Seven segment displays are usually a pain to use, as they require a lot of pins from a microcontroller to operate. Thankfully, Adafruit has made it a lot easier to use a seven segment display by giving you four digits that only require 2 wires from your microcontroller to operate. Even better, you can connect multiple displays together and still only use two pins. You can easily work one of these displays into your halloween project. Here are a few projects that use the Adafruit seven segment displays to give you some inspiration.
HAPPY HALLOWEEN! Each day this month (Monday-Friday) we’re going to have a special “Electronic Halloween” post here on Adafruit. It will be a hack, mod, project or something we’ve found that combines all the best things about electronics and Halloween.
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Maker Business — “The Essential Guide to Electronics in Shenzhen – Delivery Update”
Wearables — Freezer paper magic
Electronics — Emergency ferrite
Biohacking — Biohack: DMSO for Transdermal Substance Delivery
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