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Site Map

This page gives you easy access to all the information on the site.

Lolin nodeMCU ESP8266 ESP-12E

ESP8266 Arduino IDE - Learn how to program an ESP8266 using the Arduno IDE.

NodeMCU Firmware - Return the LUA scripting language back into an ESP8266.

ESPLorer - How to use ESPLorer to upload lua scripts to an ESP module.

NodeMCU Examples - from simple LED blink to wifi use.

ESP8266 Webserver - How to make a nodeMCU webeserver to control LEDs.

Digispark Attiny85

How to install and use the Digispark Attiny85

Specific IC Tutorials using Arduino

ADXL345 - How to use the ADXL345 accelerometer to measure roll and pitch.

ADS1115 - How to use this 16 ADC to measure 7.8uV. This is a precision device that you can use to make accurate measurements. It can even measure a small reange of negative voltage - useful for sink/source current measurements.
 
AD9833 - Make a signal generator using the DDS chip to 12.5MHz. Outputs sine, square and triangle waves with a resolution of 0.1Hz.

MAX7219 - How to drive 8x8 led displays using this chip.

DS18B20 - Use the one-wire thermometer to measure accurate temperature; multi drop and long distance.

DHT22 - Also DHT11 (lower spec) - Measure humidity and temperature.

TCS230 - Let your microcontroller see colour!

HD44780 - LCD display driving. Usually a 16 character by 2 line display but can be 20x4.

MCP23017 - A 16 bit port expander (I2C) with comprehensive interrupt system.

MCP23017 Interrupts - Using multiple MCP23017 with interrupts.

BMP280 - Barometric pressure measurement.

Battery Charger - How to charge standard AA batteries.

Pulse Rate - Measurement See your pulse rate using infrared sensors.

Rotary Encoder - How to use them and make even noisy ones behave!

Arduino Hardware Tutorials

Three switch debouncing methods on Arduino : One is amazing!

Arduino Capacitive Sensor Sense objects using only a wire and an analogue input.

Arduino ADC - How it works; Find out its resolution and whether you should divide by 1023 or 1024 in ADC calculations.

Arduino Joystick - Making the joystick easy to use with a useful library.

Arduino Code Specific Tutorials

Arduino delay()

Arduino millis()

Arduino pulseIn() and pulseInLong()

Arduino digitalWrite()

Arduino map() - Why it does not always do what you want.

Arduino for loop - How it works and how to avoid a simple mistake.

Arduino while loop - How to use it and how it is different to the for loop.

Arduino interrupt - How to use them and how to get more, many more!!

Sections

                Find out why you should use a PIC compiler.

Projects

Arduino Projects

• Humidity DHT22
• Temperature DS18B20
• 8x8 LED matrix MAX7219
• MAX6675 0°C to 1024°C
• Pulse Rate Sensor
• Hitachi HD44780 LCD
• Logic Level Converter
• SSD1306 OLED
• BMP280 Pressure

PIC Projects

PIC Parallel PortProgrammer.

16F877 : 50MHz LCD frequencycounter.

16F877 : 50MHz 7 segment frequencycounter.

16F877 : 0-5V LCD volt meter.

16F877 : LCD and Keypad using one 8 bit port (noglue logic).

Direct jump to locked page (needs unlock code)

16F877 : Driving an RGB LED.

16F877 : Serial LCD module.

16F88 : Ultrasonic range finding project.

16F88 : A Real Time Clock (DS1307) using I2C.

16F88 : Driving an LED dot matrix.

16F88 : Universal Infrared Receiver (UIR).

16F88 : Binary Clock

12F675 : Tutorial

12F675 : RS232 Serial transmitter

12F675 : Serial Temperature Logger

12F675 : EEPROM Temperature logger

12F675 : Servo motor driver

12F675 : Servo motor - serial control

Tips and Techniques

General	Resources
ICSP	PIC device comparison
ICSP programming
RS232	RS232 pinout
Debugging Techniques	Using PIC I/O : TRIS, PORT
PIC Timer overview	Crystal ppm calculations
I/O Expansion techniques	Interactive Timer 0 calculator
PIC Programmers	Interactive Timer 1 calculator
	Interactive Timer 2 calculator
Hardware specific
Switch debouncing	Setting up RS232
12F675 : Setting OSCCAL in C	12F675 :Recovering lost calibration
	Use the voltage reference module  as a DAC
Software specific
Hexadecimal conversions
Soft USART (TX) (TX details)	Soft USART (RX/TX) (RX details)
Using fixed point maths
Other
Reading schematics	Multitasking
Prototyping	Electronic schematic symbols
Using an oscilloscope	PWM

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PIC Tutorial

Devices
12F675	16F84
Hardware
PIC Introduction	ICSP	Interrupts
Software
MikroC compiler
Protocols
I2C	RS232	Setting up RS232
SPI
Techniques
Frequency counting	Ultrasonic range finding	Software Tri PWM
Multiplexing	CCP (capture)	Soft PWM
Timer 1 (polled)

PIC Programmer information

Articles

PIC micro programming methods.

PIC timer calculations.

Frequency counter techniques: Direct and Reciprocal counting methods.

Simple multitasking method (works for 12F675 and larger).

Microcontroller Debugging methods (also general debugging methods).

Fixed point maths

Hardware interrupts - a short introduction.

How to use the MC78M05BDTRKG voltage regulator.

Courses and Ebooks on sale

C Course

A new C course showing you how to use C to program a microcontroller (no previous programming experience needed).

Pic C Course (digital download).

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