I borrowed a few lines of code from the hexbright dazzle demo to create a new bedazzled version of my custom firmware. The dazzle mode is activated by holding down the push button for more than 500 ms at power on.
Also of interest:
The Hexbright is an Arduino-compatible open source flashlight that was the subject of a very successful kickstarter campaign in 2011.
Today I spent a short time working on some custom firmware for it.
My firmware adds two new features:
- Button presses cycle between modes (low, med, high brightness) as usual, but if you wait longer than CYCLE_DELAY (default 5 seconds) between presses, the next press turns the hexbright off.
- If the hexbright is left on for longer than AUTO_OFF_MINUTES (defaults to an hour), the hexbright turns off. Handy for when you prop the light somewhere and forget about it.
You can download my custom Hexbright Arduino sketch here. If you’re new to the Hexbright, read these well-written instructions first. You’ll need to install the required USB driver and Arduino board configuration file.
Amazon link: HexBright FLEX, 500 Lumen Programmable LED Flashlight
I thought I’d share with other users of the HV Rescue shield an enhanced Arduino script I have written, based on Jeff’s original software v212.
The new software retains the look and feel of the original, it can still be run in interactive and non interactive mode and starts by requesting the AVR family as before. The existing fuse settings are then printed along with the device signature and lock bits. After this the user is presented with a menu of functions.
The E command allows the user to erase the AVR.
The F command allows the fuses to be set as before. OK or fail will be printed depending on the success of the operation.
The R command allows a block of the flash memory to be dumped to screen. The user has to input the required start address in hex.
The P command is similar to the R command but operates on the EEPROM
The W command performs a simple test of the flash by writing a small block of data to it and checking it programs correctly. The user has to input the required start address in hex, which must be the first byte of a page (see device datasheet for details about page size). The user can view the test pattern written by using the R command to read it back.
The T command performs a similar test on the EEPROM but with a different shorter 4 byte pattern as EEPROM page sizes are smaller.
Dennis posted a link to his alternative software in the HV Rescue Shield support forum.
The Amp Hour #43 — Audacious Arduino Arguments
Our first four-way podcast! Listen to me, Chris, Dave, and Jeremy chat about Arduino, high altitude balloons, hackerspaces in universities, the Google ADK, and the Maker Faire Bay Area.
Kudos to Skype for enabling us to actually pull this off!
The “Soldering is Easy” comic book that was released on Monday will be included in a cool book that Mitch Altman (@maltman23) and I are writing about How to Make Cool Things with Microcontrollers (For People Who Know Nothing). It will be published by No Starch Press later this year.
If you would like to be notified when the book is published, please submit your e-mail address below.