Showing posts with label display. Show all posts
Showing posts with label display. Show all posts
Tuesday, January 6, 2015
Electronic Timer with display circuit
Using this electronic scheme can be built an electronic timer which can be set to measure a maximum of 60 hours.
The electronic timer allows the fixation of some intermediate time. On reaching this point, a buzzer will sound.
The circuit is built using ICM7217 integrated circuit, manufactured by Intersil, which contains a CMOS counter up / down, with 4 digits and display properly.
Saturday, September 13, 2014
How to connect LCD Display on the Arduino using only 2 pins
Generally for connecting an LCD display to an Arduino using 7 strands, it usually breaks the leg that has any projects that remain few ports to be used. But there is a way, using an IC 74LS164 (8-bit serial shift register), a resistor and a diode, but its not just hardware, you have to use a library.
This Arduino library for connection of 2-wire or 3-wire using HD44780 compatible LCD display via shiftregisters. This schema is considered "deprecated", but its worth testing.
LCD Display on the Arduino Circuit
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