LoRa – Part 2
So many people asked me which Lora Module I use for my projects. In this part of the series, I will show you, as well… Read More »LoRa – Part 2
ESP32
What is LoRa?
Introduction When designing IoT solutions, we all encounter the problem of connecting our device(s) to each other, either directly, or through the internet. In Urban… Read More »What is LoRa?
MCP23017 with Adafruit Library
In a previous post, I have shown you how to use the MCP23017 16 Port I2C I/O Port extender with the standard Wire library, as… Read More »MCP23017 with Adafruit Library
ESP32/ESP8266 WiFi Config and OTA on Demand
While working on a recent project, using a custom version of the ESP32, I had a particular need to be able to update the firmware… Read More »ESP32/ESP8266 WiFi Config and OTA on Demand
Using the MCP23017 to increase your GPIO’s
Today I will show you another useful IO Expander chip, The MCP23017. This chip, although similar to the PCF8475, which I have already covered in… Read More »Using the MCP23017 to increase your GPIO’s
Using I2C with a 4×4 Matrix Keypad
Using a matrix keypad is a very easy way to add multiple control buttons to a project, be it to enter a password, or to… Read More »Using I2C with a 4×4 Matrix Keypad
ESP8266 and ESP32 AT Commands
In this tutorial, I’ll show you some of the important and frequently used ESP8266 AT Commands or AT Instruction Set. ESP8266 WiFi Module offers… Read More »ESP8266 and ESP32 AT Commands
What is SPI? Serial Peripheral Interface – Part 1
Introduction The Serial Peripheral Interface is a synchronous serial communication interface for short-distance communication, it is typically used in embedded systems. The interface was developed… Read More »What is SPI? Serial Peripheral Interface – Part 1
The OLED Display
Introduction Adding a display to any project can instantly increase its visual appeal, as well as make the project easier to control. Displays available to… Read More »The OLED Display
I2C between Maker Nano and Kid-Bright32 (Esp32)
In our last post, we started looking at the workings of the I2C protocol. In case you missed that, you can read about that here.… Read More »I2C between Maker Nano and Kid-Bright32 (Esp32)