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...]
Connect Galaxy Watch to Tizen Studio & Galaxy Watch Designer
First, we should learn how to connect Samsung Galaxy Watch with Tizen Studio & Galaxy Watch Designer. Later we can develop & run our apps. The documentations written by Samsung is not just bad but also not just easy to understand and do. At worst, the software and firmware have bugs. After reading this guide, your watch development projects will become smooth like working with Arduino … [Read more...]
How to Create Watch Face Using Galaxy Watch Designer
The unique feature of the smartwatches is the capability to use different watch faces. We are using Samsung Galaxy Watch LTE for testing our designing and development. There are mainly three tools to convert your art created on vector tools like Adobe Illustrator and general-purpose tool Adobe Photoshop. Facer like two third party platform has paid tools to do the job. However, Samsung Galaxy … [Read more...]
Create Own Watch Face For Samsung SmartWatch
Only the watch face factor forced us to purchase almost the same kind of traditional watches. But creativity no longer is chocked with the advent of open-source software running on a smartwatch. Smartwatches do have limitations at present but the watches running some open-source software make your development easier. Samsung is one of the pioneers of Tizen OS. They have a development platform for … [Read more...]
Samsung A50s : Hidden & Less Known Features
Previously we published a review on Samsung A50s. A50s Has a Good Number of Hidden Features Among the Available Smartphones. I am using a Samsung S10 and this A50s (as an upgrade to J7 Max) among the latest sets. S10 costs so higher for official support of VR, DEX, the display, wireless charging, more features of USB-C, 8GB RAM and so on. Many difference exists between S10 and A50s. But I can say … [Read more...]
Latest Smartwatch Technologies : Part II
In the first part of the series on the latest smartwatch technologies, we divided the smartphones in to three categories - (i) cheap (ii) mainstream (companion of a smartphone) and (iii) luxurious watches. That part mostly discussed the hardware features touching the presently available high-end chipsets. In this second part of the series, we will focus on the luxurious smartwatches. For obvious … [Read more...]
Latest Smartwatch Technologies : Part I
Smartwatches are a type of wearable tightly related to Internet of Things. The present form of the smartwatch is hardly 6 years old with some of the smartphone-like abilities and some special ability. The most important part of a smartphone is its display. Most of the future buyers of smartphones have some common questions. Mechanical watches and the hybrid luxurious watches have the resell value … [Read more...]
Smartphones Which Support 5G (Oct 2019)
In our earlier articles we have discussed about 5G. There is a practical need to know whether 5G network going to be available in the next year. According to the official news, 5G shall be available to users at affordable prices starting from 2021. So, we can comfortably say that most of the users do not need a 5G set in the next year. It does mean - we should avoid purchasing present top-model 4G … [Read more...]
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