Morse code smartphone applications found!
an app for iPhone called SpyLight, that can translate flashing light
to plain text. There are several
morse-apps for the iPhone but this is the only one I got to work with
the BL4 beacon. Since the app runs with a fixed WPM-rate and standard
morse timing (hard to read by the naked eye) I had to alter the sourcecode
(see below). Perhaps I can make the BL4 beacon to alter between improved
timing for easy reading and the faster hard-to-read style that can be
interpreted by SpyLight. I
will make an attempt to contact the creator of SpyLight to see
if there's an interest for making a special
There seems to be some apps for Android as well but I have not tried them. MorseTalk may be an interesting one for Android. (MorseTalk for iPhone have no camera input so it can only read audible code)
Improved software (C-source V1.3) released:
for easier reading.
reading or standard timing optimized for iPhone app "SpyLight".
V1.4 C-source/HEX release:
Today BL4.EU have joined Facebook!
Sourcefile now covers ATmega48/88/168,
Mars 19, 2013:
Sourcecode for a ATtiny13A high power version and wiring diagrams are now available in the download section. The high power version 2.1a have no daylight battery saving and can drive 4x40mA according to AVR port specifications. The ports can probably handle higher peak currents since the average LED on-period is quite short. This is important when running on 4.5V and/or with red LED´s or others with a forward voltage drop lower than the supply voltage. Series resistors may have to be installed even if they waste power.
|Go to download section|
Text and concept by John Ahlberg, Stockholm, Sweden 2013