Posts Tagged ‘ATMega328p’

5 LDO regulator considerations other than voltage and current

Monday, June 4th, 2018

James Lewis over at Bald Engineer writes, "For an AddOhms series, I created a DIY Arduino I am calling the “Pyramiduino.” It is an ATmega328p based board in the shape of a triangle. Other than being cute, the shape does not offer any other benefit. The design features a 3.3...

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Posted in Arduino, tutorials | 2 Comments »

NickelBot – Laser controller

Monday, April 23rd, 2018

bdring made this laser controller for his wooden nickel engraver project and wrote a post on his blog detailing its assembly: Here are some details on the custom laser controller I made for the NickelBot, wooden nickel engraving machine. I want to use Grbl to control the machine. Grbl has...

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Posted in DIY | No Comments »

The AAduino

Thursday, May 12th, 2016

Johan Kanflo has a new project posted the AAduino, that is available on Github: The AAduino is an wireless Arduino clone the size of an AA battery with Keystone battery terminals rotated 180° to act as positive and negative terminals. It is powered by an ATMega328p and is fitted with...

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Posted in Arduino, wireless | No Comments »

mavroOBD, an open source Arduino compatible OBD/Can-Bus module

Thursday, February 11th, 2016

Mavromatics' open source project designed to “hack” your vehicle, that is available on github: The goal of this project it to create an Arduino based OBD port module that can be used to enhance a vehicles capabilites. For example, if you want door locks to close when moving faster than...

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Posted in Arduino, DIY, hacks | 1 Comment »

A DIY A4 laser engraver made from a scanner and a printer on ATmega328

Wednesday, December 2nd, 2015

In this video Davide Gironi demonstrates his DIY A4 laser engraver made from a scanner and a printer on ATmega328: This "Get Ready For Win98" Laser Engraving Machine it's built using an old scanner, and an old printer. A laser engraving machine is a tool that uses lasers to engrave an...

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Posted in DIY | 1 Comment »

DIY capacitance meter

Monday, October 26th, 2015

Electro-Labs created new open source hardware project,  a DIY capacitance meter: This is a capacitance meter which can measure capacitors rated from picofarads to millifarads. The principle of operation is simple. Just apply voltage to the capacitor and measure the elapsed time to charge it. The circuit is based on...

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Posted in DIY, measurement | 8 Comments »

DIY double sided 60W LED UV radiation unit with vacuum pump

Friday, June 26th, 2015

Kurt Skauen has been working on a DIY 1188 LED dual sided UV radiation unit: The UV exposure unit is controlled by an ATmega328P microcontroller and have the following features: Single and double sided exposure. Each side radiated by a 594LEDs / 30W UV LED panel (The unit has a...

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Posted in DIY, LEDs | 10 Comments »

Building a Doduino

Monday, September 8th, 2014

V-TechDesign published a Doduino build: This project was an exercise in building an Arduino like ATMEGA328P board from scratch using a 3x4 inch Veroboard. The main objective was to provide better build-in I/O capability out of the box, so most projects will not need an I/O shield to perform common tasks....

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Posted in Arduino | No Comments »

A DIY laser engraver build using DVD and CD-ROM/writer

Tuesday, July 15th, 2014

Here's a DIY 38mm x 38mm laser engraver build using CD-ROM/writer on ATmega328p by Davide Gironi: A laser engraving machine, is a tool that uses lasers to engrave an object. To build this tool I've used two old CD-ROM writer that lays around in my garage. The X/Y positioning system it is...

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Posted in DIY, tools | 11 Comments »

Nixie tube clock

Thursday, July 10th, 2014

Tom Cousins of DOAYEE made this DIY nixie tube clock: Below is the schematic for the project, as you can see I’m using 6 IN12 nixie tubes, each with it’s own 74141 nixie tube driver. These drivers are great! They simply connect directly to the nixies and display whatever 4 bit...

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Posted in clock, DIY | No Comments »

Modify an off-the-shelf CP2102 module as an Arduino programmer

Tuesday, May 6th, 2014

Kerry D. Wong wrote an article on how to modify a CP2102 module as an Arduino programmer: To make it work with the Arduino bootloader, one easy approach is to disconnect the RST header pin from CP2102 pin 9 and connect it to the DTR pin (pin 28) instead. While...

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Posted in Arduino, how-to | 7 Comments »

Simple 6x USB charger with current monitor

Friday, March 14th, 2014

Frank Zhao shared his simple 6x USB charger with current monitor in the project log forum: This is a simple 6 port USB device charger with a individual current monitor on each port. The charging current is indicated using RGB LEDs. Blue means slow charge (under 250mA), green means 250mA to 750mA, red...

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Posted in project logs | No Comments »

UDP bootloader for Atmega328p + ENC28J60

Tuesday, November 26th, 2013

Kehribar writes, "I’ve recently published my “UDP bootloader for Atmega328p + ENC28J60” project.  Hardware development is done on my "Embedded ethernet gateway" project.  You can find the blog post about this project from here" Via the forum.

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Posted in dev boards | 2 Comments »

Building a constant current/constant power electronic load

Friday, October 25th, 2013

Kerry Wong built a DIY constant current/constant power electronic load.  It can sink more than 200W of power: A while back I built a simple constant current electronic load using an aluminum HDD cooler case as the heatsink. While it was sufficient for a few amps’ load under low voltages, it could not handle...

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Posted in Arduino, DIY | 2 Comments »

An isolated DAC using PWM output

Wednesday, October 2nd, 2013

Kerry Wong writes: Arduino‘s (ATmega328P) PWM outputs via analogWrite can be conveniently turned into analog voltage levels through the use of simple RC filters. Since the PWM outputs are not isolated, using them to drive other devices directly could be potentially dangerous. This is especially true if the target circuit...

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Posted in Arduino | 2 Comments »

DIY digital wristwatch

Friday, September 27th, 2013

Zak Kemble wrote a post on his blog detailing his digital wristwatch with a 1.3" 128x64 OLED display, AVR ATmega328P microcontroller: The main incentive behind this project was to see how much I could cram, in terms of both hardware and software, into a wristwatch-like device that is no larger than...

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Posted in AVR, DIY | No Comments »

Atmega328p PPM Encoder programming with the Bus Pirate

Friday, August 2nd, 2013

The Ardupilot guys have posted this brief tutorial on how to program the ATMega328p  using the Bus Pirate and AVRDUDE software: Connect the Bus Pirate and check that everything is working. You will need to use the same technique to locate the serial port name for the Bus Pirate that...

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Posted in Bus Pirate | 2 Comments »

DIY VFD clock

Wednesday, July 3rd, 2013

Kerry Wong shows off his VFD clock he built after he completed the filament driver and the circuit to drive the multiplexed VFD segments we cover previously: After I completed the filament driver and the circuit to drive the multiplexed VFD segments, it is time to finish the VFD clock...

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Posted in clock, DIY | No Comments »

Building a sweep generator for BK 4011

Friday, April 19th, 2013

Kerry Wong documented his sweep generator build: In this post I will show you a simple sweep generator I built. It can be used to generate both the sweep waveform and synchronization signal needed for any function generator that has a VCG/VCO input. The sweep frequency can be adjusted from...

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Posted in Arduino, AVR | No Comments »

DIY ethernet temperature and humidity logger

Monday, April 1st, 2013

Kerry Wong built an Ethernet temperature and humidity logger: I used an ENC28J60 Ethernet module along with an ATmega328p microcontroller to log the temperature and humidity readings and then process the data on my web server for display. To plot the data points, I used Google Annotated Timeline so that you...

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Posted in Arduino, hacks | 2 Comments »

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Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
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