Page 1 of 1
Relay Driver for SBL2e
Posted: Tue Jan 18, 2011 12:24 pm
by BillC
Hi, can anyone recomend a simple relay driver circuit or IC that can be used to interface the SBL2e digital outputs to a 5V or 12V relay. I am looking for a solution that I can hand wire on to a 0.1inch pitch breadboard.
Thanks
Bill
Re: Relay Driver for SBL2e
Posted: Tue Jan 18, 2011 1:28 pm
by Chris Ruff
Bill
the best. absolutely. ULN2003.
figuring 12 volt relays:
connect ULN2003 8 to ground
connect ULN2003 9 to +12
connect ULN2003 16-10 to relay coil pin 1
connect relay coil pins 2 to +12
connect ULN2003 1-7 to your processor - no resistor needed - 3.3 volts is fine
7 ballsy outputs with diode deflash
Chris
Re: Relay Driver for SBL2e
Posted: Tue Jan 18, 2011 1:44 pm
by rhopf1
I like NUD3112 for small relays and MIC4421 for larger.
Re: Relay Driver for SBL2e
Posted: Tue Jan 18, 2011 2:02 pm
by BillC
Thanks guys, it looks like both your solutions would suit my purposes, it just depends upon how many relays I decide I need.
I havent fully decided to use the SBL2e yet , I am also looking at the Roving Networks RN121 with inbuilt Wifi.
Thanks again, Bill