tinosaurier@feddit.org to Technology@lemmy.worldEnglish · 17 days agoTeardown Of A Scam Ultrasonic Cleanerhackaday.comexternal-linkmessage-square22linkfedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-linkTeardown Of A Scam Ultrasonic Cleanerhackaday.comtinosaurier@feddit.org to Technology@lemmy.worldEnglish · 17 days agomessage-square22linkfedilink
minus-squareshiiiiiiiiiiiiiiiiit@sh.itjust.workslinkfedilinkEnglisharrow-up0·17 days 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.