Sound Sensor with onboard Relay Arduino Nano Shield
https://www.electronics-lab.com/sound-sensor-onboard-relay-arduino-nano-shield/
This sound sensor with Relay driver shield for Arduino Nano can be used to develop sound-activated ON/OFF switch or other projects that require sound senor. LM358 op-amp is used as the amplifier, 1st op-amp amplifies the microphone signal, and 2nd op-amp works as a half-bridge rectifier that converts AC signal into a DC voltage. This […]
Bridgetek Introduces New PanL Hardware for the Controlling of Smart Devices
https://www.electronics-lab.com/bridgetek-introduces-new-panl-hardware-controlling-smart-devices/
Bridgetek has further extended the scope of possibilities addressed by its PanL home automation connectivity platform – with release of the PanL Relay. The purpose of this latest unit is to bring greater functionality to installed systems, thereby leading to heightened levels of comfort. It serves as a means to deliver smart switching capabilities, via […]
World’s First MOS FET Relay Module “G3VM-21MT” with Solid State Relay in “T-type Circuit Structure”
https://www.electronics-lab.com/worlds-first-mos-fet-relay-module-g3vm-21mt-solid-state-relay-t-type-circuit-structure/
OMRON Corporation of Kyoto, western Japan globally released its new MOS FET (*1) relay module “G3VM-21MT” on December 2, 2019. The product is the first electronic component in the world (2) to adopt a “T-type circuit structure” (3). With a T-type circuit structure consisting of compact-size and longer-lifecycle solid-state relays that output signals using no physical contact, the relay […]
Free Elektor Article: A 3-Dollar Tiny Wi-Fi Switch That Works
https://www.electronics-lab.com/free-elektor-article-3-dollar-tiny-wi-fi-switch-works/
Out of curiosity I ordered a tiny ESP8266 relay switch board from aliexpress.com, for next to nothing. Blissfully unaware, then, of the struggle ahead to make the thing work as advertised. I survived and conquered — here’s the story. By Somnath Bera @ elektormagazine.com The little gizmo pictured in Figure 1 was stated by the vendor(s) […]
Toshiba Launches Voltage Drive Photorelay with a Tiny 2.9mm2 Footprint
https://www.electronics-lab.com/toshiba-launches-voltage-drive-photorelay-tiny-2-9mm2-footprint/
Tiny device features lower input power to reduce equipment size and power consumption Toshiba Electronics Europe (“Toshiba”) announces the availability of a new voltage driven photorelay with a tiny S-VSON4T package and reduced input power dissipation. The new product, designated TLP3407SR, features a maximum LED current of just 1 mA at the input, which represents a […]
Window Comparator – Window Detector with relay output
https://www.electronics-lab.com/window-comparator-window-detector-relay-output/
A window detector circuit, also called window comparator circuit or dual edge limit detector circuit is used to determine whether an unknown input is between two precise reference threshold voltages. It employs two comparators to detect over-voltage or under-voltage condition. This circuit utilizes two comparators in parallel to determine if a signal is between two […]
How to lower relay power consumption
https://www.electronics-lab.com/lower-relay-power-consumption/
Clever way of starting-up relays discussed in this app note from Maxim Integrated. via dangerousprototypes.com Relays are often used as electrically controlled switches. Unlike transistors, their switch contacts are electrically isolated from the control input. On the other hand, the power dissipation in a relay coil may be unattractive for battery-operated applications. You can lower […]
Ethernet Relay board
https://www.electronics-lab.com/ethernet-relay-board/
LAN interface with 4 relays, 8 programmable I/Os and 4 analog inputs, IoT-ready. How many times have you read or heard about the Internet of things (Iot)? The Internet of things is an expression that is becoming more and more popular lately; it represents the expansion of the Internet into the world of objects and […]
Understanding Relay Coil Voltage Specifications
https://www.electronics-lab.com/understanding-relay-coil-voltage-specifications/
by Robert_Fay @ digikey.com: When learning about relays there are a couple coil voltage specifications that can be a little tricky to understand. There are typically 4 specification for coil voltage listed in the datasheet. For this example we will be looking at relay part Z2352-ND 14. This is a SPST non-latching relay with 1 […]
4 Channel Relay Shield for Arduino UNO
https://www.electronics-lab.com/4-channel-relay-shield-arduino-uno/
4 Channel Relay Shield for Arduino UNO is a simple and convenient way to interface 4 relays for switching applications in your project. Very compact design that can fit on top of Arduino UNO. Project requires 12V DC supply, all 4 trigger inputs require TTL signal, Relay-1 to Relay-4 inputs connected to D8 To D11 […]