Uploaded October 2022 | Updated September 2026, 2 weeks ago

---

$2 for 2-4 Layer PCBs, free ENIG for 6Layer PCBs：jlcpcb.com/AAA
Get $54 New User Coupon &3D Coupon: bit.ly/3UlsFjE

Free Altium Designer Trial: altium.com/yt/greatscott!
(AD, Paid Promotion)

Previous video: youtu.be/fUdlfc1nJcY
HomeAssistant Video: youtu.be/IvI1RqYPO24

Facebook: facebook.com/greatscottlab
Twitter: twitter.com/GreatScottLab
Instagram: instagram.com/great.scott.lab
Support me for more videos: patreon.com/GreatScott?ty=h
More project information here: patreon.com/posts/73255776?pr=true

Parts list: (affiliate links)
ESP-12F: https://s.click.aliexpress.com/e/_DF1sGi3
HT7833: https://s.click.aliexpress.com/e/_DF5CyKT
5V Power Supply: https://s.click.aliexpress.com/e/_DcZa6Rd
Mini Transformer: https://s.click.aliexpress.com/e/_Dl3T5xv
Current Transformer: https://s.click.aliexpress.com/e/_DmdSnnh
CS5460A Power Measurement IC: https://s.click.aliexpress.com/e/_DBafuRV
0805 Resistors: https://s.click.aliexpress.com/e/_DE6NmIF
0805 Capacitos: https://s.click.aliexpress.com/e/_DkG13Nd
Relay: mouser.de/ProductDetail/655-T9GV1L14-5
Crystal: lcsc.com/product-detail/Crystals_Yangxing-Tech-X49SD4096MSD2SC-1_C2226.html
Choke: lcsc.com/product-detail/Common-Mode-Filters_FH-Guangdong-Fenghua-Advanced-Tech-UU9-8Y-10mH_C75192.html
Varistor: lcsc.com/product-detail/Varistors_Hongzhi-Elec-10D561K_C113236.html
Input Capacitor: lcsc.com/product-detail/Suppression-Capacitors_CORETONG-MPX-104K275VAC-A-B4-10-5-11-7-5MM_C3249977.html
Fuse: lcsc.com/product-detail/Fuse-Holders_XFCN-PTF-77_C717030.html
MOSFET:
Flyback Diode: lcsc.com/product-detail/Diodes-General-Purpose_MDD-Microdiode-Electronics-S3MB_C47524.html
Tactile Switches: lcsc.com/product-detail/Tactile-Switches_XKB-Connectivity-TS-1101-C-W_C318938.html

In this episode of DIY or Buy we will be having a closer look at Smart Plugs, Sockets, Outlets.....However you want to call them. I love using such Smart of Wireless outlets to completely disconnect my appliances from the grid and thus getting rid of the standby power. But commercial smart outlets do often fail when I use them. So in this video we will investigate this problem, find a solution and possibly build the BEST DIY Smart Outlet that exists. Let's get started!

Websites which were shown/used during the video:
esphome.io/components/sensor/cs5460a.html
mouser.de/c/electromechanical/relays-contactors-solenoids/general-purpose-relays/?coil%20voltage=5%20VDC&contact%20current%20rating=20%20A
datasheet.lcsc.com/szlcsc/1909111105_HI-LINK-HLK-PM24_C399250.pdf
circuitjournal.com/esp8266-with-arduino-ide
asset.conrad.com/media10/add/160267/c1/-/en/001425170DS01/datenblatt-1425170-afe-brd-ss-124lm-printrelais-24-vdc-15-a-1-schliesser-1-st.pdf
https://ibex.tech/resources/geek-area/electronics/relays/relay-contact-materials
cirrus.com/products/cs5460a
statics.cirrus.com/pubs/proDatasheet/CS5460A_F6.pdf
mouser.de/ProductDetail/655-T9GV1L14-5
mouser.de/datasheet/2/418/8/ENG_DS_T9G_1216_0321-1281449.pdf

Thanks to JLCPCB for sponsoring this video.
Visit jlcpcb.com to get professional PCBs for low prices.
Thanks to Altium for sponsoring this video.

0:00 The Relay Sticking Problem!
1:42 Intro
2:06 Reason for the Relay Sticking?
3:53 Testing the Solution
5:09 DIY Smart Socket Features
6:01 Power Measurement
8:27 Circuit (PCB) for the DIY Solution
10:13 First Tests & Improvements
10:49 Final Version & Verdict