Sending MQTT Data to Your Meshtastic Mesh with the ThinkNode M7
This tutorial shows you how to send MQTT data into a Meshtastic mesh using the Elecrow ThinkNode M7 as a gateway. You will learn how …
Communication
In this section, you’ll navigate through the various wired and wireless communication protocols available for Arduino and ESP32. Ethernet, SPI, Bluetooth, Wi-Fi, RFID, NFC and more are covered, providing detailed tutorials, use-case discussions, and advanced project ideas.
Long-Range Video with Wi-Fi HaLow and ThinkNode G4
In this tutorial we build a long-range wireless video camera with the ThinkNode G4 and the Wi-Fi HaLow Module from Elecrow. Wi-Fi HaLow sits in-between …
LILYGO T-Display P4 & T-Display P4 Keyboard
The T-Display P4 is a handheld development board. It runs on the Espressif ESP32-P4, a RISC-V application processor with a dual-core 360 MHz CPU. On …
The LILYGO T5 E-Paper S3 Pro
The LILYGO T5 E-Paper S3 Pro is a developer board that combines the ultra-low power properties of an e-ink display with the versatility of the …
Meshtastic IoT Grid with ThinkNode M1 & M2
How to build a simple IoT sensor grid with the ThinkNode M1 & M2 Meshtastic devices by Elecrow. The M1 and M2 are small LoRa …
LoRaWAN with Thinknode G1 Gateway
In this post I will show you how to send data using LoRaWAN with the Thinknode G1 Gateway. LoRa (Long Range) is a wireless method …
Send Environmental Data with LoRa
In this tutorial you will learn how to send environmental data with LoRa. LoRa allows you to transmit sensor data over long distances (several kilometers) …
Long range communication with LoRa SX1276 and ESP32
In this tutorial you will learn how to enable long range communication using the LoRa SX1276 module and the ESP32. For instance, if you want …
Control ESP32 from Telegram
Learn how to control an ESP32 from the Telegram app on your phone. With this code you can, for instance, switch on lights and request …
ESP32 send Telegram Message
In this article I will show you how to make an ESP32 send a Telegram Message to the Telegram app on your mobile phone or …
Find I2C and SPI default pins
In this tutorial you will learn how to find the default/hardware pins for the I2C and SPI interface for the microcontrollers supported by the Arduino …
Control Air-Conditioner via IR with ESP32 or ESP8266
In this article you will learn how to control an Air-Conditioner via IR with an ESP32 or ESP8266 microcontroller. Most, modern Air Conditioning units come …
How to build a universal, programmable IR remote
In this blog post, you will learn how to build a universal, programmable IR remote using Arduino. An infrared (IR) remote control is a common …
Control a Stepper Motor with an IR Remote
In this tutorial, you will learn how to control a stepper motor using an IR remote control. Stepper motors are widely used in various applications, …
How to Control a Servo with an IR Remote
In this tutorial, we will learn how to control a servo motor using an IR remote and an Arduino. Servo motors are widely used in …
Communication with Arduino and other MCUs – A complete overview
In the world of microcontrollers, communication is a fundamental aspect that allows devices to interact with each other and exchange data. Arduino, along with other …
