Previously we have published a few articles on Neopixel Ring, such as spindicator/chase effect with NeoPixel ring. Also, we have published one article on Get Time & Date From NTP Server (you can read about NTP server here). If you combine these two principles, you can build a simple clock based around an ESP32 Arduino to fetch time from an NTP server and a Neopixel Ring to display hours, … [Read more...]
All About Nixie Tubes
A Nixie tube is an electronic component for the representation of signs according to the principle of the glow lamp. Due to their special appearance, Nixie tubes have now become popular again, so they are used by hobbyists, for example, to build digital clocks. Nixies have therefore been restored for some time now. A glow lamp is a gas discharge tube that uses the glow discharge to generate a … [Read more...]
What is Analog-to-Digital Converter (ADC)
An analog-to-digital converter is an electronic device, component, or part of a device for converting analog input signals into a digital data stream, which can then be further processed or stored. A variety of conversion processes are in use. The counterpart is the digital-to-analog converter (DAC). Analog-to-digital converters are elementary components of almost all devices of modern … [Read more...]
What is a Digital-to-Analog Converter (DAC)
A digital-to-analog converter (DAC) is an electronic component whose function is to transform a digital value (encoded on several bits) into an analog value proportional to the encoded digital value. A digital-to-analog converter is an elementary components of almost all devices of digital consumer electronics (e.g. music players) and communication technology (e.g. smartphones). Typically, the DAC … [Read more...]
What is In-System Programming (ISP)
The In-System programming (ISP), also known as In-circuit serial programming (ICSP), enables the programming of a logical circuit directly in the deployment system. A simple serial connection, e.g. JTAG or SPI, is usually used for this purpose. The advantage of in-system programming is that otherwise the block to be programmed would have to be removed from the target system or a further … [Read more...]
What is a Battery Charge Controller
A charge controller or charging circuit has the task of technically implementing the charging method for charging batteries. The different types of accumulators also require different charging methods. In current concepts, this is achieved by power electronics, while older charge controllers in motor vehicles with DC alternators also work electromechanically. They had switching coils, similar to … [Read more...]
What is An In-Circuit Emulator (ICE)?
An In-Circuit Emulator (ICE) is a tool to develop the software for an embedded system. For the development of the software, the controller normally present in the system is replaced by a special variant that is directly connected to the ICE. An in-circuit emulator also called in-circuit emulator (ICE) or on-circuit debugger (OCD) or background debug module (BDM) is a hardware device for debugging … [Read more...]
Arduino NeoPixel Ring VU Meter (USB-to-Serial)
For this tutorial, we will need to send live data over USB to the microcontroller. On paper, you can send data between ESP32 and a computer through USB but in real life, people often face problems with ESP32. CP2102 USB to UART Bridge provides a complete plug-and-play interface solution: [crayon-6a11424b9193b347508362/] The failproof way is to use Adafruit Metro Mini as a microcontroller … [Read more...]
NeoPixel VU Meter With SP107E LED Music Controller
SP107E is an LED music controller (which is made in China) that costs around $20 and you can use a NeoPixel ring or NeoPixel strip or NeoPixel display matrix (according to your need) to build your own NeoPixel VU Meter. Our readers may ask, why we are not using Arduino or ESP32 instead using SP107E. The fact is that SP107E is a ready-to-use unit with various options for audio input and a … [Read more...]
What is System in a Package?
System-in-Package (SiP) is an integration approach in microelectronics that is technically located between monolithic on-chip integration (system-on-a-chip, SoC) on a die (unpackaged semiconductor chip) and on-board integration of discrete components on a printed circuit board (PCB) or on a multi-chip module (MCM). Passive and active components as well as other components are combined in a package … [Read more...]
Required Parts to Build a Servo Steering Controlled Robot Car (Arduino/ESP32)
To build an Arduino or ESP32-powered 4-wheel robot car, you need some specific parts including a special chassis. In the case of ordinary 4-wheel drive, the wheel mechanism is less complex. You need rear-wheel drive plus a front steering mechanism to properly steer. As this kind of chassis is built using the professional remote-control racing principle. They use two rods through the steering servo … [Read more...]