino, DIY, how-to | No Comments »

Simple Infrared PWM on Arduino, Part 3 – Hex IR Signals

Wednesday, September 2nd, 2015

The crew from AnalysIR has written up an article on Simple Infrared PWM on Arduino. This third part of a series will show you how to send Infrared signal using the Hex representation: In Part 1 of this series, we demonstrated how to send signals using soft or Simple Infrared...

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Posted in Arduino, infrared | No Comments »

Mesa-Video: 800×600 digital video for Arduinos over 2-wire serial Mesa-Bus

Tuesday, September 1st, 2015

kevinhub88 writes: This post describes Mesa-Video, a low cost, low power, small size and fully Open Source Hardware and Software solution for providing 800×600 digital video for Arduino ( and other ) microcontrollers.  Mesa-Video makes it quick and easy to display text and 24bit color graphics from any MCU using...

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Posted in Arduino, open source | No Comments »

Olympus RS-24 foot pedal mod

Thursday, August 27th, 2015

Rupert Hirst writes: For a while now, I have been toying with the idea of modifying a transcriber foot pedal into a programmable HID device. This could be useful for those complicated keyboard macros , Push to Talk  or even for a more natural feel in racing type games, although...

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Posted in Arduino, hacks | No Comments »

Simple scalar network analyzer

Tuesday, August 25th, 2015

rheslip blogged about his simple scalar network analyzer project: The principle is to stimulate an electrical network with a sinewave and measure the magnitude of the response. If we sweep over a range of frequencies and measure the power transmitted through the network we can determine its frequency response.  Transfer...

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Posted in Arduino, hacks | 9 Comments »

A JTAG/XSVF library for Arduino

Wednesday, August 19th, 2015

Marcelo published a post on his blog about JTAG and the library he wrote. I have recently felt the need to incorporate a JTAG port in a project to program a hardware that contained a CPLD. The idea was to both program it and perform some integrity tests on the...

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Posted in Arduino, JTAG | 6 Comments »

Testing the Shinyei PPD42NS

Tuesday, August 18th, 2015

From the comments on our Arduino dust sensor post,  KH writes: The sensor can obviously measure dust concentrations, it also has to be placed and set up properly, and it gives useful readings. For hobby users like most of us, obviously calibration to specific or absolute standards will be almost...

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Posted in Arduino, sensors | 5 Comments »

Mearm forked

Monday, August 17th, 2015

Bajdi's self designed version of the mearm using 3 stepper motors: Since I was not very happy with the original design I decided to make my own version. Goal was to make it much simpler to print, less pieces that don’t need to be so accurate to fit together. I...

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Posted in 3D Model, Arduino, robotics | No Comments »

Arduino dust sensor

Thursday, August 13th, 2015

Shadowandy's Arduino-based Dust Sensor project: Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield. The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you can view the sampling results using...

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Posted in Arduino | 6 Comments »

Arduino-based “Analog” slow cooker controller

Wednesday, August 12th, 2015

Dan Ternes blogged about his Arduino-based controller for analog slow cookers: With the AC power control figured out, I considered the User Interface. I opted for something simple. The Adafruit RGB LCD Shield would work well as it had both a display and buttons built in. Sure, I could have...

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Posted in Arduino | No Comments »

Automatic feeder mod makes cat work for food

Monday, August 10th, 2015

Here's a cool automatic feeder for your cat that dispense food in exchange for a wiffle ball by Benjamin Millam.  He wrote a post on his blog detailing its assembly: I used an Adafruit RFID reader to detect RFID tags embedded in the wiffle balls: the balls are cut slightly,...

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Posted in Arduino, hacks, RFID | No Comments »

ESP8266 Arduino NetIO Server demo

Monday, August 10th, 2015

Peter Scargill writes: This week as regular readers know I was far away from our little home in Spain – in fact I was at MIT (Massachusetts Institute of Technology)  in Boston, helping promote ESP8266 technology (why? because I could). Along the way I met up with Ivan Grokhotkov who...

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Posted in Arduino, wireless | No Comments »

Irrighino, a complete watering system based on Arduino Yun

Thursday, August 6th, 2015

Here's Luca Dentella's new project Irrighino, a complete watering system based on Arduino Yun.  It features a user friendly AJAX interface and a fully-customizable open source firmware. The main features are: -a configurable number of solenoid valves -an AJAX web interface -a weekly schedule -manual activation / deactivation An Arduino...

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Posted in Arduino | No Comments »

NExuS project

Wednesday, July 29th, 2015

Adam over at Maniacal Labs has written up documentation on his NExuS weekend project: My main desires for this build was that the NES look completely stock and unchanged from the front and that original, unmodified, NES gamepads worked via the original gamepad ports. Fortunately, this turned out not to...

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Posted in Arduino | No Comments »

2.2 or 2.4 or 2.8 inch SPI TFT LCD ILI9341 to Arduino Uno

Tuesday, July 28th, 2015

Bob Davis  has written an article on interfacing a 2.8 inch SPI TFT LCD ILI9341 with the Arduino Uno: Over the weekend I figured out how to interface a 2.8 inch SPI TFT that has a ILI9341 chip to an Arduino Uno.  All it takes is eight 1K resistors.  Most...

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Posted in Arduino, Interface | No Comments »

6 Volt 5 Watt solar charge controller

Friday, May 29th, 2015

Steve made this 6 volt 5 watt solar charge controller project, that is available at Github: Here is a 6 volt 5 watt solar charge controller project using a dedicated printed circuit board from dirtypcbs.com and an Arduino pro-mini. The board uses sot-23 low RDSon P channel mosfets (Si2369). It has voltage...

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Posted in Arduino, DirtyPCBs.com | No Comments »

Arduino time lapse – camera pan device

Monday, May 25th, 2015

An Arduino camera pan device project from Bajdi Electronics: I own one of these small action cameras (SJcam SJ4000). I bought it because it’s small, and easy to take with you wherever you go. To make nice stable videos I mount it on a mini tripod. This got me thinking that it...

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Posted in Arduino, DirtyPCBs.com, gadget | No Comments »

Uber home automation

Thursday, May 21st, 2015

Eric of ElectronicHamsters wrote an article detailing his Uber home automation project:  garage door sensor, battery powered mailbox sensor or door monitor, multi sensor, laundry room washer-dryer notifier, prototype of dog tracker, garage genie and remote control, smart mouse trap. Project info at ElectronicHamsters project page. Check out the project instructables here.

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Posted in Arduino, sensors, wireless | 1 Comment »

Nokia phone Arduino shield

Wednesday, May 20th, 2015

Charles Pax is making an Arduino shield for the old Nokia phone: The cheapest and most common old phone we’ve seen is the Nokia 3100. There’s no camera, no Bluetooth, no WiFi, no frills at all. Perfect! We can pick it up in the market for just a few dollars. This...

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Posted in Arduino | No Comments »

ESP8266 WiFi touch screen thermostat

Friday, May 15th, 2015

An instructables on how to build WiFi touch screen thermostat by EasyIoT: In this tutorial we will show how to build WiFi controlled thermostat with ESP8266, Arduino and touch screen display. Thermostat will also show other info, like weather forecast and temperature outside. Total cost for thermostat is about 40EUR, which is...

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Posted in Arduino, wireless | 2 Comments »

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Recent Comments

  • Bob: Jambalaya rocks.
  • KH: I should point out something... well, lead acid car batteries are designed to be well-charged all the time. The plates (which are patterned and thin)...
  • David Haile: You are a smart person and absolutely correct. That kind of current needs a lead acid car battery behind it. Still, it does have its...
  • KH: The solution discussed in the linked article is wrong. It's a largish Lipo (2500mAh) and he thinks 77uA is acceptable... ha ha ha ha ha....
  • Dave: I never had to opportunity to learn or use this stuff when I was in college (I'm sooo old that op-amps were just being developed...