Posted in 3d Printer hacks, LED Hacks Tagged bargraph, led bar graph, max6954, zombie ← Sudo Google Assistant Arduino (and Camera) Take Amazing Pictures → ...

Posted in LED Hacks Tagged 595, bar graph, led, shift register, transistor array ← What The Flux: Buy It Or Brew It Yourself Fuzzy Time Used To Keep The Kids In Bed → ...

The use of this book as a jumping off point could have used a little help. For example, the LED bar graph uses 10 pins on the Arduino, which is great for an introductory example.