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The 1st Arduino Playgroung in Greece - Open Source Hardware

Eachine E520S GPS WIFI FPV Drone from Banggood

19/9/2020

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Description

Features

• Brand Name: Eachine
• Item NO.: E520S
• Frequency: 2.4G
• Channel: 4CH
• G-yro: 6 axis
• Flying Weight: 248g (with Battery)
• Quadcopter Battery: 7.4V 1200mAh Lipo (Included)
• Flying Time: 14-16mins
• Charging Time: 120-150mins
• R/C Distance: 200-300m
• Camera Optional: 720P / 2.4G WiFi 1080P / 5G WiFi 1080P / 2.4G WiFi 4K HD / 5G WiFi 4K
• Supported SD Cards: Supporting Micro SD with capacity up to 128 GB
• WiFi Distance: 2.4G WiFi: 50-70m 5G WiFi: 150-250m

  • With foldable arm, small size, easy to carry.
  • GPS positioning mode provides a more accurate flight.
  • Follow me: the aircraft will fix the controlling cellphone and follow the operator whichever direction he moves.
  • Altitude hold mode function provides stable flight.
  • Surround action will enable the aircraft flying in a circle, providing cooler shooting perspective.
  • Waypoint flight mode, just draw a route on the screen, the copter as the give path.
  • Headless Mode,no need to adjust the position of aircraft before flying .
  • With One key to return function makes it easily to find the way home.
  • One Key Takeoff /Landing. One press automatically taking off or landing, the drone will take off or go back to the position where it took off.
Buy it from Banggood
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Video in Greek Language

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PM1.0 PM2.5 PM10 Air Quality Dust Sensor Module

1/9/2020

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Specifications:

Features:

  • Material: Acrylic Case + Electronic Components
  • Size: Approx. 8.5x6.5x3.7cm/ 3.35x2.56x1.46"
  • Processor: For ARM 32 Bit Chips
  • Font color: Multi Colors
  • Screen: 2.8" TFT
  • Resolution Ratio: 320x240
  • Power Supply: DC 5V
  • Operation Current: 1-2A
  • Temperature Measure Range: -20 to 60 ℃
  • Accuracy: ±0.1 ℃
  • Language Version: English Version.
  • Acrylic clear case shell, high transmittance to be looked through
  • Built in for ARM 32 bit processor, accurate detection & system fluency
  • High sensitivity sensor ensures the high accuracy in data collections
  • Semi-closing design performs excellent in heat radiation, long-life use
  • Lightweight, easy to use and be a straightaway in data interpretation
  • Suitable for home/office and car or part scope on air quality detection
Buy it from Banggood
Working Principle:
Multi-angle Laser Scattering Detection, laser irradiation in the suspended particulate matter in the air and generate scattering. Scattered light will be collected in a specified angle at the same time. According to the scattering intensity, time-varying curves can be obtained through the sensor. Being processed by the microcomputer processor, equivalent particle diameters and the number of suspended particulate matter with different sizes in per unit volume can be obtained.
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 What are PM10, PM2.5 and PM1.0?
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In addition to gaseous pollution, the surrounding air may also be polluted by particles. These particles (suspension, liquid or solid) with different compositions and sizes are sometimes called "aerosols". They are usually classified as "suspended matter" and are often referred to as PM (abbreviation of "Particulate Matter" in English).

The floating fabric is generally classified according to "aerodynamic diameter". The aerodynamic diameter of a dust particle is the diameter of a spherical particle, and the diameter of the spherical particle shows the same behavior as the dust particle in ambient air (not necessarily having a spherical shape). In the context of air quality issues, particulate matter is particularly important.

Fine particles such as PM10, PM2.5, and PM1 are defined as parts with aerodynamic diameters of less than 10, 2.5, and 1 µm (information: 1 µm = parts per million) meters or thousandths of a millimeter ). For comparison, the average diameter of human hair is 50-70 µm.

What is the difference between PM10, PM2.5 and PM1.0?

PM1: PM1 is much finer than PM2.5. The main source of PM1 is mainly daily power generation, industrial production, indoor environmental pollution, etc., which is difficult to judge by the naked eye. PM1 mainly comes from the burning of fossil fuels, such as coal and VOCs.

PM2.5: PM2.5 has a small particle size, large area, and strong activity. It is easy to attach toxic and hazardous substances (for example, heavy metals, microorganisms, etc.), and it has a long residence time in the atmosphere and a long transportation distance. Human health and atmospheric environmental quality have a greater impact. PM2.5 is mainly smog and dust from roads in daily life.

PM10: PM10, also known as respirable particulate matter, refers to particulate matter with an aerodynamic equivalent diameter of ≤10 microns. Usually comes from motor vehicles driving on unpaved asphalt and cement roads, crushing and grinding of materials, and dust raised by the wind.
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Xiaomi MiTu WiFi FPV RC Drone from Banggood

25/7/2020

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Description:

Features:

  • Brand: Xiaomi
  • Item Name: MiTu RC Quadcopter
  • Battery: 920mAh
  • Flying Time: About 10mins
  • Charging Time: About 60mins
  • Max Remote Distance: 50m
  • Camera: HD 720P
  • Image Resolution: 1600 * 1200
  • Video Resolution: 1280 * 720
  • Quadcopter Size: 91 X 91 X 38mm
  • Quadcopter Weight: 88g
  • Controller: APP
  • FPV Signal: WIFI
  • APP System : IOS & Android
  • Click here to download the App
  • * 720P HD Camera
  • Built in 720P camera are tuned amazingly to capture pictures and videos from the sky.
  •  * Precision Hover
  •  The new indoor altitude hold feature enables the drone to fly steadily and smoothly in the indoor environment
  •  * 360 Degree Air Tumbling
  •  You can get 360-degrees Flip, continuous roll for perfect action and wonderful performance.
  •  * Multi-machine Infrared Battle
  •  The MITU RC Drone has multi-machine infrared battle fuction, enjoy yourself with your friend.
  •  * Headless Mode
  • With Headless Mode,no need to adjust the position of aircraft before flying .
Buy it from Banggood
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LILYGO® TTGO T-Watch-2020

3/6/2020

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Introdution

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Buy it from Banggood
Last year, Lilygo introduced TTGO T-Watch smartwatch that, due to support for expansion boards, was relatively thick, but at least documentation and Arduino code samples can be found on Github. The company has now launched a slicker version with Lilygo TTGO T-Watch-2000.
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Specifications

  • SoC – Espressif ESP32 dual-core wireless processor with 520KB SRAM
  • System Memory – 8MB PSRAM
  • Storage – 16MB QSPI flash
  • Display – 1.54-inch LCD capacitive touch screen
  • Audio – Class-D amplifier, buzzer
  • Connectivity – 802.11b/g/n WiFi 4 and Bluetooth 5.1 via ESP32
  • Sensors – BMA423 three-axis accelerometer with built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition.
  • Misc – Power button (round),  PCF8563 RTC clock, vibration motor
  • Programming – Via Micro USB port (CP2104 USB to TTL chip)
  • Battery
    • 3.7V Lithium battery
    • Charging – 5V/1A via Micro USB port; AXP202 PMIC
  • Dimensions – TBD
  • Weight – 58.5 grams
  • Temperature Range – -40°C ~ +85°C (TBC…)
More Information
  • Lilygo
  • Github
  • Banggood Store


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Buy it from Banggood
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Easythreed®  Mini 3D Printer - from Banggood

27/5/2020

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Greek Unboxing Video

FLASH SALE -- $144
Description:
Easythreed NANO 3D printer is a consumer-grade 3D printer. It is fully assembled (so no assembly is required). Also, it comes with its slicing software (Easyware) which was specifically madefor this model and has a unique auto slice function based on your time and quality preferences. 

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Features:
  •  Very light, only 1KG net weight. Easy to carry and go.
  • Orange color ABS structure, more shiny colors. If you like more beautiful, you can consider it.
  • Acrylic windows included.It isolates the slight odor of the filament when printed, and is quieter and dust proof.
  • One key printing, press the print button gently after TF card is inserted, NANO prints automatically after warm-up.
  • 90*110*110mm mini printing size. Suit for printing desktop model. This makes the printer more likable.
  • Full assembled machine 3D printer, simple operation and convenient.
  • Suitable for household education use or DIY amateurs, and also suitable for students 10 years and older.
  • For those wanting to use a more advanced software to customize printer behavior and slice models we would recommend Cura.
  • Certificate: CE,FCC,RoHs


FLASH SALE FROM EU WAREHOUSE $144
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Package Included:
  • 1 x Orange NANO 3D Printer
  • 1 x Power Cable
  • 1 x USB Cable
  • 1 x TF Card
  • 1 x Card Reader
  • 1 x User Manual
  • 1 x Scraper
  • 1 x Cross Screwdriver
  • 1 x PLA Filament
  • 1 x Filament Holder Set
Included: Software Accessories
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Printer Specifications can be found in product page at Banggood.com, click here.
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