Arduino helps in simple interfacing for different modules. Here is an implementation of fingerprint sensor interface with Arduino Uno board. Four push buttons are used for input. The menu on LCD guides the enrollment and scanning process. The connections for hardware are described in image. Continue reading “Arduino UNO based fingerprint sensor interface”
Category: Electronics
electronics diy stuff
NOAA image reception using RTL SDR
An attempt to receive and decode NOAA images using the EZCAP DVB basically a RF tuner with rtl2382u tuner chip. NOAA satellites are transmitting images on following frequencies
NOAA 15 – 137.620 MHz Continue reading “NOAA image reception using RTL SDR”
DIY PCB
Making electronics projects and finally watching them work is very interesting. But assembling components on a general purpose PCB is very cumbersome. It’s is a very time consuming task and sometimes the circuit mess up so much that it becomes irritating to work. It will be a great if one can fabricate PCB (Printed Circuit Board) for electronics projects at home. It is an interesting task for any electronics hobbyist. It saves time to complete a project and also increases the reliability of project. Continue reading “DIY PCB”