POE or Power Over Ethernet is a technology that lets electrical power to be transmitted along with data over standard Ethernet cables. This eliminates the need for separate power cables and power supplies for networked devices, making it a convenient
Wiring the Texas Instruments ISO1540 / ISO1541 Low-Power Bidirectional i2C Interface Isolator
The Texas Instruments ISO1540 and ISO1541 is a high-speed isolated digital output interface IC, designed to provide high-speed, isolated digital outputs for control systems. Like the ISO1540, it is designed to provide electrical isolation, making it suitable for use in
How to ESP32 Encrypted Data Transmission / Send & Receive Data with ESP-NOW Protocol
In ESP32 there is a feature that you can encrypt data or messages using ESP-NOW technology developed by Espressif System. With this feature, we now transmit encrypted data from one ESP32 to another This communication protocol is running in low-power,
Build your Own Thermometer with ThingSpeak
Another illustration that demonstrate how to wire the ESP32-WROOM set as client talk to ThingSpeak API. As you can see the diagram below, we will be going to build a non-contact temperature sensor using MLX90614. Unlike DHTXX, LMXX, HDCXX, HTUXX,
ESP32-S CAM in Face Detection and Recognition with ESP-IDF / ESP-WHO Library
Here is another 14CORE guide working with ESP32-S CAM that runs with ESP-WHO Library. ESP-WHO is a face detection and recognition customize code for ESPRESSIF System Chip and coded and optimize that suits for the ESP32 chip with the help
Point to Point / Server & Client Setup on ESP8266 & MCP9808 Temp Sensor
ESP8266 is capable to transmit and receive data via WiFi. ESP8266 can be configured or set as a basic server and access point. On this guide, we will be going to configure the ESP8266 to talk to each other without
HELTEC WiFi32 / WiFi 8 integration with Arduino IDE
HELTEC WIFI 32 module is an ultra-performance that is high ultra-low-power consumption Wi-Fi and Bluetooth wireless platform based on ESPRESSIF ESP32 chipset. ESP-32S dual-core 448 KByte ROM | 520 KByte SRAM | 16 KByte SRAM in RTC | 802.11 b/g/n/e/I
Wiring the WIZNET W5100/W5500 as Network Time Protocol Client with Microcontroller
NTP (Network Time Protocol) is a networking protocol for clock synchronization between computer over packet switches, variable-latency data networks. NTP is one of the oldest IP in current used, this technology was designed by David Mills at the University of
Siemens IOT2000 / IOT2020 / IOT2040 Arduino IDE Integration
The SIMATIC IOT 2000 / 2020 / 2040 family is an open platform for collecting, processing and moving data in the production atmosphere. Ideally suitable as data network gateway between the Intranet, cloud or IT level and productions. This device
Sending Queues with FreeRTOS on ESP32 / ESP32S
RTOS (Real Time Operating System) is a computer program that supports basic functions, services or applications that runs on real time environment. RTOS is not a big data size of operating system and it is not design to runs on
Pushing Topics to MQTT Protocol with ESP32 / ESP8266
MQTT (Message Queuing Telemetry Transport) Protocol is a M2M (Machine to Machine) lightweight messaging protocol widely used in IOT (Internet of Things) that provides a resource constrained network clients. Almost IOT cloud platform support MQTT protocol to send and receive
Reducing Power Consumption on ESP8266 / ES32
Here is the approaches to minimizing the power consumption of your ESP8266/ESP32 by coding to extend the battery life of your peripheral devices. The key aspect of this mode is that it requires a little overhead to enter and exit