Control a stepper motor using Raspberry Pi
https://www.electronics-lab.com/control-stepper-motor-using-raspberry-pi/
Here is a nice tutorial @ raspberrypi.org on how to control a DC motor using Python. In this guide, you’ll be controlling two motors from your Raspberry Pi using Python on the desktop. First, it’s best just to learn how to control the motor. Then, once you have it working, you could easily use your […]
Low-cost current monitor tracks high dc currents
https://www.electronics-lab.com/low-cost-current-monitor-tracks-high-dc-currents/
Susanne Nell @ edn.com has a design idea on how to measure high dc currents. To measure high levels of direct current for overload detection and protection, designers frequently use either a current-shunt resistor or a toroidal core and Hall-effect magnetic-field sensor. Both methods suffer from drawbacks. For example, measuring 20A with a 10-mΩ resistor […]
Charge-pump topology doubles voltage
https://www.electronics-lab.com/charge-pump-topology-doubles-voltage/
Michael Dunn has designed a circuit that is able to double the input voltage and breaks DC path. I once needed a voltage doubler circuit with no DC leakage path between input and output, and ended up devising this unusual 556- (dual 555 timer) based circuit with a “floating” voltage output. Charge-pump topology doubles voltage […]
Temperature controlled Fan
https://www.electronics-lab.com/temperature-controlled-fan-2/
Ahmad Al-Shalabi and Bassma Karbouj show us how to control a DC fan using easy to find components. The fan works when temperature reach into pre-specified threshold. The purpose of this project is creating a cooling system by controlling in a DC fan in a simple way without using Microcontrollers or Arduino but by using […]
9 VDC Regulated Power Supply
https://www.electronics-lab.com/9-vdc-regulated-power-supply/
Tiny low current 9 VDC Regulated Power supply designed around bipolar transistor and zener diode. The circuit is known as series voltage regulator or emitter follower voltage regulator. The unregulated supply fed to input and the circuit regulate the voltage and provide constant 9V DC, 250mA. The zener diode provides the reference voltage to the […]
Build a Cloud-Connected ESP8266 Power Meter
https://www.electronics-lab.com/build-cloud-connected-esp8266-power-meter/
Measure the DC power consumption of your devices on the cloud @ adafruit.com Controlling the electrical consumption in your home is one of the most important thing you can do, both because of environmental concerns & to reduce the electricity bill at the end of the month. There are countless of electrical power meters out […]
DC Motor Direction Controller with tact switches
https://www.electronics-lab.com/dc-motor-direction-controller-with-tact-switches/
DC Motor Direction Control project offers direction control using digital logic gates and a DPDT relay. Features Supply input 12 VDC @ 75 mA Power LED DC Motor Direction LED Yellow/Green Relay Output: up to 7 A Onboard tactile switch for direction control Relay based drive design with diode protection LED indicator for direction indication […]
LMD18200 H-Bridge Module for DC Motor
https://www.electronics-lab.com/lmd18200-h-bridge-module-for-dc-motor/
The module has been designed around LMD18200 from Texas Instruments. The LMD18200 is a 3A H-Bridge designed for motion control applications. The device is built using a multi-technology process which combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. Ideal for driving DC and stepper motors; the LMD18200 accommodates […]
L293D DC Motor Driver Module
https://www.electronics-lab.com/l293d-dc-motor-driver-module/
The project designed around L293D IC. The L293D device is quadruple high-current half-H driver. The 293D is designed to provide bidirectional drive current up to 600mA a voltage from 5V to 36V. L293D Adapter Board can be used as dual DC motor driver or bipolar stepper motor driver. Useful in robotics application, bidirectional DC motor […]
DC Output Solid State Relay
https://www.electronics-lab.com/dc-output-solid-state-relay/
DC Output Solid State Relay 10Amps 60V DC (Optically Isolated Input) This project has been designed around TLP250/352 which is Opto-Coupler IGBT/MOSFET Gate Driver from Toshiba and Mosfet IRFP260 from IR, This relay consists of optically isolated gate driver and low impedance Mosfet. The combination of low resistance and high load current handling capabilities make […]