Motorcycle custom instrument panel
Josh from Colorado build a nice dashboard for this motorcycle based on ATMega128 and EPSON S1D13700 LCD Screen: Since the GSXR is now a street fighter the factory gauges won’t do, and I wanted something I could log air/fuel ratios with so I can jet the bike. I went a little...
Continue ReadingOpen Badge: The LED Badge
Rohit Gupta published a new build, the OpenBadge The major elements on the PCB were: – LED Matrix – A MSP430G2553 microcontroller brain – A ULN2803 Darlington Driver to sink the current – A USB connector to charge the battery – A SBW connector to program the...
Continue ReadingPortable GPS Data Logger
elm-chan.org has build a portable GPS logger based on ATMega328 mcu: I have built a GPS Logger and it works very well to trace the drove route for two years. By the way, the navigation solution computed by GPS receiver itself has an excellent accuracy without DGPS because an...
Continue ReadingDIY milliohmmeter
by hwmakers.eu: This is an example of a simple and cheap milliohmmeter that can be made by every maker. The core of the circuit are a current source (LT3092) and a current sense (INA225): a costant current flows through the milliohm resistor under test and the voltage at the current...
Continue ReadingAnti-Drowsiness Alarm
This reference design is an anti-drowsiness alarm, which aims to keep the drivers alert by disrupting one’s drowse. According to the study by U. S. National Highway Traffic Safety Administration (NHTSA), drowsy driving is the primary contributor of at least 100,000 auto crashes a...
Continue ReadingHow to use a Serial Voice Recognition Module
by codebender_cc @ instructables.com: In this tutorial you will learn how to use a voice recognition - serial - module with the Arduino uno board. This module can store up to 15 voice commands. Those are divided into 3 groups, with 5 commands in each group. First we should train...
Continue ReadingWifi throwie : improved version
iotests.blogspot.fr build a throwie based on ESP8266 WiFi module and a mini drone battery, he writes: A few months ago, Andreas presented a nice version of the "throwie" (a LED packed with a small battery that you can throw & see shining for hours) using an ESP8266 instead of a...
Continue ReadingLED-based time-of-flight IC for object detection and distance measurement
by Lee Goldberg @ edn.com: Although Intersil's ISL29501 time-of-flight (ToF) signal processing IC doesn't have anything to do with the lighting applications I normally cover, I felt compelled to bring it to your attention because it's one of the most innovative LED applications...
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