Author Archives: DP

MSP430G2553 sensorless BLDC motor control development

Tribes over at the 430h forum has been working on a sensorless BLDC motor controller using a MSP430G2553: My current project is to build a controller for a sensorless BLDC motor using a MSP430G2553. I want to realize trapezoidal control with Back-EMF/zero-crossing detection. I plan to detect zero-crossing with the Comparator(CA2/3/4 vs. CA1) and generate […]

Raspberry Pi level shifters and monitoring

Stuff4Pi posted his ConvertPi, a Raspberry Pi GPIO full level converter & monitoring, in the project log forum: I would like to introduce my first Raspberry board: a GPIO bi-directional level translator (3.3V <-> 5V): – This is an in-between expansion board that you plug in the RPi P1 connector which gives a bi-directional level […]

BLiVIT project update

Asgard posted an update on his power charger and supply regulator project  we covered previously, the BLiVIT: Testing continues. I have validated the power flow switches and the battery charger/management.The measured idle current draw from the Li+ cell is 23.4uA. With the Powah-1 module and the 10Meg load resistance inherent in my scope the current […]

UV resin based mUVe 1 3D Printer source files released

UV resin based mUVe 3D Printer releases source files: The mUVe 1 3D Printer, an open UV resin based 3D printer was successfully funded on indiegogo back in April. As estimated, the first Ultimate kit was shipped out on Jun.20. Last weekend the team has completed building and shipping all of the Ultimate kits. Meanwhile […]

Andruino: A simple 2-way bluetooth-based Android controller for Arduino

TechBitar wrote this Instructable detailing his ANDRUINO,  the 2-way Android controller for Arduino via bluetooth: ANDRUINO is a simple tool to help you control your Arduino (or clone) from your Android phone. It’s both an Android app and an Arduino program. Andruino has a simple Android user interface to 1) control Arduino’s digital and PWM […]

Tutorial – Arduino and the TI ADS1110 16-bit ADC

John Boxall over at Tronixstuff has a series of Arduino tutorials.  This chapter fifty-three of a series will show you how to use the TI ADS1110 16-bit ADC with Arduino: Moving on from the last chapter where we explained an 8-bit ADC, in this instalment we have the Texas Instruments ADS1110 – an incredibly tiny […]

USB custom hardware interface for Unity3D

Here’s a video by Dilshan Jayakody demonstrating the USB custom hardware interface for Unity3D: The custom hardware unit used in this demo is build around Microchip’s PIC18F2550 MCU. This custom USB controller consists with 4 push buttons and linear potentiometer. In supplied demo user needs to control aircraft with those buttons and potentiometer. According to […]

Augmented guitar uses Arduino & Max MSP

Here’s a video by Thebishopgame describing how his Guitarduino works, an Arduino/MaxMSP guitar mounted midi control system: There are 6 arcade buttons on the bridge, three force sensitive resistor squares on the body, and a long FSR strip on the back of the neck. The arduino just takes sensor readings and spits them out the […]

Becks beer bottle with an audio recording scratched on it

Here’s an Instructable by GYRO:  Becks beer bottle with an audio recording scratched on it We ground a high-speed steel cutting tool which we polished to mirror finish resulting in a very quiet cut, all this taking place under a microscope! We also have a couple of sapphire tips which we used for some test […]

DMX lighting sequence player

Paul over at Dorkbotpdx has written an article about his DMX lighting sequence player: Portland CORE effigy at Burning Man will be using DMX controlled lighting this year.  At least that’s the plan, but a low-cost and low-power way to automatically play the lighting sequence (without a PC) is needed.  Here’s a little board I […]