Shift Registers. Never be short on pins again

If you need to control a lot of inputs / outputs on a MicroController, Shift registers are the way to go. In this project I’m using shift registers to build a circuit that control endless LEDS from 5 pins of a Micro controller

Homemade Shift register Module

Homemade Shift register Module

I’m making a LED display inspired by the old-timey neon signs with handwritten font; The LEDs will light up one by one to illuminate the sign.
In this project i used the Digispark attiny85: These tiny boards only have 6 GPIO pins so to manage a large amount of LEDS with a limited number of pins, you’ll need shift registers.

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Follow my balcony on twitter

A fun IoT starter project is temperature sensors: Everyone cares about the weather. I am using the esp8266 and a DS18b20 sensor to post the temperature on my balcony to twitter.

Twitter IoT
Twitter update made by my balcony

For the current version of this project i`m using a Wemos D1 Mini that i had laying around: rev1 used an ESP8266-01, but that version of the esp has some disadvantages when it comes to IoT Sensor applications: Power management

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