Tag Archives: particle

Particle sensor with LoRa

Mare published a new build:

Particle sensors could be cheap and easy to use. Disadvantage of lowest cost PM sensors is lack of “calibration”. The best method to measure particle content dispensed in the air is to collect the air sample and analyse it off-line in the laboratory with proper equipment (not cheap at all). Optical particle counting sensors use the light scattering method to detect and count particles in the operating concentration range in a given environment. A laser light source illuminates a particle as it is pulled through the detection chamber. As particles pass through the laser beam, the light source becomes obscured and is recorded on the photo or light detector. The light is then analyzed and converted to an electrical signal providing particulate size and quantity to predict concentrations in real time.

Particle sensor with LoRa – [Link]

Particle E-Series Modules – LTE Connectivity designed for IoT

Building an Internet of Things based system has always been an exciting art that usually comes with one major challenge to overcome – Connectivity. A smart system or an even intelligent system that collects data without having any network capability can’t be called an IoT system and it’s that device connectivity that gives it the IoT factor. Cellular connectivity has been one of the go-to connectivity for IoT system, and 2G networks have been the umbrella for this connectivity option mostly because it is virtually available everywhere.

Particle IoT 4G ESeries LTE

Despite the success that 2G & 3G networks have brought to the adoption of Internet of Things application, they are also slowly being phased out for the more robust, better 4G networks. Countries like Australia have stopped a nationwide use of 2G networks and some other countries already making plans to do the same. Particle, a developer of networking hardware and software for connected devices that has released several IoT focused boards in the past, like the Particle Photon and Particle Cellular Modules, has recently launched new LTE modules for 4G networks. These new devices aim those people whose devices depend on 2G and 3G networks and comes with a cloud and SIM support.

The LTE modules are part of Particle’s existing E Series suite, which comes bundled with the Particle Device Cloud, Device OS, and Particle’s collection of developer tools. The E Series modules are powered by an STM32F205 ARM Cortex M3 microcontroller running at 120MHz with features a 1MB Flash, 256KB RAM, and a wealth of GPIO. The modules integrate the industry-leading u-blox Sara cellular modems that provide support for 2G, 3G, and LTE M1/NB1 radios.

The LTE E Series modules are build on their famous Electron cellular prototyping kit, and they all come with standard wireless and cellular certifications – PTCRB Certified, FCC/CE/IC/GCF Certified, and RoHS Compliant. Also, they offer an extended operating temperature range from -20 to 85C for hostile environments. The modules come in 3 family types as listed below:

  • Electron development kit
  • E Series evaluation board
  • E Series modules

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9 Tiny Microcontroller Board Options to Complement Your Arduino Uno

The venerable Arduino Uno is the de facto standard in microcontroller development boards, but there are also other boards that can be hidden in a project to make it “smart.” Some even provide extra features like built-in Bluetooth or WiFi capabilities. While the Uno will certainly be used for years to come, due to its familiar form factor and available accessories, here are nine other options in even smaller form factors to hide in your project.

Arduino Nano

If you like the Arduino Uno, but just want it smaller, then the Arduino Nano provides very similar specs. While the Uno board measures 68.6 x 53.4mm at 25g, the Nano measures only 18 x 45mm at 7g. The Nano gets its size down by eliminating the DC power jack and utilizing Mini-B USB. (more…)

Particle Mesh – A Mesh-Enabled IoT Development Kits.

Particle, which has been known for its collection of  IoT focused development boards, and its Internet of Things (IoT) platform (Particle Cloud) has launched a new set of mesh network-enabled IoT development kits called Particle Mesh. Particle Mesh is expected to provide developers more insight into implementing mesh networking technology. They help to collect sensor data, exchange local messages, and share their connection to the cloud.

Particle Mesh Hardware
Particle Mesh Hardware

Particle Mesh features a new family of mesh-ready devices with Wi-Fi, BLE and LTE connectivity and also integrated with the Particle device cloud. Particle mesh consists of three main boards: The Argon, The Boron, and the Xenon. Each of these Particle Mesh boards has at least one form of outside connectivity option (LTE/3G/2G, Wi-Fi or Bluetooth) and an onboard mesh network hardware to facilitate setting up a mesh network for local communications between sensors and other particle mesh boards. All three devices are built around the Nordic nRF52840 MCU + BLE + mesh radio and follow the Adafruit Feather specification making it compatible with most Adafruit FeatherWing hardware accessories. (more…)

Paperino, The ePaper Display Shield

ePaper displays  (EPDs) are becoming a trend in application, just like the display used in Amazon Kindle,  for their low power consumption due to the  to the underlying ‘bistable’ display technology. These displays can continue to show information without any power at all. It is only required while updating the display with new information, otherwise there won’t be any power consumption.

Providing such revolutionary displays to your applications will be a professional approach. For this, a new crowdfunding campaign is providing Paperino, an easy-to-use, micro ePaper shield for the Particle & Arduino community. Paperino simplifies driving ePaper displays with clean, simple, and short script examples.

Thanks to the plug-and-play shield for particle family, Paperino can be used with the following boards: Photon, Electron, or Bluz without manual wiring. It can also be wired easily to be connected with Arduino and other compatible boards.

Paperino Features

Glass-free Display

Paperino is lightweight and thinner than other ePaper products because it uses a glass-free ePaper display from Plastic Logic. It weighs 1.2 grams and is only 0.5 mm thick.

Supports Four Gray Levels

Unlike many other ePaper products out there, Paperino can support four gray levels instead of two (black and white).

Fast, Partial Updates

You don’t have to wait for slow, full screen updates to load. With Paperino, you can quickly update only parts of the screen.

Accelerometer

The integrated accelerometer lets you interact with your Paperino in all sorts of ways, including tap sensing. Tap sensing capability can trigger screen updates or wake up your microcontroller.

Paperino Specifications

The Paperino breakout board can be used for manually wiring your favourite, Arduino-compatible microcontroller with 3.3 V and >4kb of free RAM.

  • Resolution: 148 x 70 px
  • Pixel density: 150 ppi
  • Grey levels: 4
  • Weight: 1.2 g
  • Thickness: 500 µm
  • Power consumption: 4.5 mA (mean current for typical image update)
  • Operating conditions: 0°C .. 40°C
  • Storage conditions: -25°C .. 50°C

You can pre-order your own Paperino for $20 and with a driver board for $30. The crowdfunding campaign still has 16 days to go, and you can learn more details by checking it out.