Microcontroller Blog https://www.best-microcontroller-projects.com/microcontroller-blog.html The Microcontroller Blog keeps you up-to-date with all additions and changes to the best-microcontroller-projects.com Web site. Subscribe here (no need for email). en-us microcontroller blog Thu, 4 Dec 2025 05:52:42 -0500 Thu, 4 Dec 2025 05:52:42 -0500 best-microcontroller-projects.com Arduino Float to String: Find out how to do it Easily! https://www.best-microcontroller-projects.com/arduino-float-to-string.htmlffcae9a4428c0fe4017d92ebf1b687eeArduino Float to String: Is there a simple function that does this for you? What is the one thing you must do to ensure your program is reliable?: Find out here.
Thu, 4 Dec 2025 05:52:14 -0500
Arduino light sensor: A beginner's tutorial on DIY light sensing https://www.best-microcontroller-projects.com/arduino-light-sensor.html3a65dcb7b186c18941951a0bccddfa88A beginners Arduino light sensor tutorial showing you how to use an LDR (Light Dependent Resitor) for live light sensing on the serial monitor
Sun, 19 Jan 2025 03:31:34 -0500
Arduino Capacitive Sensor: Single Pin Touch Sensing https://www.best-microcontroller-projects.com/arduino-capacitive-sensor.html01de03d0e258758ecfb588676792970bArduino Capacitive Sensor: Using Internal Hardware with no extra components, for touch sensing. Whaaaatttt?... How is this Magic performed?
Sun, 5 Jan 2025 04:27:42 -0500
Privacy Policy https://www.best-microcontroller-projects.com/privacy-policy.htmlff1bf1677346f8c0dd19dd2a1aa094e3The privacy policy for this site. Sat, 4 Jan 2025 05:23:46 -0500 Arduino ADC: Everything you Must Know about the Built-In ADC https://www.best-microcontroller-projects.com/arduino-adc.htmlc155d0e4e2289bd5d82ed74601073e95How does the Arduino ADC work? Should you use 1023 or 1024 in your calculation? Find out the sample rate and how to use the voltage reference.
Wed, 1 Jan 2025 16:20:52 -0500
Arduino ISP: Recover Dead Arduinos using a Free ISP. https://www.best-microcontroller-projects.com/arduino-isp.htmlbf8cbcea17e0b44bc7825471a2799459Arduino ISP: Easily burn the bootloader back into an Arduino with an ISP programmer. Don't buy an ISP programmer; use another Arduino as a Free ISP.
Tue, 31 Dec 2024 07:17:14 -0500
Arduino Scrolling Display: Easy code for Your scrolling Graph https://www.best-microcontroller-projects.com/arduino-scrolling-display.htmla301a975a967d915ca4e610d4171356fUnlock the secrets of Arduino scrolling displays! This beginner-friendly guide shows you how to create real-time, dynamic graphics using an SSD1306 OLED, perfect for tracking sensor data and building interactive projects.
Sun, 22 Dec 2024 07:00:19 -0500
Arduino Uno specs: Everything you need to know about the Uno. https://www.best-microcontroller-projects.com/arduino-uno-specs.htmlbda8a2571f8e822b824b6f8415328f5eArduino Uno Specs: Easily understand your Arduino Uno. Learn about all internal modules and use each of them the right way. Plus FIVE unused features!
Wed, 11 Dec 2024 17:50:27 -0500
Arduino Nano PWM pins https://www.best-microcontroller-projects.com/arduino-nano-pwm-pins.html387b43592a56cd43ee11cbc6c100d121Arduino Nano PWM pins: Eight things you must know about PWM pins including how they affect timers.
Thu, 7 Nov 2024 10:26:40 -0500
Learn How to Use the DHT22 with an Arduino; Full code examples included https://www.best-microcontroller-projects.com/dht22.html032191dc4cc281afce0f3ba0312795a7How to get accurate DHT22 digital humidity sensor readings with an Arduino. Did you know it also measures temperature as Well? Find out why, in this page...
Thu, 24 Oct 2024 12:08:03 -0400
How to Use a PIR Sensor for Motion sensing using Arduino https://www.best-microcontroller-projects.com/how-to-use-a-pir-sensor-with-an-arduino.htmld5d8f2f7223987cc6c8f27098e5a5593A PIR sensor lets your Arduino sense movement without contact. This tutorial covers PIR sensor basics, connecting one to an Arduino board and coding a motion detector.
Tue, 3 Sep 2024 16:53:03 -0400
Arduino Hall Effect Sensor Tutorial: Detect Magnets Easily https://www.best-microcontroller-projects.com/arduino-hall-effect-sensor.html9ea07c0cd04462127269066b58401cb1Arduino Hall Effect Sensor: Add magnetic sensing superpowers to your Arduino projects with an easy-to-use hall effect sensor. With full code and layout...
Tue, 3 Sep 2024 10:35:57 -0400
INA219: Simple Arduino current measurement up to 3.2A https://www.best-microcontroller-projects.com/ina219.htmlcf80fb811d418fd0e10885e10c8e34c8INA219: How your Arduino can measure 3.2A at 100uA resolution, measuring the voltage and power consumption at the same time, using an I2C chip.
Sat, 31 Aug 2024 09:42:42 -0400
TP4056: Your Essential guide to the LiPo Battery Charger IC https://www.best-microcontroller-projects.com/tp4056.html480023671264dc012d869ea790753b49Learn how to use the TP4056 properly. There's a right way, and a wrong way for safe charging of Lithium Ion batteries with this chip.
Tue, 13 Aug 2024 03:53:45 -0400
Arduino Humidity Sensor: A Beginners Tutorial on the DHT11 sensor https://www.best-microcontroller-projects.com/arduino-humidity-sensor.html0cec7cd4a38d12044c89369f3673b28fGet started with an Arduino humidity sensor using the DHT11, which reports both humidity and temperature. Complete guide with full code for using this sensor
Wed, 26 Jun 2024 17:54:47 -0400
Arduino delay function: Why you need it and How to Use it https://www.best-microcontroller-projects.com/arduino-delay-function-guide-with-examples.html4d5f732be45cd963175d2d49b07b7ef1The Arduino delay function is an Extremely Useful function which you can use to get small delays. However, sometimes it's not the right function to use � there is another!
Sun, 2 Jun 2024 09:44:53 -0400
Code an RGB LED Like a Pro: An Arduino Programming Tutorial https://www.best-microcontroller-projects.com/example-code-for-an-rgb-led-connected-to-an-arduino.html42e5e3f4febdfe09065475320d2fde0aControl the colors of an RGB LED through Arduino code. This beginners guide covers connections and provides example sketches for interesting LED control...
Thu, 23 May 2024 12:54:20 -0400
How to create a 3 component Arduino IR proximity sensor without KY-032 https://www.best-microcontroller-projects.com/how-to-figure-out-distance-using-an-ir-proximity-sensor-on-an-arduino.html40fa6bc29d5f394d2da1065642a479eaTired of wasting time trying to get the notoriously bad KY-032 IR sensor module to work reliably? How to use a 3 component substitute that actually works!
Sat, 18 May 2024 03:34:15 -0400
Secrets of Arduino millis: How it works and how to use it. https://www.best-microcontroller-projects.com/arduino-millis.html83d81240b0655205aec2e7a2fbcbe32cHow to use Arduino millis to make Delays, One-Shots and simple Schedulers plus analysis of millis code; Plus - Find out why it Lies (a bit)! Wed, 8 May 2024 17:23:36 -0400 ESP 01 Programming: Complete Setup, Code, and Debug https://www.best-microcontroller-projects.com/esp-01-programming.html2ba0ba578d954e4b67ff5d1207ee1dd6Learn ESP 01 programming with the Small but Powerful ESP 01 WiFi module, using an Arduino as the serial programmer, Including Examples and Debug help
Mon, 6 May 2024 12:42:40 -0400
PCF8574: Is this the Simplest I/O Expander Ever? https://www.best-microcontroller-projects.com/pcf8574.htmld800d20e30d9db106ae9065c6136f392PCF8574: How does this device work with no Internal Control Registers? Yet it allows a processor to Read, or Write each pin very easily. Find out its Secret Here.
Mon, 6 May 2024 12:18:43 -0400
Arduino For Loop - How you can use it the Right Way. https://www.best-microcontroller-projects.com/arduino-for-loop.html3462a6a143eab440b2510a90f6ba2115Arduino For Loop: Easily repeat blocks of code saving processor memory and simplifying access to array data. How to Easily Avoid off by one errors.
Sat, 4 May 2024 12:22:14 -0400
Arduino IR Remote: A Beginners Project for Infrared Control https://www.best-microcontroller-projects.com/arduino-ir-remote.html0113f15174962a85a898086ad3c4f5d8Introducing Arduino IR remote control [Beginners Guide]. How to build a circuit to receive and transmit IR codes through a hands-on project [full code included].
Wed, 1 May 2024 11:17:37 -0400
Adding Arduino RFID reader Scanning to Your Projects https://www.best-microcontroller-projects.com/arduino-rfid-reader.htmld9b09f307df909232fe2b988691b75bcThis beginners tutorial gives you a complete step-by-step guide for interfacing an Arduino Uno with the MFRC522 RFID reader module. There is one problem with most circuits out there...
Mon, 29 Apr 2024 12:40:22 -0400
Logic Level Converter: Easily Convert between 5V and 3V https://www.best-microcontroller-projects.com/logic-level-converter.htmlc06516ee79eddcd9a412d9c5a62b5d34Logic Level Converter: How to create a bi-directional interface that automatically translates voltage levels using a subtle MOSFET property...
Fri, 19 Apr 2024 09:35:30 -0400
Arduino Ultrasonic Sensors: A Beginner's Guide to the HC SR04 https://www.best-microcontroller-projects.com/arduino-ultrasonic-sensor.htmlafd42fa52cb6d0893aece7eeb7d7d983A step-by-step guide to using Arduino ultrasonic sensors for object detection and distance measurement. Details the libraries you need, example code and circuit diagram.
Wed, 17 Apr 2024 16:21:31 -0400
A beginners Arduino Project to Control an LED with a Button https://www.best-microcontroller-projects.com/arduino-led-with-button.html78b0fca90c83e6a9e3965eae78249ef7This beginners guide shows you how to build a simple Arduino circuit to control an LED using a push button. Full connection details and example program included...
Mon, 15 Apr 2024 04:59:45 -0400
Arduino digitalRead; A tutorial on Reliably reading Push Buttons https://www.best-microcontroller-projects.com/arduino-digitalread.html3b6cb38ecb5fc5680e09302fff67a290In this beginner Arduino digitalRead tutorial you'll learn how to use the digitalRead function to read a button avoiding switch bounce. Full example code and explanation included
Fri, 12 Apr 2024 17:32:27 -0400
Learn How to Use a Potentiometer to Control the Servo Angle https://www.best-microcontroller-projects.com/arduino-servo-with-potentiometer.htmlc27cb7ba7919811dc25a86696975dc77An Arduino servo with potentiometer beginners tutorial. This easy Arduino project guides you step-by-step through connecting a servo, pot and board to create a position controller.
Fri, 12 Apr 2024 05:34:48 -0400
BMP280: The many uses for this Pressure Measurement Chip https://www.best-microcontroller-projects.com/bmp280.html4de1cf6e490ce4eaae538c33dcc9aa31BMP280: You can use it for Weather but what about Altitude (yes). How about a fast update rate for rise/sink rate (yes). Find out how to do it All here.
Fri, 12 Apr 2024 05:25:24 -0400
An Arduino potentiometer LED project for beginners: Dim an LED with Arduino https://www.best-microcontroller-projects.com/arduino-potentiometer-led.html694a543c8caf31e45f0c31ffbaf72ef8Learn how to build a simple LED dimmer using an Arduino and potentiometer. This step-by-step tutorial teaches the electronics and coding skills needed...
Sat, 6 Apr 2024 17:12:30 -0400
ADS1115: A Low Cost 16bit ADC with Incredible Accuracy https://www.best-microcontroller-projects.com/ads1115.html21e091b93cfa88fe4bd7b2888e8db325Learn how you can use the ADS1115 precision 16 bit ADC with amazing accuracy. Instantly improve your analog measurements with high resolution capability.
Mon, 1 Apr 2024 13:28:17 -0400
ACS758: How to measure up to ±50A with this magnetic sensor. https://www.best-microcontroller-projects.com/acs758.html26c95c9baf8346211d579184d6d2795fACS758: Use this sensor to measure super high current safely in the presence of hundreds of volts. Learn how to use this chip safely with any microcontroller.
Mon, 1 Apr 2024 03:57:50 -0400
Fauxmo: Add Alexa Voice Control to Any of your Projects https://www.best-microcontroller-projects.com/fauxmo.htmlb5eb0015cd07069c8eacf32024bcf69cLearn to use the Fauxmo library for Alexa voice control of your Arduino projects. Easily Emulate WeMo devices with simple code for custom smart home devices.
Sat, 30 Mar 2024 12:16:42 -0400
ESP32 vs ESP8266: What's the difference and what should you use? https://www.best-microcontroller-projects.com/esp32-vs-esp8266.htmlf2cf328b33af6ef30a051feee1feb444ESP32 vs ESP8266: Both have WiFi but what are the core differences? Find out speeds, SRAM sizes, +hardware modules (Hint the ESP32 has a lot more!).
Sat, 30 Mar 2024 06:41:30 -0400
ESP-01 vs ESP-01S: Which one is right for you? https://www.best-microcontroller-projects.com/esp-01-vs-esp-01s.htmle7e24b983d4ad76aeb6ed8865e598759Confused about the ESP-01 vs ESP-01S? Find out the exact differences between these boards and Learn which one you should use for your next IoT project.
Thu, 28 Mar 2024 07:15:08 -0400
Arduino PulseIn: How to Measure input High or Low Periods https://www.best-microcontroller-projects.com/arduino-pulsein.html3e0e51c3ff0b0a554e9080b52d5609ccThere are two Arduino PulseIn functions. Which one you should use for best accuracy? Why are there two functions? Why must interrupts be on for one and off...
Tue, 26 Mar 2024 09:19:04 -0400
Arduino String to Float: Find out how to do it Easily! https://www.best-microcontroller-projects.com/arduino-string-to-float.htmlb1529da94f87e0e53421b6dc7d695b89Arduino String to float: Is there a simple function that does this for you? Full examples for c-style and C++ string to float conversion
Mon, 25 Mar 2024 17:46:17 -0400
Switch Debounce: How to Instantly Tame Noisy Switches https://www.best-microcontroller-projects.com/easy_switch_debounce.htmle571f08190ca415ed422efa9ea06ca1aSwitch Debounce: Why is your switch oscillating? What affects the amount of bounce from a switch? Three methods to Easily Fix it.
Fri, 22 Mar 2024 10:58:17 -0400
DW01A Battery Protector IC https://www.best-microcontroller-projects.com/dw01a.htmlceb0619ba110294b0cbf430862298845The DW01A chip is a Lithium Ion battery protector commonly used on TP4056 boards. Find out Exactly how it works and how to use it the correct way.
Fri, 22 Mar 2024 05:48:15 -0400
The TCS230 Color Sensing Chip: How it works and how to use it. https://www.best-microcontroller-projects.com/tcs230.html95d42f4aea46cdd8e0771f9cccf64fbfHow to use the TCS230 (/TCS3200) Color detector chip and easily add it to any of your projects.
Tue, 19 Mar 2024 07:58:34 -0400
Digispark ATtiny85 Easy IDE Install and Setup https://www.best-microcontroller-projects.com/digispark-attiny85-arduino-install.html455860732f5f2a40a1b976e4a20e8e24Digispark Attiny85: Easily save space using this tiny chip to replace an Uno. Learn how to program this chip using the standard Arduino IDE.
Sun, 10 Mar 2024 14:56:18 -0400
Easily Build a DIY Heart Rate Sensor with an Arduino https://www.best-microcontroller-projects.com/heart-rate-sensor-arduino.html7d5b6ef8d5ff307f08cdea2a87b776b4This Heart Rate Sensor Arduino Project guides you in creating a pulse rate sensor using an IR LED and a photodiode to detect a pulse from 1st principles...
Thu, 29 Feb 2024 13:17:31 -0500
Fading RGB LED Arduino: Find out How to Do it the Right Way! https://www.best-microcontroller-projects.com/fading-rgb-led-arduino.htmlffa8a2c9fae53bbf1255de3b9e00aadaThis tutorial on Fading an RGB LED with an Arduino, shows you exactly How to wire up and control a 'Breathing' RGB LED, and keep the same color during fades.
Thu, 29 Feb 2024 06:31:03 -0500
Arduino with thermistor: Code it Easily for Temperature Reading https://www.best-microcontroller-projects.com/arduino-with-thermistor.html53c3a9cc763fc085e04cd7a026174a23Learn How to measure temperature using an Arduino with an NTC thermistor. How to get readings using the Steinhart-Hart equation for Maximum Accuracy.
Wed, 28 Feb 2024 04:32:00 -0500
Arduino String: C++ style string vs old style c string Compared. https://www.best-microcontroller-projects.com/arduino-string.htmle1d8469dc17a50ab33166e19ac6c4e7eShould you use the Arduino String class or old style c strings? Is there a memory saving? Which is easier? Find out here with a Full Serial command decoder. Thu, 15 Feb 2024 06:54:47 -0500 DigitalWrite: How to Use it the Right Way!...and How it Works. https://www.best-microcontroller-projects.com/arduino-digitalwrite.htmlb55a9e1940cf00c08bdb44025f88a841Use digitalWrite to control any chip, LED or relay. Understand the underlying code and how to make it 17x faster! Can you use it with PWM pins? Thu, 15 Feb 2024 04:59:12 -0500 Arduino Servo Smoothing: How to Easily Eliminate Jerky Motion https://www.best-microcontroller-projects.com/arduino-servo-smoothing.html136e54c13763aacae8313a9f5483aac8There's a library for Arduino Servo Smoothing but its not called ArduinoSmoothing. Find the library for solving jerky servo movement, and Easy Test Code... Sat, 10 Feb 2024 16:01:56 -0500 DS18B20: Arduino Temperature Measurement made Easy https://www.best-microcontroller-projects.com/ds18b20.htmla7989b59c50064499244242937c29b91DDS18B20: Using One digital I/O pin, Instantly measure temperature using the 1-wire protocol; Find out why the chip has three pnis when you only need two!
Sat, 10 Feb 2024 08:11:49 -0500
Arduino EEPROM - how it works and how to use it - with examples. https://www.best-microcontroller-projects.com/arduino-eeprom.htmlc89127d8524dfaaf4d773e6ffc9746cdArduino EEPROM: How to use it and How to preserve the life of EEPROM. Two example sketches to save multiple values to EEPROM.
Fri, 2 Feb 2024 12:43:56 -0500
arduino control servo without library https://www.best-microcontroller-projects.com/arduino-control-servo-without-library.html23e3be0324ec093dc31ef130099d4c37arduino control servo without library
Wed, 31 Jan 2024 13:25:24 -0500