Maker and IOT Ideas

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SPI between two microprocessors

SPI communications between Maker Nano and STM32 “Blue Pill”. In Part 2 of my SPI series, I will show you an example of SPI between to microprocessors

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What exactly is SPI - Maker and IoT Ideas

The Serial Peripheral Interface is a synchronous serial communication interface for short-distance communication, it is typically used in embedded systems.

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A quick introduction on the SSD1306 128x32 I2C OLED Screen

https://www.makeriot2020.com/index.php/2020/09/14/the-oled-display/

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Part 3 of my I2C series

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I2C between 2 devices - Maker and IoT Ideas

I2C between Maker Nano ( Arduino Nano compatible) and Kid-Bright 32 (ESP32). Showing how I2C works in a practical situation.

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What is I2C ?

 Many of us use it quite often, but quite a few people do not really know how it works or what exactly it is. In this post, I will try to show you the basics of the very versatile communications bus.  I will also cover the protocol, how it works at hardware level (in a very basic way as to not be overly complicated) If you want to learn more, please go to my website  -> HERE https://www.makeriot2020.com/index.php/2020/09/07/what-exactly-is-i2c#introduction Thank you

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Arduino Web Server - Part 2

In this post, I will show you how to use your Web Server to serve an HTML file stored on an SD Card.

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Ajax and Javascript makes a very responsive Arduino Iot Webserver. This is part one of a series. You can learn more on out website https://www.makeriot2020.com/index.php/2020/09/01/arduino-web-server-using-ajax-part-1/ 

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Voice Activated IoT Relay Controller

Voice-Activated IoT Relay Controller Using Google Assistant, IFTTT and Adafruit IO.

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Extending GPIO with PCF8574

Part 2 of the Extending GPIO on Arduino/ESP32/STM32 Series. This article will cover using the PCF8574 I2C IO Extender Module.

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Extending Outputs on Arduino

Extending the number of outputs on your Arduino/ESP32/STM32 using a 74HC595 SIPO Shift Register

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Useful Circuits using NAND Gates - Maker and IoT Ideas

Two useful NAND gate circuits that you can build at home, without needing a microcontroller to make them work

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Using MQTT with IoT Devices

MQTT is a lightweight, bandwidth-efficient protocol that is ideal to use on low resource IoT and another microprocessor devices