Reed Switch Overkill?

erco

Browsing Ebay I found a reed switch "breakout board" with a 393 dual comparator, adjustment pot, some LEDs & passives. Has the world gone mad for 3-pin sensor modules? What is there to adjust? If it were me, I'd just use... a reed switch. I'm silly that way. https://www.ebay.com/itm/392523381290

Wuerfel_21

I think they just use that same board for a variety of sensors that need a comparator to get a strong logic drive out of them. Soldering a reed switch to it is cheap I guess.

localroger

Could also be debouncing.

Mickster

Delay on/off?

xanadu

When does the shield version come out?

Phil Pilgrim (PhiPi)

I'm holding out for Wifi-enabled.

-Phil

DigitalBob

They also have a dual reed switch version.

erco

Phil Pilgrim (PhiPi) wrote: »

I'm holding out for Wifi-enabled.

xanadu wrote: »

When does the shield version come out?

You boyz are all right! Now keep washing those hands and stay safe, so we can keep up this hijinks a good while longer.

frank freedman

Well, the thing is pretty well protected by the fuses on two of the three pins.......

yisiguro

Is this below?
”LDR Sensor Module”
https://potentiallabs.com/cart/buy-photo-resistor-ldr- light-sensor-module

Similar but another one:
https://create.arduino.cc/projecthub/kiranpaul/light-magic-using-lm393-and-arduino-uno-14eadc

Erlend

Be careful not to reverse the polarity of the Reed relay, it could have devastating effects. Fortunately the board is marked with +/- signs.