In this tutorial we will use the radio frequency modules apc220 and arduino mini pro, to turn on lights or any other device, at a distance of up to one kilometer. This project is ideal for controlling devices, where there is no possibility of having internet to control them. Plates and modules used in this […]
In this tutorial we will see how to assemble a servo tester with the legendary 555 integrated circuit. This circuit generates a PWM (pulse width modulation) pulse to be able to move a servo in one direction or another. It is a simple and didactic circuit, with very economical electronic components and easy to find […]
In this tutorial we will see how to create an automatic alcohol dispenser with water, to disinfect hands. It is activated by bringing your hand closer to the reflective infrared sensor tcrt5000l, whose signal is amplified by a ua741cp operational amplifier. The output of this integrated is connected to the base of the tip42c pnp transistor, which […]
In tutorial we will see how to make a complete prototype, to assemble an automatic gel alcohol dispenser with esp32, it will include step-by-step assembly, electronic circuit and also the source code explained all step by step. Artículo en español en –> http://rogerbit.com/wprb/2020/10/dispensador-de-alcohol-en-gel-automatico-con-esp32/ Maybe you might be interested in projects in arduino, pic, robotics, telecommunications, subscribe […]
In this video we will see how to assemble an adjustable power supply, with the lm317 integrated circuit, and other electronic components. This project is ideal, if you want to put together an economical source, easy to make, and perfect to insert into our protoboard. Included is the printed circuit. The LM317t is a monolithic […]
In this tutorial we will see how to make a rhythmic audio meter with the lm3915 integrated circuit. We will look at the list of electronic materials and components, also the assembly of the board step by step and talk about some features of the lm3915 integrated circuit. Field of application This integrated is used […]
In this tutorial we will see how to create a system that allows us to measure the water level remotely, with modules lora DRF1278DM/DRF1276DM (sx1276) and arduino mini pro, in addition the printed circuit is included to create the water probe. We will see the circuits, also the source codes and the operation of the […]
Sobre NanoVNA NanoVNA es un analizador vectorial de redes (VNA) portátil muy pequeño, pero de alto rendimiento, diseñado por edy555 . Es independiente con pantalla LCD, y con batería incorporada. Especificaciones Frecuencia de medición: 50KHz x 300MHz (50KHz -900MHz, habilitar firmware avanzado) – Salida RF: -13 dBm (máximo -9 dBm) – Precisión de frecuencia: -0.5 ppm – Rango […]
