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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...]

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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...]

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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...]

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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...]

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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...]

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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...]

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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...]

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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...]

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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...]

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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...]

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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...]