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?
Arduino
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
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
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
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
Multiple I2C Devices on the same Bus, I2C Part 3
Today I will continue my series on I2C by showing you how to use multiple devices on the I2C bus. This will be an extremely… Read More »Multiple I2C Devices on the same Bus, I2C Part 3
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)