
Comparison of adhesive products for 3D printing: Personal experiences
In 3D printing, proper adhesion of the first layer is crucial for a successful print. However, each material requires a slightly different approach. The build plate—its type and cleanliness—has a significant impact on the model’s adhesion to the plate, but sometimes it’s necessary to use a spray to improve adhesion and keep the print securely on the plate.
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ESP32-POE – WiFi/BLE/Ethernet development board by Olimex
The Olimex company released a new development board called ESP32-PoE. It’s other development board with popular WiFi/BLE IC ESP32. Olimex offers more development boards with ESP32, ESP32-PRO and Olimex ESP32-EVB.…

Build IoT Gateway for TTN with OrangePi/RaspberryPi and mPCIe concentrator
IoT is really the most popular theme over the last few years. We want connect billions devices to IoT network and control/supervise devices over the network. Here is other step-by-step…

QR scanner with ESP32
Popular WiFi and Bluetooth IC called ESP32 you can use in a lot of projects. For example like this. ESP32 development board with camera interface and through this connector you…

Updated: STM32duino III. – How to use Serial (USART)
The STM32duino library which supports a few microcontrollers from STM32 family for Arduino IDE and programming by Wiring was updated. Based on this update were also updated USART example codes.…

VOC Sensor with 65uA Consumption Only
SGPC3 is designed to measure the volatile organic compounds (VOC) concentration in the indoor environment. As is usual with Sensirion products, the sensor is calibrated and the signal processing is…

STM32F103 (Bluepill) and LoRa with RFM95 module
The news shows you the easy project which is used for Internet of Things. The project is based on STM32F103 called Bluepill (and also Minimum System Development for STM32) and…

NanoPi NEO4: pre-release specification and pictures
NanoPi NEO4 isn’t officially released but we already have the pre-release specification and pictures of that. What can we expect? Processor RK3399 (Dual-Core Cortex-A72 @2.0GHz, Quad-Core Cortex-A53 @1.5GHz, Mali-T864 GPU)…

Secure data transfer with dual band WiFi module xPico®200
If you need highly reliable and secure data transfer over WiFi, xPico Wifi240/250 is the right solution for you. xPicoWiFi240/250 from Lantronix provides seamless and secure Ethernet, Wi-Fi and/or Bluetooth…

How to easily mount an enclosure on a pole?
Canadian manufacturer Hammond offers a complete solution. With the Pole Mount Kit PMB it goes fast, reliably and securely to any pole. Measuring, signalisation, control ? these are the typical…

UPDATED: BigClown on Linux Mint (Toolchain installation and uploading of code)
Updated article about popular IoT platform called BigClown. Installation of BigClown Toolchain and uploading of code to Core module on Linux Mint. Whole article is available on https://time4ee.com/articles.php?article_id=59