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Forum Index : Microcontroller and PC projects : DHT22 and HC-SR04 sensors being given away very cheaply

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EDNEDN
Senior Member

Joined: 18/02/2023
Location: United States
Posts: 299
Posted: 03:47am 22 Jul 2026
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At least for people in the USA there is free shipping and a new batch of them shows up every couple of days.    Typically, they go for under $.20 each.    

I've loaded up with a bunch of them, mostly at $.10 per sensor.   But I have a lifetime supply now, so I won't be bidding any more.  I won't be bumping the price up.

Check it out:  

industrial automation supply

and

industrial automation center

They also have A4988 Stepper motor driver boards very often for a few cents.

If you go to the link and it says "We are sold out, but here are some other stores you may be interested in." it probably means you are not located where they are willing to give you free shipping.     I see that message when I have a VPN active in a 3rd world country.
Edited 2026-07-22 14:00 by EDNEDN
 
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