An IR blaster emulates an infrared remote control to control devices such as a DVR or VCR, Air Conditioner, Television and so on. IR blaster was a common feature of Nokia's most of the mid-range smartphones of the 2000 era. Most of the manufacturers (read Samsung) have stopped including this feature at least in the mid-range phones. This is not just another article to join two IR LEDs with a 3.5mm … [Read more...]
Samsung Smartwatch as Proximity Switch : Part V [END]
This is the final part of the series. In Part I, we talked about the basics which continued to Part II. Part III had a working code non-specific to any particular device. Part IV had a partially working code specific to a particular device. circuitdigest.com's code (in Part IV) was not working with Samsung Galaxy Watch LTE. Samsung's smartwatches shutdown both BLE and traditional … [Read more...]
ESP32 BLE Server with Android App
BLE only works when one communication is active and stays ON. Else it remains in sleep mode. Beacons are great usage of BLE. In our series of articles on Samsung Smartwatch as Proximity Switch, we have used the ESP32 as client. In this article, we are talking about using ESP32 BLE as a server. In our series of articles on Samsung Smartwatch as Proximity Switch, we discussed GATT Service and BLE … [Read more...]
Can We Reprogram a Musical Greeting Card Circuit?
The easy time-saving answer is "do not try". All of them are cheap. The original "chip corders" were developed by Richard Simko, sold by ISD could record 20 seconds of the analogue signal. Later, Nuvoton acquired ISD and developed for longer record times at relatively inexpensive end cost. A web search with the phrase "Chip Corder" should give you plenty of examples of the chips. If there is a … [Read more...]
Galaxy Watch LTE Versus Active 2 LTE
They are not comparable as watches. They can be compared only for the specification part. These two watches are different for their look, not exactly they are too different from the specification point of view. May be, Samsung wanted two watches, one with a masculine sports design and another with a normal watch look. Over 5 years, smartwatches evolved in design and in the functionalities they … [Read more...]
Samsung Smartwatch as Proximity Switch : Part III
Instead of publishing a single article on a complex matter, we split into parts. This methodology makes the thing boring to the initial readers but in the long term, the readers can browse our website and fix themselves. In the previous two parts of this topic (here is part I and here is part II), we created the base with theory and practical so that even an unused reader does not get confused or … [Read more...]
Samsung Smartwatch as Proximity Switch : Part I
It is not just easy to use the BLE of Samsung Galaxy Smartwatch. Because BLE of Samsung Galaxy Smartwatch is designed to work with their intended purposes, such as Samsung Flow software. Reading our previous article on GATT will help to understand the basic things we need to know to work with ESP32. We need to obtain the BLE hardware address, Service UUID and Characteristic UUID of the server. … [Read more...]
What is GATT (Generic Attribute Profile) of Bluetooth LE?
Our goal is to make our developer readers aware of GATT. Previously, we have discussed about Bluetooth, iBeacon and some theories on Internet of Things (IoT) such as Communication Standards for Wearable Computing, Influence of the Internet of Things (IoT) on Retail which eventually talked around the topic Bluetooth LE. "GATT Services are collections of characteristics and relationships to … [Read more...]
Send-Receive Message on PC Over Bluetooth From ESP32 Arduino
This guide intended to be for somewhat advanced users of Arduino and Windows 10. We are using ESP32 setup with Arduino IDE in this mentioned way. We need PuTTY as extra software. Unfortunately, ESP32 with Arduino libraries and Windows 10 is far from being perfect. The original target of this guide is to complete these steps : ESP32 will remain connected with the Windows 10 PC via USB for … [Read more...]
Explanation of the ESP32 Vulnerability Warnings
The ESP32 we commonly use in electronics development as an upgrade to the official Arduino boards was discovered in September to have four different WiFi vulnerabilities for the whole ESP SoC family (not exclusively ESP32). Espressif has already patched around most of the vulnerabilities. It is practical to know minimum details of the exploits at least to upgrade the firmware to the latest … [Read more...]
Connect ESP32 Arduino With a Samsung Smart Watch
We can create an ESP32 Web Server, connect & control LED from watch browser. Although it sounds too complicated work, it is easy. If we can connect an ESP32 Arduino with a Samsung Smart Watch and control it, then we can add various DIY peripherals with sensors such as DHT11/22. Obviously we can make it more complex by adding IoT services such as from IBM Watson IoT, like we can extend the AC … [Read more...]
- « Previous Page
- 1
- 2
- 3
- 4
- …
- 34
- Next Page »