$12.83 (Buy here: https://alitems.com/g/1e8d114494ebda23ff8b16525dc3e8/?i=5&ulp=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2FEM4100-proximity-ID-card-chip-access-control-rfid-reader%2F32507591210.html ) EM4100 proximity ID card chip access control rfid reader for just $12.83
Arduino World | RFID
RFID Reader ID-20LA (125 kHz), $34.95.
16*8 LED Matrix Using Arduino Mega and Shift Register IC 74595 Read more about this at: http://www.learnerswings.com/2014/09/168-led-matrix-using-arduino-mega-and.html
0-30 VDC STABILIZED POWER SUPPLY WITH CURRENT CONTROL 0.002-3 A ~ ELECTRONICS SOLUTION
The toner transfer process of producing PCBs has evolved tremendously over the last few years. It started out by printing PCB layouts onto magazines with a laser printer, then some clever people figur...
ohanalives: Rain barrel
Lovely, simple way to define a space in the yard
One Day Backyard Projects • Ideas & Tutorials! **We did our whole back patio with the cement paver molds pictured at the top!**