We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week two random commenters will […]
Author Archives: DP
Inductor saturation tester
In relation to the previously posted Power inductor checker, Lindsay refers us to Alan Yates’ article on inductor saturation tester: As a result of recent work on switchmode power converters I needed the ability to measure the saturation properties of inductors. This simple instrument was built to allow visualisation of the current ramp as an inductor charges from […]
chipKIt Motor shield, chipKIT WF 32, chipKIT DP 32, and chipKit Cmod winners
Today we announce the winners of the chipKIt Motor shield, chipKIT WF 32, chipKIT DP 32, and chipKit Cmod! There were lots of great ideas, thanks for your submissions. Congratulations to Wedecon Design , his idea for home automation system – Connected home networking scored him a chipKIT WF 32: A home automation system to control motor controlled windows opening based […]
Ultra Librarian and Eagle tutorial
Luca Dentella writes: Ultra Librarian is a tool by Accelerated Designs to manage libraries of eletronic components (CAD design, simulation, 3d-modelling…). Many IC manufacturers provide Ultra Librarian files (.bxl) for their products: this tutorial will show how to use those files in Eagle… Via the contact form.
Free PCB coupon via Facebook to 2 random commenters
Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. More PCBs via Twitter on Tuesday and the blog every Sunday. Don’t forget there’s free PCBs three times every week: Free PCB Sunday. The classic. Every week, get […]
GIVEAWAY: chipKIt Motor shield, chipKIT WF 32, chipKIT DP 32, and chipKit Cmod
Later today we will announce the winners of the chipKIT WF 32, chipKIt Motor shield, chipKIT DP 32, and chipKit Cmod! Leave a comment on the original contest post with an idea for a cool project. The chipKIt Motor shield is available for $29.99, chipKIT WF 32 for $69.00, chipKIT DP 32 for $23.99, and chipKit Cmod for $29.00 from Digilent.
First release of the Papilio schematic library – draw a custom processor
Drone informs us of Gadget Factory’s first release of the Papilio schematic library: Hello everyone, we have some exciting news today, the first release of the Papilio Schematic Library is ready to go! Ever find that you need just one more serial port, or SPI master, or PWM? Wouldn’t it be nice to add any […]
Design and construction of a 24 GHz low noise amplifier
Jeff of MightyOhm writes: Tony Long and I designed and built a 24 GHz low noise amplifier for our ECE192 undergraduate independent study project at UCSD. The amplifier was designed with an early version of Agilent ADS, PCBs were fabricated on Rogers 5880 (Duroid), and we hand built several prototypes on K-connector fixtures that Tony designed. Measured […]
Reminder: chipKIt Motor shield, chipKIT WF 32, chipKIT DP 32, and chipKit Cmod giveaway
Tomorrow we’ll give away a chipKIT WF 32, chipKIt Motor shield, chipKIT DP 32, and chipKit Cmod! Leave a comment on yesterday’s post with a project idea, and one of these boards could be yours on Friday. The chipKIt Motor shield is available for $29.99, chipKIT WF 32 for $69.00, chipKIT DP 32 for $23.99, and chipKit Cmod for $29.00 from Digilent.
PlingPlong – A portable synth
Another cool project by Mats the PlingPlong, a two octave touch keyboard with four channel polyphonic synth: This is a small (10x20cm 4×8″) portable battery-operated synth with a two octave touch keyboard and four voice polyphonic digital sound. I’m using two microcontrollers on the board – a Microchip PIC18F44K22 for the user interface and a Atmel ATMEGA328 […]
GIVEAWAY: chipKIt Motor shield, chipKIT WF 32, chipKIT DP 32, and chipKit Cmod
Microchip and Digilent handed over a chipKIT WF 32, chipKIt Motor shield, chipKIT DP 32, and chipKit Cmod to give away this week. Leave a comment on this post with a project idea, and one of these boards could be yours on Friday. The chipKIT WF32 is based on the popular Arduino™ open-source hardware prototyping platform and […]
Jack-O’-Launchpad
Tom shared his Jack-O’-Launchpad in the project log forum: Perhaps not the most imaginative used of a Tiva Launchpad, but the default application makes for a serviceable Jack-O’-Lantern. Powered by a USB adapter from CUI, a freebie via @digikey on twitter. Nice! Via the forum.
#FreePCB via Twitter to 2 random RTs
Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week: Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch […]
Weather station
Xose Perez of Tinkerman has written an article detailing the build of his weather station: Arduino FIO based weather station with a DHT22 temperature & humidity sensor and a BMP085 barometric preassure sensor. The whole sensor will be powered by a solar panel (doubling as irradiance sensor) and backed by a LiPo cell.
An AVR ATmega configurable production line counter
Here’s a production line counter project build on an ATmega 8 micro by Davide Gironi: It has 4 digit seven segment display. It can count from 1 to 9999 pieces. User can program it to emit an alarm when a number of items is reached. Check out the video after the break.
Inside an inexpensive Air Hogs RC helicopter
Inside an inexpensive Air Hogs RC helicopter: There are a ton of these tiny RC Helicopters around, lots of them use IR light to send signals from the remote to the RC Helicopter. Arduino versus Evil took one apart to see what makes it tick. The helicopter doesn’t have much payload capability but it seems […]
Magical music box using CMOS and 555s
Justin Giles-Clark shows off his magical music box using CMOS and 555s: Simple circuit using 555s for a 3minute monostable oscillator to time the clockwork spring. Another 555 provide a astable oscillator with about an 1 hertz period clocking a 4017 decimal ring counter for 6 counts. Created in 2002. Via contact form. Check out the […]
Free PCB Sunday: Pick your PCB
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week two random commenters will […]
Getting started with mbed LPC1114
Here’s a Getting started with mbed LPC1114. mbed porting for LPC1114 was being done by Yoshihiro Tsuboi, Matthew Else and, Toyomasa Watarai: The LPC1114FN28 is an ARM Cortex-M0 based, low-cost 32-bit MCU, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/16-bit architectures. The […]
WiiBP, a simple Bus Pirate software controller for Wii Nunchuk
@TwitK82 tweeted: ” I just released a new project on BP4. A software to control a Wii Nunchuk.” Today we are going to showing our first project with Bus Pirate. That’s WiiBP, a simple BP software controller for Wii Nunchuk. This is the first version, even now in development, but with two cute features: – check the […]