LEAP#367 nRF24 Scanner
While trying to improve the range of nRF24L01+ some modules, and got distracted into building a channel scanner. The basic code is from the RF24 library examples, but this gets pimped up with a Nokia 5110 LCD display, multiple modes and a handy enclosure.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#365 Driving a Nokia 5110 LCD with the Adafruit library
I’ve been having SPI conflicts with other libraries I’ve used for controlling the Nokia 5110 LCD, so time to pull out the big guns - the wonderful Adafruit library set which includes a PCD8544 module.
I started with a few tests of the hardware and software SPI modes.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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LEAP#364 Classic Nokia Ringtone
For obscure reasons, I wanted a version of the classic Nokia ringtone on an Arduino. So… I transcribed the score in Guitar Pro and tested it in a little sketch.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
Here’s a quick demo:
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LEAP#363 BINCO fidget counter
The BINCO a binary counter that can be configured to count up or down. It uses Snaptron domes as buttons (on, slow/fast a,d rest). The heart of the counter is a 555 timer driving a 74HC4020D 14-bit Binary Counter from which 11 taps drive some nice reverse-mount LEDs.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub
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