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224-Superior-Serial.print-statements

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205-Internet-Radio

An Internet Streaming Radio using an ESP32 and a VS1053 MP3 decoder, plus an ILI6341 TFT touch screen

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Use your Arduino to transmit (and receive) data reliably with this easy to use module. See the accompanying video here: https://www.youtube.com/c/RalphBacon

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Absolute Beginners' Guide to programming the ESP32 with dual cores + speed test

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Several sketches and library files that work with the ATTiny85

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RS485 Serial Data Transmission on wires

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Build a USB Volume Control using an Arduino Leonardo or Pro Micro

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Switch off EVERYTHING including the Arduino itself

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258-ESP32-Web-Enabled-with-OTA

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Want to use all SIX GPIO pins on the ATTiny85? Now you can.

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Implementation of a Real World State Machine (simplified)

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Is your battery going flat in your battery-powered Arduino ATMega328P project?

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168-MiniCore-with-ATMega328PB

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How to link the DFPlayer MP3 player to an Arduino

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269-Elecrow-3.5-TFT-with-ESP32-built-in

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Android and Arduino Code for the Smart Phone Charger (user-selected limits on (dis-)charging)

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Update your ESP32 without the USB cable attached

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Use a cheap RTC to wake up your Arduino in Deep Sleep

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Two microwave movement sensors head-to-head. Any better than a PIR?

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A simple protocol from Espressif to allow IOT devices send data to a central unit

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189-Zero-Crossing-Detection

Detect when an AC signal crosses zero (part of TRIAC control project)

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171-Monitor-Your-Battery

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ESP8266-Relay-Part-2-plus-Sonoff-with-Alexa

New code for the ESP8266-01 and a new phone app to control it all - plus first look at the 4-channel Sonoff using Alexa

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TEA5767-FM-Radio-module

Connect this module to your Arduino (or Pi) via I2C for quality FM radio - a building block for a bigger project?

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Load-Cell-Part-1

Weigh anything using your Arduino

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208-Arduino-IDE-Web-Radio-using-a-Task

I ported the PlatformIO version of this project to the Arduino IDE and introduced a dedicated task too

BB5-Moving-to-a-State-Machine

First steps in moving towards a multi-tasking State Machine

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173-ATTiny85-Push-Button-On-Off-control

Control external appliances using this cheap and easy ATTiny85 control module

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PCF8574-Pin-Extender-I2C

Too few pins on your Arduino? Use this I2C controlled pin extender (with optional interrupt) to make life easier

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229-ESP32-Deep-Sleep

Save battery power and put your ESP32 to (deep) sleep - but what happens when it wakes up?

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ATTiny85-Fuse-Resetter-PCB-from-JLCPCB

An Arduino Shield that lets us rewrite the fuses on teh ATTiny85 so that we can use the RST pin as a GPIO pin

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Finally a task scheduler that is super accurate - good enough for a clock!

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Compress your Arduino EEPROM data by 33%

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239-ESP32-NeoPixels

Use a level shifter for all 3v3 microcontrollers

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BB11-Create-an-Arduino-Library

A Real World walkthrough in creating a simple Arduino library

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Secure-Gmail

Send Gmail securely (encrypted) from your Arduino, ESP8266 or other microcontroller

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118-ESP8266-Deep-Sleep

We've covered the Arduino, now it's the turn of the ESP8266

174-ATTiny13-Brain-Dead

Too small to program? Watch the video and find out!

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Digital-Potentiometer-aka-Variable-Resistor

Digital version of a variable resistor - all controlled by an Arduino

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An Arduino controlled Neopixel (WS2812B) LED ring to emulate a TV running thus giving the impression your home is occupied

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219-Raspberry-Pi-PICO-Sound-Generation

Generating sounds using the PICO and a small piezo buzzer

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194-External-Watchdog-Timer-555-with-PCB

Prevent microcontroller latch ups and hang ups with this resetter

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PCBs for the ESP32/VS1053 Web Radio plus a helper PCB for the ILI9341 TFT Touch Screen

198-Wii-Nunchuck-for-your-Arduino

Connect a Wii Nunchuck (or cheap clone) to your Arduino

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Create large numbers on your Arduino-controlled LCD display

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ESP32-SSD1306-OLED

A fast processor, Arduino IDE compatible, with an inbuilt SSD1306 128 x 64 OLED screen

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DS1307-DS3231-Real-Time-Clocks

Simple sketches for the Arduino and RTCs

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178-Arduino-PRO-IDE-PLUS-LCD-Countdown-Timer

Sneak peek at the forthcoming Arduino PRO IDE plus a simple LCD Rotary Encoder Countdown Timer

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Forget using a RTC module, even though they are accurate and cheap. Use an NTP server instead.

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A Universal Timer (or whatever you want) using an ATMega328PB and a simple chip on the SPI bus - easy!

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181-ATTiny13-ATTiny85-Dev-Board

A small development board for the ATTiny13 (and you can easily substitute an ATTiny85) for initial R&D

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202-Assembler-for-Arduino

How to link in an assembler "sketch" into your Arduino sketch - easy!

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TPL5110-Nano-Power-System-Timer

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266-ESP32-Deep-Sleep

A Real World project that uses an ESP32 in Deep Sleep

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So what really happens when we pass a parameter to a function? Why the difference?

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A hardware timer interrupt allows a regular process to run without you doing much at all

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Some essential (but cheap) bits of kits to make programming the Arduino very straightforward

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Dig down below the Arduino-friendly macros to the underlying C++ code

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Light TWO LEDs from a single GPIO pin AND ensure no current wastage

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172-LTC2954-On-Off-Emulator

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254-ESP32-Pond-Controller

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196-Bluetooth-Serial-Comms-for-Arduino

Wireless comms using two, cheap Bluetooth modules is easy and stable

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PIR-ATMega328P-Deep-Sleep

A simple project to detect movement in a dark place

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TCA9548A-I2C_MULTIPLEXER

Need more I2C busses because you have fixed hex addresses for your device? You need this!

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261-ESP32-Debugging-with-cheap-JTAG-module

Forget Serial.print statements, debug your code properly!

ISD1820-Sound-Recording-Module

Record 10 seconds of sound for Arduino, Raspberry Pi or other microcontrollers

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166-ATMega328P-Deep-Sleep-Project-Update

An update to the Deep Sleep Airing Cupboard project, now also a fridge alarm!

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I fixed my dodgy workshop heater by replacing the heater's control PCB with an Arduino Nano

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I tinkered with the ESP32-WROVER kit and here are some resources I found useful

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270-ESP32-JTAG-AIR-PLA-HOT-MELT-INSERTS

A collection of items for ESP32 and Arduino Projects

263-WhatsApp-for-your-ESP32-and-others

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227-printf-for-Arduino-and-ESP32

Formatted output in one easy-to-use line of code

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A cheap PWM speed controller that can handle 30A (more with a heatsink) for my pond pump

RalphBacon/200-GCC-Compiler-Optimisation-for-Arduino

RalphBacon

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