Multiple LoRa Device Communication
In this part of my LoRa Series ( Part 3 ) I will look at some basic code for the Heltec LoRa 32 V2 Module.… Read More »Multiple LoRa Device Communication
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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
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
A Business Card with a Purpose
I recently got some inspiration from the JLCPCB User Group on Facebook. Catherine showed off her PCB style business card, and I just had to… Read More »A Business Card with a Purpose
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
SPI between Maker Nano ( Arduino Nano Clone ) and STM32 “Blue Pill” – Part 2
Sometimes it is necessary to send data between two microprocessors.The SPI bus is a very fast serial data-bus that is normally used to interface with… Read More »SPI between Maker Nano ( Arduino Nano Clone ) and STM32 “Blue Pill” – Part 2