In this article, we will discuss the opportunities to add a BLE controlled system of ESP32 in parallel to the central lock fitted by the company which will unlock and lock our cars based on proximity of our smartwatches. Our regular readers already learned how to use ESP32 Arduino with a buzzer to detect a Samsung Smartwatch. Also, they can track such events on IBM IoT dashboard. The car's … [Read more...]
Hardware
Detailed article on computer hardware parts like RAM, Motherboard, Processor, Graphics card. Hardware also covers topics on hardware of Server, Single Board Computers like Raspberry Pi to Libre Hardware Projects.
Technologies in the 3D Slot Game Industry
There is no way to deny that, over the last handful of years, slot machines and server-based gaming have had a huge makeover. The industry has been advancing at a tremendous speed, and opportunities for the software developers are increasing. Now not only can they be played in pubs, clubs, and casinos, but they can also be played online in virtual casinos, and the gameplay is just the same as it … [Read more...]
ESP32 as Hardware Random Number Generator
The capability of the ESP32 to generate truly random numbers is important for cryptographic operations. A random number generator generates a sequence of random numbers. A hardware random number generator is also known as a true random number generator. It generates random numbers from some physical process, not from code. A fundamental distinction is made between non-deterministic and … [Read more...]
How Server-Based Gaming (SBG) Works
The casino industry uses the server-based gaming (SBG) hardware system to operate Video Lottery Terminals slot machines. General non-casino gaming systems differ from the casino systems in various ways. Server-Based Gaming (SBG) is built upon the server-centric gaming technology borrowing the principles from thin client. Reliability, scalability and stability are few of the requirements in the … [Read more...]
IoT IR Remote Control with ESP32 Arduino and IBM Watson IoT
In this article, we are discussing the overall hardware, code and library we will need. This article is not about building one particular project. Infrared (IR) remote control technology is widely used in day to day used devices. IR remote control signals are a reliable resource to control nearby electrical appliances. With the development of ESP32 like cheaper system on chip and Internet of … [Read more...]
How to Run an ESP32 on Battery
The operating voltage range of ESP32 is 2.2V to 3.6V. The ESP32 boards have an LDO voltage regulator to keep the voltage at 3.3V. The output of the regulator is also broken out to one of the sides of the board and labelled as 3V3 which can be used to supply power to the other components. The VIN pin can be used to directly supply the ESP32 a regulated 5V voltage electricity supply. In other words, … [Read more...]
ESP32 vs Arduino : How ESP32 is Different from Arduino
ESP32 is a low cost, low power consuming System on Chip (SoC) with integrated Wi-Fi and Bluetooth compatible with Arduino IDE. In other words, an ESP32 board can be used as "Arduino" following some guide like we have published one in the past. ESP32 is developed by Espressif Systems and has a Tensilica Xtensa LX6 microprocessor. By the phrase "Arduino", we mean the boards which are designed and … [Read more...]
ESP32 Arduino Smartwatch Detector with Buzzer
The series of article Samsung Smartwatch as Proximity Switch taught our readers to learn all required the basic to make ESP32 to respond to a specific smartwatch's BLE. The same basic was used for the IoT project Detect Smartwatch With ESP32 on IBM Watson IoT Widget. But, still today in everyday life we depend on sound clues more than the visual clues. A door bell or a smoke detector are some … [Read more...]
ESP32 Audio Output
The ESP32 has a built-in 8-bit DAC. Digital to the analogue signal converter or analogue-digital converter or DAC is a device to convert digital signals with binary data into current or analogue voltage signals. For better sound quality, we can use an external I2S codec and amp. Adafruit I2S amp uses a MAX98357A IC. The MAX98357 is a low-cost, digital pulse-code modulation (PCM) input amplifier. … [Read more...]
Reusing the Technologies of Latest Vaping Devices
The goal of this article is to discuss the art of engineering employed in various mods which may be employed in other devices of day to day usage. Vaping can be illegal or restricted in certain countries. Purpose of this article is not to encourage breaking the laws. For developmental purpose, first, we need to briefly discuss the construction of an e-cigarette. Table of Contents 1 … [Read more...]
Note on Calculating Distance From RSSI Value of BLE Devices
A quick question from one reader after publication of Smartwatch BLE to Trigger IBM Watson IoT Event was "can I measure the distance in meters and broadcast?". The answer is - it is not reliable with easy formula against a single BLE device. If we were using Raspberry Pi, then we could think of using complex coding. BLE technology and works with Indoor Location Positioning is not new. RSSI … [Read more...]
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