The versatile Bar-Graph SMD components based R/C monitor & R/C switch is a great tool for R/C hobbyist R/C modeller and DIY robotics. Tiny Bar-Graph displays provide a Red color bright, easy to read display of Radio Control (R/C) signal from 1mS to 2mS. The Barograph RC Signal reader is based on PIC16F886 microcontroller. This […]
RC Signal Monitor Using Bargraph & RC Switch using Relay Read More »
In recent weeks a number of ESP8266 devices have become available offering more than the previous defacto maximum of 4MB of flash memory. Wemos’s D1 mini pro offers 16MB of flash, and the ESP-100 claims to offer 8MB. To put this in context, the original ESP8266 modules (such as the ESP-01) offered 512KB of flash,
ESP8266 16MB Flash Handling Read More »
In a previous post I have presented a design for an MPPT Solar Charger. In the mean time I have built a prototype and also wrote some software for it. So today I’ll go through my findings of what works well and what needs to be improved. And yes, there are some flaws in the
MPPT solar charger Read More »
NextThing Co., is a hardware company that has the goal to create things that would inspire creativity, and help people chase their own ideas of what needed to exist. After producing their world’s first $9 computer C.H.I.P, they are ready now to launch a new product!C.H.I.P Pro, the newest addition to the Next Thing Co.
C.H.I.P Pro The New GR8-Based Module Read More »
Spectral signature is a characteristic property of a material that represent how the matter interacts with an electromagnetic radiation at different wavelengths. By looking at the reflectance spectra of a material, scientists can not only retrieve vital information like the chemical composition and crystal structure of the material, but also the presence of any impurities or third element within it.
DIY portable spectrometer Read More »
Use of traffic navigation apps to minimize the wait time on road is very common for drivers these days. Google navigation gathers data from the drivers who are navigating via Google Maps and shows the traffic flow on smartphones in real time. While this is a great feature to have in smartphone, it would be nice
Traffic status on a wall clock Read More »
MQTT LED Matrix Display 7 Replies My MQTT network at home moves up and down a lot of messages: sensor values, triggers, notifications, device statuses,… I use Node-RED to forward the important ones to PushOver and some others to a Blynk application. But I also happen to have an LED display at home and that
64×16 MQTT LED Matrix Display Read More »
Researchers have created a high voltage and high frequency silicon carbide (SiC) power switch that could cost much less than similarly rated SiC power switches. The findings could lead to early applications in the power industry, especially in power converters like medium voltage drives, solid state transformers and high voltage transmissions and circuit breakers. Researchers
A Cost-efficient Super-Cascode SiC Switch Read More »
Hello and welcome to my first Instructable. I will show you how to send emails from any ESP8266 wifi module using Gmail server. This instructable relies on Arduino core for ESP8266 WiFi chip, which makes a self-contained microcontroller from it (no need of AT commands and master devices). You can connect sensors and get notified
ESP8266 GMail sender Read More »
Web Bluetooth is a developing JavaScript API to allow websites to communicate with Bluetooth devices. Sites ask the browser to show a list of nearby Bluetooth devices matching certain criteria, and the user either picks which to grant access to or cancels the dialog. As you might expect, there are security risks here. When deciding
The Web Bluetooth Security Model Read More »
