The main difference of the Wi-Fi standards developed from 2009 is the use of the two frequency bands 2.4 GHz and 5 Ghz. The 802.11n standard thus made it possible to allocate bandwidth according to the use of each device. For example, a computer requiring a better connection would be allocated the 5 GHz bandwidth, and therefore benefit from a...

interference between zigbee and wifi frequency 2.4ghz

Both ZigBee and Wi-Fi channels operate in the 2.4 GHz band, the frequencies are very close so interference may occur depending on the channel settings. Careful planning must be done...

wemos mini D1 pro esp module with antenna

New with this wemos D1 mini Pro

5v flat inductive sensor TL-W5MC1-5V for water meter

TL-W5MC1-5V flat shape inductive proximity switch, 30x18x10.5mm, DC NPN NO 5VDC, working voltage 5V, special for MCU.

5v inductive sensor LJ18A3-8Z/BX for water meter

M18 inductive proximity sensor, 8mm, DC 5V NPN, no cylinder/switch, working voltage 5VDC, special for MCU.


The NSPanel Smart Scene Wall Switch is equipped with a built-in powerful thermostat and environmental sensors. You can set different indoor temperatures for different time periods, and NSPanel will automatically...

Grow R503 - Fingerprint sensor

The Grow R503 can collect 200 fingerprints, the recognition rate is high whatever the conditions (dry or wet finger, fine texture or marked texture). It can be easily integrated into...

ESP8266 relay 7-30v ESP-12F

With ESP8266 WiFi module, 4-layer board design. Input overvoltage protection, input with TVS, when the voltage exceeds 33V, the automatic protection works. Input overcurrent protection. Relay 220V 10A, 125V 12A...

colorvu camera hikvision protocol

Chinese colorvu cameras integrating the hikvision protocol are really impressive value for money.