Basics of Phase Dots on Transformer Windings
https://www.electronics-lab.com/basics-of-phase-dots-on-transformer-windings/
This video describes what the “phase dots” are that you often see adjacent to windings of a transformer. It discusses how these dots are used in certain circuits to establish a desired phase relationship between the signals on the various windings. A couple of tips are given regarding how to determine the phasing relationship on […]
Analog Ultrasound Range Finder
https://www.electronics-lab.com/analog-ultrasound-range-finder/
by netzener @ instructables.com: When I started my career in control systems I was fascinated with the many different ways that machines could be interfaced to the environment they operated in. Limit switches (electrical and optical), encoders, resolvers, strain gauges, thermocouples… the control system engineer had a long list of sensors to choose from. And the […]
UT204 is able to measure DC current and also True RMS
https://www.electronics-lab.com/ut204-is-able-to-measure-dc-current-and-also-true-rms-2/
Clamp multimeter UT204 measures reliably even in real conditions of nowadays mains supplies and for an affordable price moreover. UT204 from company UNI-Trend is a near relative to the UT203. multimeter. Already UT203 provides a lot of user comfort and a very pleasant feature – measuring of a DC current without interrupting a measured circuit. […]
RFM69HCW transceiver can go up to 20dBm
https://www.electronics-lab.com/rfm69hcw-transceiver-can-go-up-to-20dbm/
This powerful RF transceiver is also highly secure thanks to a HW support of CRC-16 and AES-128. The RFM69HCW is a highly integrated RF transceiver capable of operation over a wide frequency range, including the 433, 868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. Its highly integrated architecture allows for a […]
Arduino dust sensor
https://www.electronics-lab.com/arduino-dust-sensor/
Shadowandy’s Arduino-based Dust Sensor project: Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield. The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you can view the sampling results using Arduino IDE’s Serial Monitor (9600 […]
RS232 To RS485 Module
https://www.electronics-lab.com/rs232-to-rs485-module-2/
RS232 to RS485 Board (R) provides a seamless connection of the PC to an RS485 network. Simplex connection of this interface to the RS485 network Easy way of switching the modes between Receiver and Transmitter ( Slide Switch) 5 V regulated supply provision on board 9-pin, PCB mounted, Female type D-connector available Supply can also […]
DTMF Module
https://www.electronics-lab.com/dtmf-module/
DTMF Development Board offers a very convenient way to generate DTMF tones and demodulate it. It uses the famous MT8880/MT8888 DTMF transreceiver IC. Easy 10 pin Box Header connector for interfacing data/control pins Crystal derived frequency source for accurate generation and demodulation of DTMF tones for your project Onboard upto 350 mW audio amplifier block […]
RS232 to RS485 Module
https://www.electronics-lab.com/project/rs232-to-rs485-module-2/
RS232 to RS485 Board (R) provides a seamless connection of the PC to an RS485 network. Simplex connection of this interface to the RS485 network Easy way of switching the modes between Receiver and Transmitter ( Slide Switch) 5 V regulated supply provision on board 9-pin, PCB mounted, Female type D-connector available Supply can […]
DTMF Module
https://www.electronics-lab.com/project/dtmf-module/
DTMF Development Board offers a very convenient way to generate DTMF tones and demodulate it. It uses the famous MT8880/MT8888 DTMF transreceiver IC. Easy 10 pin Box Header connector for interfacing data/control pins Crystal derived frequency source for accurate generation and demodulation of DTMF tones for your project Onboard upto 350 mW audio amplifier […]
Matchbox car
https://www.electronics-lab.com/matchbox-car/
Shane has been working on making small robots and made a prototype of a matchbox car, a robot car that fits inside a matchbox: This build consists of a tiny DC motors ripped from a pair of 9g servos, a h-bridge motor controller, an el-cheapo 8 bit pic and a 100mAh 3.7V LiPo battery. Matchbox […]