tinosaurier@feddit.org to Technology@lemmy.worldEnglish · 1 month agoTeardown Of A Scam Ultrasonic Cleanerhackaday.comexternal-linkmessage-square11fedilinkarrow-up12arrow-down10
arrow-up12arrow-down1external-linkTeardown Of A Scam Ultrasonic Cleanerhackaday.comtinosaurier@feddit.org to Technology@lemmy.worldEnglish · 1 month agomessage-square11fedilink
minus-squareshiiiiiiiiiiiiiiiiit@sh.itjust.workslinkfedilinkEnglisharrow-up1·1 month agoI ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.
I ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.