25 Projects of Christmas
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 Day 8 
 AJB2K3 - Wrist mounted heart monitor
 Hans-Günther Nusseck - How to save money with IOT
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 Day 9 
 AJB2K3 - Using the UNITOLED
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 Day 10 
 GPerrella - Xmas Air Monitor
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 Day 11 
 Enrico Casti - M5Stamp Christmas Tree
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 Day 13 
 Hans-Günther Nusseck - Altitude sickness due to cooker hoods?
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 Day 16 
 Hans-Günther Nusseck - sensor comparison.
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 Day 18 
 Enrico Casti - Santa Claus Phototrap.
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 Day 19 Kelly Sprayberry - Neopixel light show. 
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 Day 20 
 Enrico Casti - Christmas Jukebox
 Hans-Günther Nusseck - Where on earth is the Hall effect sensor of the ESP32?
 AJB2K3 - New Brains for Mio
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 Day 21 
 GPerrella - Xmas Party Fever Control
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 Bonus Projects 
 Hans-Günther Nusseck - Digital Dice with IOT function.
