8254 Programmable Interval Timer Counter
I am doing final year b.tech, i am doing project on 8254 controller. please can u give me information about it. -thanks in advance. from SA 8254 Timer and Counter Board – This is a photo...
Tagged: uC-Timer-Clocks
Isolated RS232 interface to Microcontroller
I’ve seen on the net the schematics for RS232 with Opto-Isolation. The supply on the PC side is from the PC. The supply from the line side is external? I’ve seen the 3 connectors...
555 watchdog for uC and uP systems
When the microcontroller hangs due to a spike, EMI or RFI etc. the 7555 will reset the uC, if proper power supply design is done above circuit can also give a clean power on...
uC Board is Buggy on Brown Out
I’m working on a project which involves battery Ni-Mh 4×1.2v, 2100mAh], which power-ups the boards. The current consumption is about 150mA. Now what I wish to do is disconect the load when my battery...
